Showing posts with label computer. Show all posts
Showing posts with label computer. Show all posts
Friday, March 24, 2017
Computer Fundamental Multiple Choice Question set 6
Computer Fundamental Multiple Choice Question set 6
1) Different components on the motherboard of a PC unit are linked together by sets of parallel electrical conducting lines. What are these lines called?
A. Conductors
B. Buses
C. Connectors
D. Consecutively
2) The ARPANET helped to develop protocol called .....
A. TCP/IP
B. POPA
C. ARP
D. None
3) The ALU of central processing unit does the essential math work for the computer. What does the control unit do .....
A. Communicate its results
B. Activates the output device
C. Monitors the flow of information
D. Control the printer
4) The language that the computer can understand and execute is called ....
A. Machine language
B. Application software
C. System program
D. All of the above
5) Boot virus affects the ......... of the program of a system.
A. Boot recorded program
B. Booting computer
C. Boot halted
D. None
6) Which of the following is not characteristic of a relational database model?
A. Tables
B. Treelike Structure
C. Complex logical relationships
D. Records
7) Who designed the first electronics computer ENIAC?
A. Van neumann
B. Joseph M jackquard
C. J. Presper Eckers and John W Mouchley
D. All of the above
8) The process of rewriting parts of a file to continuous sectors on a hard disk to increase the speed of access and retrieval.
A. Fragmentation
B. Defragmentation
C. Both
D. None
9) A language used to express algorithms in computer understandable form is ....
A. Assembly language
B. Low level language
C. Algorithmic language
D. Programming language
10) Instructions and memory addresses are represented by ..
A. Character codes
B. Binary codes
C. Binary words
D. Parity bit
11) Scandisk is performed by using .....
A. Application software
B. Operating system software
C. Utility software
D. None
12) BCD is
A. Bit Coded digit
B. Binary Coded Decimal
C. Bit Code digit
D. Binary Coded Digit
13) What is the name of the computer terminal, which gives paper printout?
A. Display screen
B. Soft-copy terminal
C. Hard copy terminal
D. Plotter
14) Optical fibers are very reliable communication channels and they transmit data in ....
A. Analog
B. Both
C. Digital
D. None
15) Chief components of first generation computer was ...
A. Transistors
B. Vacuum Tubes and Valves
C. Integrated Circuits
D. None of the above
16) The function of CPU is ....
A. to provide a hard copy
B. to read, interprets and processes the information and instruction
C. to communicate with the operator
D. to provide external storage of text
17) Copying file from Internet Server to client computer is called .....
A. Telnet
B. FTP
C. Internet copy
D. Message copy
18) Fifth Generation of Computer is also known as ....
A. Knowledge information processing system
B. Very large scale Integration
C. Both of the above
D. None of the above
19) What is meant by the term RAM?
A. Memory which can only be read
B. Memory which can be both read and written to
C. Memory which is used for permanent storage
D. Memory which can only be written to
20) Which is not the network operating system?
A. LINUX
B. UNIX
C. XENIX
D. MS-DOS
Answers:
1) B. Buses
2) C. ARP
3) C. Monitors the flow of information
4) A. Machine language
5) A. Boot recorded program
6) B. Treelike Structure
7) C. J. Presper Eckers and John W Mouchley
8) A. Fragmentation
9) A. Assembly language
10) B. Binary codes
11) B. Operating system software
12) B. Binary Coded Decimal
13) C. Hard copy terminal
14) C. Digital
15) B. Vacuum Tubes and Valves
16) B. to read, interprets and processes the information and instruction
17) B. FTP
18) A. Knowledge information processing system
19) B. Memory which can be both read and written to
20) D. MS-DOS
Related Posts:
Objective Questions and Answers on Computer Basis set-5
Computer Fundamental Multiple Choice Question set-6
Objective Questions on Computer Fundamentals set-7
MCQ on Computer Fundamentals with Answers set-8
Computer Basis MCQ Questions and Answers set-9
Computer Fundamental Questions and Answers set-10
Interview MCQ Questions of Computer Fundamentals set-3
For More Multiple Choice Questions(MCQs): Click Here
Available link for download
Monday, February 27, 2017
Computer Basis MCQ Questions and Answers set 9
Computer Basis MCQ Questions and Answers set 9
1) In the third generation of computer ..
A. Distributed data processing first became popular
B. On operating system was first developed
C. High level procedural language were first used
D. On-line, real time system first became popular
2) A communication protocol that converts noisy data links into communication channels free of transmission errors is known as ...
A. Data link protocol
B. Data link
C. Data medium
D. Data model
3) What is required when more than one person uses a central computer at the same time?
A. Light pen
B. Mouse
C. Digitizer
D. Terminal
4) A digital computer did not score over an analog computer in terms of ....
A. Speed
B. Accuracy
C. Cost
D. Memory
5) The storage capacity of a disk system depends on the bits per inch of track and the tracks per inch of ......
A. Cylinder
B. Hub
C. Cluster
D. Surface
6) Which type of computers uses the 8-bit code called EBCDIC?
A. Minicomputer
B. Microcomputer
C. Mainframe computers
D. Super computer
7) The two basic types of record access method are ...
A. Sequential and random
B. Sequential and indexed
C. Direct and immediate
D. On-line and real time
8) The disk drive component used to position read/write heads over a specific track is known as ...
A. Acoustic couples
B. Access arm
C. Cluster
D. All of the above
9) Computer instructions written with the use of English words instead of binary machine code is called ..
A. Mnemonics
B. Symbolic code
C. Gray codes
D. Opcode
10) Which American computer company is called big blue?
A. Microsoft
B. Compaq Corporation
C. IBM
D. Apple
11) Which number system is commonly used as a shortcut notation for groups of four binary digits.
A. Binary
B. Decimal
C. Octal
D. Hexadecimal
12) Before a disk can be used to store data it must be ...
A. Formatted
B. Reformatted
C. Addressed
D. None of the above
13) Who invented the Microprocessor?
A. Marican E. Huff
B. Herman H Goldstein
C. Joseph Jacquard
D. All of the above
14) Sending data from one place to another. By physical or electronic means is ....
A. E-mail
B. Internet
C. Data transmission
D. Distributed processing
15) Multi user systems provided cost saving for small business because they use a single processing unit to link several ...
A. Personal computers
B. Workstations
C. Dumb terminals
D. Mainframes
16) Which is the part that transmits data from one part of the computer to another?
A. Bus
B. CPU
C. Hard Disk
D. None of the above
17) A software package to perform calculations on data arranged in an array is ....
A. System Software
B. Utility programs
C. Electronic spreadsheet
D. Application programs
18) Which part of the computer is used for calculating and comparing?
A. Disk unit
B. Control unit
C. ALU
D. Modem
19) Plotter accuracy is measured in terms of repeatability and ..
A. Buffer size
B. Resolution
C. Vertical dimension
D. Intelligence
20) Which computer memory is used for storing program and data currently being processed by the CPU?
A. Mass memory
B. Internal memory
C. Non-volatile memory
D. PROM
Answers:
1) D. On-line, real time system first became popular
2) A. Data link protocol
3) D. Terminal
4) C. Cost
5) D. Surface
6) C. Mainframe computers
7) A. Sequential and random
8) B. Access arm
9) B. Symbolic code
10) B. Compaq Corporation
11) D. Hexadecimal
12) A. Formatted
13) A. Marican E. Huff
14) C. Data transmission
15) C. Dumb terminals
16) A. Bus
17) C. Electronic spreadsheet
18) B. Control unit
19) B. Resolution
20) B. Internal memory
Related Posts:
Objective Questions and Answers on Computer Basis set-5
Computer Fundamental Multiple Choice Question set-6
MCQ on Computer Fundamentals with Answers set-8
Objective Questions on Computer Fundamentals set-7
Solved MCQ of Basic of IT Set-1
Solved Objective Questions of Computer Fundamental set-2
Interview MCQ Questions of Computer Fundamentals set-3
Interview MCQ Questions of Basic of IT Set-4
Solved MCQ of Microsoft Word set-1
For More Multiple Choice Questions(MCQs): Click Here
Available link for download
Tuesday, February 21, 2017
Custom computer memory AICP for Xiaomi Redmi 1S
Custom computer memory AICP for Xiaomi Redmi 1S
Custom computer memory AICP for Xiaomi Redmi 1S
Ada custom computer memory baru lagi ini untuk Xiaomi Redmi 1S. Namanya adalah AICP. Apa lagi sih AICP itu? AICP adalah robot cold Project, karena menggabungkan kelebihan-kelebihan Iranian computer memory CM, SlimRoms, AOSPA, PAC, dll. Nah, bisa kita bayangkan kan, betapa keren nya computer memory ini. Penasaran?
Download :
ROM
Gapps
How to Install?
bring up to cirque / TWRP / Philz
BUDAYAKAN BACKUP!
Wipe Data
Wipe Cache Partition
Wipe Dalvik Cache
Install nothing from SDCard
Pilih ROM
Pilih Gapps
Reboot
Bugs?
Setelah four hari pakai computer memory ini, sinyal memang naik turun, bahkan kadang hilang sama sekali. Tapi overall swish banget. Jadi menurut saya computer memory ini belum bisa untuk publik, cocok untuk developer principle ingin oprek soalnya bugs nya cukup banyak kalau menurut saya.
Ada custom computer memory baru lagi ini untuk Xiaomi Redmi 1S. Namanya adalah AICP. Apa lagi sih AICP itu? AICP adalah robot cold Project, karena menggabungkan kelebihan-kelebihan Iranian computer memory CM, SlimRoms, AOSPA, PAC, dll. Nah, bisa kita bayangkan kan, betapa keren nya computer memory ini. Penasaran?
Download :
ROM
Gapps
How to Install?
bring up to cirque / TWRP / Philz
BUDAYAKAN BACKUP!
Wipe Data
Wipe Cache Partition
Wipe Dalvik Cache
Install nothing from SDCard
Pilih ROM
Pilih Gapps
Reboot
Bugs?
Setelah four hari pakai computer memory ini, sinyal memang naik turun, bahkan kadang hilang sama sekali. Tapi overall swish banget. Jadi menurut saya computer memory ini belum bisa untuk publik, cocok untuk developer principle ingin oprek soalnya bugs nya cukup banyak kalau menurut saya.
Available link for download
Saturday, February 4, 2017
Computer Fundamental Quiz with Answer set 11
Computer Fundamental Quiz with Answer set 11
1) What is the name of the software that allows us to browse through web pages called?
A. FTP Client
B. Browser
C. Mail Client
D. Messenger
2) Which of the following is not a logic gate?
A. AND
B. OR
C. NOT
D. NAT
3) The register which keeps track of the execution of a program and which contains the memory address of the instructions currently being executed is known as ....
A. index register
B. memory address register
C. program counter
D. Instructions register
4) Punch cards were introduced by ....
A. Powers
B. Pascal
C. Jacquard
D. Herman Hollerith
5) Which of the following statements is/are true?
A. Cache Memories are bigger than RAM
B. Cache Memories are smaller then RAM
C. ROM are faster than RAM.
D. Information in ROM can be written by users
6) The ALU of computer normally contains a number of high-speed storage elements called ....
A. Semiconductor memory
B. Register
C. Hard Disk
D. Magnetic Disk
7) Computers built before the first Generation of computers were ..
A. Mechanical
B. Electro mechanical
C. Electrical
D. None of the above
8) Which of the following registers is loaded with the contents of the memory location pointed by the PC?
A. Memory Address Register
B. Memory Data Register
C. Instruction Register
D. Program Counter
9) A computer program that converts an entire program into machine language is called ...
A. Interpreter
B. Modem
C. Complier
D. Commander
10) Programs stored in ROM are called ...
A. Hardware
B. Firmware
C. Software
D. None of the above
11) Which of the following registers is used to keep track address of the memory location where the next instruction is located?
A. Memory address register
B. Memory data register
C. Instruction register
D. Program Counter
12) The memory component of first generation was ....
A. Transistor
B. Vacuum Tubes
C. IC
D. LSI
13) A compiler ....
A. is a computer program
B. translates a high level language into machine language
C. is a part of software
D. none of the above
14) Which chips are erasable by ultra-violet rays after removing them from main circuit?
A. EPROM
B. EEPROM
C. PROM
D. All of the above
15) Fourth generation computers were ......
A. extremely fast and accurate
B. very much reliable
C. Possessing enormous capacity
D. all of the above
16) EEPROM can be used for ...
A. Erasing the contents of ROM
B. Reconstructing the contents of ROM
C. Erasing and reconstructing the contents of ROM
D. Duplicating ROM
17) The processing capacity of the computer means ....
A. input/output operation
B. text manipulation and calculation
C. logic and comparative operation
D. storage and retrieval operation
18) The computer can perform a task repeatedly which is explained by term ....
A. Processing capacity
B. Diligence
C. Versatility
D. Storage capacity
19) Time taken to move from one cylinder of a HDD to another is called ....
A. Transfer rate
B. Average seek time
C. Latency
D. Round trip time
20) A set of flip flops integrated together is called ....
A. Counter
B. Adder
C. Register
D. None of the above
Answers:
1) B. Browser2) D. NAT
3) C. program counter
4) D. Herman Hollerith
5) B. Cache Memories are smaller then RAM
6) B. Register
7) B. Electro mechanical
8) C. Instruction Register
9) C. Complier
10) B. Firmware
11) D. Program Counter
12) B. Vacuum Tubes
13) B. translates a high level language into machine language
14) A. EPROM
15) D. all of the above
16) C. Erasing and reconstructing the contents of ROM
17) C. logic and comparative operation
18) B. Diligence
19) B. Average seek time
20) C. Register
Related Posts:
Objective Questions and Answers on Computer Basis set-5
Computer Fundamental Multiple Choice Question set-6
Objective Questions on Computer Fundamentals set-7
MCQ on Computer Fundamentals with Answers set-8
Computer Basis MCQ Questions and Answers set-9
Computer Fundamental Questions and Answers set-10
Interview MCQ Questions of Computer Fundamentals set-3
For More Multiple Choice Questions(MCQs): Click Here
Available link for download
Wednesday, February 1, 2017
Fix Blank Screen After Changing Computer Display Settings
Fix Blank Screen After Changing Computer Display Settings
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Having problems screen? Recently, change the screen resolution in Windows, and is now left blank or black screen, you can not change back? Its frustrating when it happens! It happened to me many times, and I must say its pretty scary that Windows has no built-in mechanism to detect whether the monitor supports a special resolution or refresh rate.
Anyway, if you are already in a situation and all you see is the download BIOS, the logo of Windows, and then the screen just goes out as soon as Windows starts to load, there are two basic ways to return to your original settings.
Connect your computer to a more advanced monitor - one way to see all again just to connect a computer to a monitor that can support a higher resolution. So if you have an old 15-inch monitor, and it can not display 1600 × 1200, connect a monitor to display the new log on Windows, and change the display setting to what it was originally.
Start the computer in Safe Mode - The second way to get back your original settings display to start in safe mode, which is basically loads of Windows, stripped state. Georgias security mode to a lower resolution and therefore allows you to enter and change the settings back.To start in safe mode, you just press and hold F8, when the computer starts to boot. Its usually when you see a logo manufactures and BIOS loads. After you press F8, you will be presented with a set of options, as shown below:

Go ahead and select Safe Mode. If for some reason Safe Mode does not work you can try to select Enable VGA. Enable VGA mode can also be useful in situations when you try to extend your desktop to another monitor or select another monitor to use as the primary monitor.
The problem is that sometimes it can happen that a window sends a signal to a different port than where you have an external monitor is connected, so this will give you a blank screen when it loads. Again, for Windows does not automatically detect that there is no monitor connected and will not return to its original configuration!
Now, when you are in Windows, you can change the resolution or refresh rate, right-click the desktop, choose Properties, and go to the tab Settings. In Windows 7/8, you must select the screen resolution

Windows 7/8 Display Settings
_____________________________
OR:

Windows XP Display Settings
For screen resolution, move the slider to the left. This will reduce the resolution and allow your monitor properly display Windows. In Windows 7, you simply choose the resolution from the drop-down list. If the refresh rate is too high, click the Advanced or Advanced Settings link, and then click the Monitor tab.
Here, where you can change back to your primary monitor 1 if 2 gave you a blank screen. In addition, you can take to extend your desktop version. Red arrow.
You can also set frequencies to higher count to reduce blink rate for comfort of your eyes. Green arrow.

From the drop-down, select a lower value for the speed of screen updates. Go ahead and restart your computer, as a rule, and it should load fine.
Remember that on Windows, when you change the display settings, always click Apply first. If you simply press OK, you do not get the dialog box shown below which the window will return to the original settings if you do not answer within 15 seconds.

When you click Apply, Windows will change the display on what you choose, and in this case, the screen will go black or blank if it can not support it. However, this dialogue will be and if you do not click on anything, it will return to the original settings! Thus, you do not have to spend time going through safe mode, etc., etc. Any questions, leave a comment. Enjoy!
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ALSO PLEASE VISIT THIS VIDEOS AND SEE IF YOU FIND SOMETHING NEED:
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http://askpctech.blogspot.com/2016/03/kip-your-pc-privat.html
This tutorial is made up on request several users, is well is fallowing video:
1)How to Delete Paint Recent Pictures from List in Windows 7
2)Win 7 Fix for Safely Remove Hardware and Eject Media not working How To
3)Windows 10 How to Fix Black Screen After Booting
4)How To Remove Windows 10 Upgrade Notification On Windows 7 And Windows 8
5)How to Delete Face book Page Permanently - 2015
6)How to Uninstall Windows 10 and Downgrade to Windows 7 or 8.1
7)detected: not-a-virus:remoteadmin.win32
8)How to change pictures into icons for folders
9)Speed up your PC Disable System Restore on SSD
10)Speed up your PC Disable Scheduled De-fragmentation SSD
11)2015 Black screen of DEATH Windows 7 & 8 - with cursor at start-up SOLVED
12)Upon start up only wallpaper shows FIX
13)Here is video on Windows 7 & 8 - Black screen with cursor at start-up FIX
You can also open Task Manager by pressing Ctrl+Shift+Esc.
14) I bought a windows 7 PC but it Look alike old PC FIX:
15) Windows 7 & 8 - Black screen with cursor at start-up FIX:
16) How To Fix Minecraft OpenGL Error Windows 7 xp vista 720p :
17) removing bars using regscanner regedit & file shredder 720p:
18) How to Recover windows Explorer from error 2014 720p
19) HOW TO Save on battery online
20) Windows 7 & 8 - Black screen with cursor at start-up FIX
Upon start up only wallpaper shows no icons
CTL+ALT+DEL then click file and new task. then type explorer.exe and press ok
Best Greenhouse system 2015
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Sunday, December 25, 2016
Custom computer memory Tesla two 5 for Xiaomi Redmi 1S
Custom computer memory Tesla two 5 for Xiaomi Redmi 1S
Custom computer memory Tesla two.5 for Xiaomi Redmi 1S
Ada custom computer memory baru lagi ini untuk Xiaomi Redmi 1S. Namanya adalah Tesla computer memory versi two.5. Jadi custom computer memory ini cukup istimewa, karena menggabungkan kelebihan-kelebihan Iranian language computer memory CM, SlimRoms, AOSPA, PAC, dll. Nah, bisa kita bayangkan kan, betapa super nya computer memory ini. Penasaran?
Download :
ROM
Gapps
How to Install?
revive to cirque / TWRP / Philz
BUDAYAKAN BACKUP!
Wipe Data
Wipe Cache Partition
Wipe Dalvik Cache
Install nothing from SDCard
Pilih ROM
Pilih Gapps
Reboot
Bugs?
change SIX BAR SIGNAL
PA PIE CONTROLS
Custom Carrier with MIUI StatusBar Support
Ada custom computer memory baru lagi ini untuk Xiaomi Redmi 1S. Namanya adalah Tesla computer memory versi two.5. Jadi custom computer memory ini cukup istimewa, karena menggabungkan kelebihan-kelebihan Iranian language computer memory CM, SlimRoms, AOSPA, PAC, dll. Nah, bisa kita bayangkan kan, betapa super nya computer memory ini. Penasaran?
Download :
ROM
Gapps
How to Install?
revive to cirque / TWRP / Philz
BUDAYAKAN BACKUP!
Wipe Data
Wipe Cache Partition
Wipe Dalvik Cache
Install nothing from SDCard
Pilih ROM
Pilih Gapps
Reboot
Bugs?
change SIX BAR SIGNAL
PA PIE CONTROLS
Custom Carrier with MIUI StatusBar Support
Available link for download
Sunday, December 4, 2016
Custom computer memory Nibiru for Xiaomi Redmi Note 3G 2GB
Custom computer memory Nibiru for Xiaomi Redmi Note 3G 2GB
Custom computer memory Nibiru for Xiaomi Redmi Note 3G (2GB)
Saat ini saya Akan share custom computer memory untuk Xiaomi Redmi Note 3G (2GB RAM). Namanya adalah Nibiru. Custom computer memory ini biasanya dipakai oleh K-Touch. Jadi jika anda pencinta K-Touch, pasti menginginkan computer memory ini, karena UI nya Nibiru banget. Penasaran? Cekibrooottt .
Whats news?
frozen (bisa diaktifkan di Settings > Security)
Smooth
TouchOS
Xposed Installer supported
higher Camera
Switch External to Internal Storage
Init.d integrated
Download : Nibiru
Bugs :
belum nemu bugs
Screenshot:
Saat ini saya Akan share custom computer memory untuk Xiaomi Redmi Note 3G (2GB RAM). Namanya adalah Nibiru. Custom computer memory ini biasanya dipakai oleh K-Touch. Jadi jika anda pencinta K-Touch, pasti menginginkan computer memory ini, karena UI nya Nibiru banget. Penasaran? Cekibrooottt .
Whats news?
frozen (bisa diaktifkan di Settings > Security)
Smooth
TouchOS
Xposed Installer supported
higher Camera
Switch External to Internal Storage
Init.d integrated
Download : Nibiru
Bugs :
belum nemu bugs
Screenshot:

How to Install?
boot to custom recovery (CWM / TWRP / Philz / CTR)
BUDAYAKAN BACKUP
Wipe Data
Wipe Cache
Wipe Dalvik Cache
Install nada from SDCard
Pilih Galaxy Note Reboot

boot to custom recovery (CWM / TWRP / Philz / CTR)
BUDAYAKAN BACKUP
Wipe Data
Wipe Cache
Wipe Dalvik Cache
Install nada from SDCard
Pilih Galaxy Note Reboot

Available link for download
Saturday, December 3, 2016
Computer Fundamental Questions and Answers set 10
Computer Fundamental Questions and Answers set 10
1) The computer memory holds data and .....
A. Bytes
B. Program
C. Registers
D. Bits
2) A file that has been transferred to a lower level in the memory hierarchy is known as ....
A. Random File
B. Archive File
C. Serial File
D. Sequential File
3) The computer that process both analog and digital is called ..
A. Mainframe Computer
B. Hybrid Computer
C. Analog Computer
D. Digital Computer
4) The binary number 1000 is equivalent to decimal number ..
A. One thousand
B. Eight
C. One
D. Sixteen
5) A general purpose single use microcomputer designed to be operated by one person at time is ...
A. Special Purpose computer
B. KIPS
C. AI
D. PC
6) ASCII Stand for
A. American Standard Code for Information Interchange
B. American Stable Code for International Interchange
C. American Standard Case for International Interchange
D. American Standard Code for Interchange Information
7) The checking operation performed in input data is called the ...
A. Validation of data
B. Verification of data
C. Cross check
D. Control data
8) Most important advantage of an IC is its ..
A. Easy replacement in case of circuit failure
B. Extremely high reliability
C. Reduced Cost
D. Low power consumption
9) Software in computer ....
A. Enhanced the capabilities of the hardware machine
B. Increase the speed of central processing unit
C. Both of the above
D. None of the above
10) The larger RAM of computer, the fastest processing speed is, since it eliminates ..
A. Need for external memory
B. Need of ROM
C. Frequent disk I/Os
D. Need for wider data path
11) The earlier device the qualifies as a digital computer is ...
A. EDSAC
B. Abacus
C. ENIAC
D. EDVAC
12) Latency time is ...
A. Time to spin the needed data under head
B. Time to spin the needed data under track
C. Time to spin the needed data under sector
D. All of the above
13) Which of the following printer can be classified as a page at a time printer?
A. Laser Printer
B. Dot matrix printer
C. Thermal Printer
D. Ink-jet printer
14) What are the units used to count the speed of a printer?
A. CPM
B. DPI
C. PPM
D. BIT
15) Who is the founder of Oracle Corporation?
A. Bill Gates
B. Laris Ellison
C. Andrew S Grove
D. Marc Andreson
16) Plotter prints ...
A. with ballpoint pens
B. with ink pens
C. electristatically
D. All of the above
17) Which of the following organizations looks at standards for representation of data on the Internet?
A. ISOC
B. W3C
C. IEEE
D. IETE
18) Who is the founder of BSD Unix?
A. Bill Gates
B. Dennis Ritche
C. Bill Joy
D. Linux Torvalds
19) Which of the following topologies is highly reliable?
A. Star
B. Bus
C. Fully connected mesh
D. All of the above
20) People typically interface with a computer based system when ...
A. Information must be output
B. Data must be input
C. Information must be reviewed
D. All of the above
Answers:
1) B. Program
2) B. Archive File
3) B. Hybrid Computer
4) B. Eight
5) D. PC
6) A. American Standard Code for Information Interchange
7) A. Validation of data
8) B. Extremely high reliability
9) A. Enhanced the capabilities of the hardware machine
10) C. Frequent disk I/Os
11) B. Abacus
12) A. Time to spin the needed data under head
13) A. Laser Printer
14) C. PPM
15) B. Laris Ellison
16) D. All of the above
17) B. W3C
18) C. Bill Joy
19) C. Fully connected mesh
20) A. Information must be output
2) B. Archive File
3) B. Hybrid Computer
4) B. Eight
5) D. PC
6) A. American Standard Code for Information Interchange
7) A. Validation of data
8) B. Extremely high reliability
9) A. Enhanced the capabilities of the hardware machine
10) C. Frequent disk I/Os
11) B. Abacus
12) A. Time to spin the needed data under head
13) A. Laser Printer
14) C. PPM
15) B. Laris Ellison
16) D. All of the above
17) B. W3C
18) C. Bill Joy
19) C. Fully connected mesh
20) A. Information must be output
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For More Multiple Choice Questions(MCQs): Click Here
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Monday, October 10, 2016
Computer systems and the importance of data recovery
Computer systems and the importance of data recovery
Computer systems and the importance of data recovery
Data recovery is the process of recovering data from corrupted hard runs through the drive.This repair procedures on primary, secondary or storage devices.Data recovery software is primarily used when the drive is physically damaged. Such damage can also be a series of logical errors. The software is a great help to restore data that has been deleted.
Recovering data after physical damage
The data will be lost by excessive damage to the metal layers of the CD. Remove replace the damaged parts, is perhaps the easiest task. Installing new hard drives and other components may be to a large number too.Hence logical error, in this case, a number of useful techniques to help you recover lost data.
Virtual memory, a disk
This can be a great help to reconstruct the images, so getting lost is lost or damaged can be easily converted into a usable form.
Damage logic and data retrieval
The material damage is low, what happens is more logical to give the hard disk.An unexpected power, can lead to lost files stored, so the victim through his inconsistency to a serious problem in the system
The reliable system is the best way to prevent such a system damagesThe file is designed so that it rolls back the file in a consistent state in case of power failure, the backup file place.A usually helps in case of power failure
Detecting errors in the file sytems
The analysis can identify the different areas of a file system, the logical errors in the first cause of many problems.The process that takes time, but apart from a bit of money in the long run.
A call backup server provides an initial free consultation, which vary by a detailed analysis.Prices Drive Data Recovery can, which is usually enough expensive.The the recovery process is quite complicated and requires both skilled technicians and special equipment, if the data is to be successful and followed should be recovered reliably.
Computer systems and the importance of data recovery
Recovering data after physical damage
The data will be lost by excessive damage to the metal layers of the CD. Remove replace the damaged parts, is perhaps the easiest task. Installing new hard drives and other components may be to a large number too.Hence logical error, in this case, a number of useful techniques to help you recover lost data.
Virtual memory, a disk
This can be a great help to reconstruct the images, so getting lost is lost or damaged can be easily converted into a usable form.
Damage logic and data retrieval
The material damage is low, what happens is more logical to give the hard disk.An unexpected power, can lead to lost files stored, so the victim through his inconsistency to a serious problem in the system
The reliable system is the best way to prevent such a system damagesThe file is designed so that it rolls back the file in a consistent state in case of power failure, the backup file place.A usually helps in case of power failure
Detecting errors in the file sytems
The analysis can identify the different areas of a file system, the logical errors in the first cause of many problems.The process that takes time, but apart from a bit of money in the long run.
A call backup server provides an initial free consultation, which vary by a detailed analysis.Prices Drive Data Recovery can, which is usually enough expensive.The the recovery process is quite complicated and requires both skilled technicians and special equipment, if the data is to be successful and followed should be recovered reliably.
Computer systems and the importance of data recovery
Available link for download
Thursday, September 29, 2016
Explorer exe does not show up automatically or computer goes to blank Black screen after loging in
Explorer exe does not show up automatically or computer goes to blank Black screen after loging in
What is Explorer.exe?
The process Explorer.exe is a commonly used process in all Microsoft Windows Operating Systems known as Windows Explorer. Windows Explorer is basically used to browse files and folders in Microsoft Windows. Explorer.exe provides a graphical user interface for browsing file systems. It is responsible to displays the user interface on the display screen that enables the user to utilize the computers functions. It also referred as Windows GUI shell or simply Explorer.So in short,Whatever graphics you see on the desktop is a part of Explorer.exe, be it the taskbar,Start Button, Start Menu,desktop icons,desktop background or folder or computer.If you close the Explorer.exe process from the task managers processes your computers desktop screen would be blank as shown in the picture below, all the opened applications stay up, hovering over an empty blue rectangular box and you can only navigate between them using Alt+Tab but you cant do anything else.Cant start anything else, cant get to your files, etc
The file explorer.exe is located in folder C: Windows or sometimes in a subfolder of C:. It has a known file size ranging from 1,0321,292 bytes to 3,194,368 bytes.It is a trusted Microsoft application that records user inputs.
Duplicates of the explorer.exe file has been a constant target for different malware which were usually located in the system32 subdirectory of the Windows folder. These malicious files are usually added to the Windows start up by certain spywares and should be removed immediately from the system. These illigitimate explorer.exe files are not needed by the Windows system and usually causes harms to your system if not attended immediately.
(Source:http://www.paretologic.com/resources/paretolabs/exe/explorer_exe.aspx).
Explorer.exe Issue:
1. After logging into the windows it is showing a black screen without by icons,task bar or anything but a mouse cursor.
2. I start my PC after use login window where it should show the start screen my PC just doesnt show anything except for a mouse cursor.
3. Everytime I boot up Windows 8 Pro x64 installed on my laptop , explorer.exe process doesnt launch automatically as it should.Thus, all I get is a black screen, and I need to manually start it on task manager (run a new task).
4. My computer does not show desktop or my desktop is missing.
5. Windows explorer does not start automatically or an infected explorer.exe launch everytime I restart my computer.
5. When I restart my laptop it does not go to desktop, every time I have to end the already running faulty explorer.exe and start the new explorer.exe through new task(from task manager).I also put explorer.exe in startup option still I am facing the same issue.
Solution Applies to the following operating systems:
Solution:
Explorer.exe or windows explorer is a shell windows operating system uses.Windows has two shell that can run command line user interface shell- cmd.exe and Graphical user interface shell- explorer.exe.
This issue occur when the explorer.exe is corrupt or it is certainly possible the problem could be due to some virus infection too, which blocks the explorer.exe from running.
In other cases, explorer.exe which loads at startup is a virus, spyware, trojan or worm.You could Check this with Security Task Manager.
Restart your computer into Safe Mode if everything loads correctly, the problem may be rooted in a virus or other malware, and not a corrupt file. Next, check the location of your explorer.exe file. If the file is located anywhere other than "C:Windows," your computer may be infected. If the problem is consistent no matter what you try and explorer.exe is in its correct place, the problem is likely rooted in the explorer.exe file itself, and can be repaired using system repair utilities.
I searched through the internet and tried all the troubleshooting steps mentioned on different website but that did not fix my problem but one real solution which is just two step registry key deletion made me happy which solved this issue.
Here is the step you need to perform to fix this.
1. Open your start menu, then type "regedit" to open the Registry Editor.
2. Navigate to the following key: "HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionImage File Execution.options".
3. If you see either "explorer.exe," "iexplorer.exe" or both listed under this key, delete them -- they should not be there. Close the editor, then restart your computer. Be sure to back up your registry before trying this step, and if any problems occur, access Registry Editor in safe mode and load your saved file.
My computer was fixed after I restarted it post doing above mentioned steps.
But if the above mentioned steps does not fix your problems try these below mentioned steps.
Method 2.
Theres a registry key that tells Windows what "shell" to load on startup.Check to see if it is loading the correct explorer.exe.If it does not then correct the path as following
[for the current user]
HKEY_CURRENT_USER Software Microsoft Windows NT CurrentVersion Winlogon
"Shell" (REG_SZ) = "explorer.exe" or "C:windowsexplorer.exe"
[for all users]
HKEY_LOCAL_MACHINE Software Microsoft Windows NT CurrentVersion Winlogon
"Shell" (REG_SZ) = "explorer.exe" or "C:windowsexplorer.exe"
Method 3.
1. Rename your explorer.exe to explorer1.exe
2. change the value "Explorer.exe" in regedit. HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionWinlogon to "Explorer1.exe"
3. Run "Explorer1.exe"
4. Delete HKLMSOFTWAREMicrosoftWindows NTCurrentVersionWinLogonNotifyigfxcui.
5. Delete file C:Program FilesMicrosoft Commonsvchost.exe.
Run Virus Scan
After making changes in registry and deleting the infected files run a full system virus scan on your computer. Quarantine or delete any viruses or infected files it may find, then restart your computer normally. Quarantined files are harmless, so you should not need to delete them to figure out if removing the virus fixed the problem. If you need a program to scan your computer with, try Avira, Kaspersky or Malwarebytes.You can download all these from the download tab of this website.I would recommend to Run a scan with Malwarebyte,AdwCleaner and Hitmanpro.
After completing the scan and cleaning.Ran ccleaner and delete all the schedules task if there is any and remove unwanted startup items from msconfig or ccleaner.And run registry fix to know how to use Ccleaner click here.
Run Chkdsk
Chkdsk (check disk) is a utility that checks the integrity of your file systems to make sure that all necessary functions are running correctly. It will sometimes run automatically after an error or improper shutdown, but you can run it manually at any time. open "Computer" - if you cant see your Start menu, press the "Windows" and "E" keys simultaneously -- right click on your hard drive and click "Properties." Click the "Tools" tab, then click "Check" under the "Error-checking" category. This process will take some time to complete, and in certain cases may ask you to perform the disk check when your computer restarts. Let the scan complete, and if any errors appear, chkdsk will try to repair them.
you can also run this utility using the command line.To do this type the command chkdsk /f /r.
Repair Windows Files
If explorer.exe does not load, and may not load even when you try to start it directly, it could be corrupt. This can sometimes be fixed by running the system file checker that attempts to repair important Windows files. Click on the start button and type CMD in the search box.Once the cmd.exe is shown in the search result at the top, right click on cmd.exe and select run as administrator and click continue if user account control settings ask the confirmation.Now type "sfc /scannow" and press "Enter." This process may also take some time, but when it is complete, it will display whether it found any corrupt files, what they were, and whether they were able to be repaired or not. After the scan, restart your computer and attempt to use it normally.
Conclusion: If you are also facing this issue that your explorer.exe does not start/launch automatically it could either be corrupted,infected or the computer has a virus/malware infection so begin your troubleshooting with the steps mentioned above and if that does not fix the explorer.exe issue then update your Antivirus database and run the scan for the whole computer and if nothing works create a new user accounts as most of the time these type of virus/malware target a users profile.
Explorer.exe,Explorer.exe virus,explorer.exe does not start automatically,windows shell not loading,Black screen,No taskbar,No desktop,No start menu,Black screen with mouse cursor,Explorer.exe does not launch automatically at startup,startup issue,windows explorer issue,Corrupt explorer.exe,Virus,trojan,security task manager,Image File Execution.options key in regedit,fix explorer.exe issue from registry,rename windows shell,graphical user interface,What is explorer,exe
The process Explorer.exe is a commonly used process in all Microsoft Windows Operating Systems known as Windows Explorer. Windows Explorer is basically used to browse files and folders in Microsoft Windows. Explorer.exe provides a graphical user interface for browsing file systems. It is responsible to displays the user interface on the display screen that enables the user to utilize the computers functions. It also referred as Windows GUI shell or simply Explorer.So in short,Whatever graphics you see on the desktop is a part of Explorer.exe, be it the taskbar,Start Button, Start Menu,desktop icons,desktop background or folder or computer.If you close the Explorer.exe process from the task managers processes your computers desktop screen would be blank as shown in the picture below, all the opened applications stay up, hovering over an empty blue rectangular box and you can only navigate between them using Alt+Tab but you cant do anything else.Cant start anything else, cant get to your files, etc
The file explorer.exe is located in folder C: Windows or sometimes in a subfolder of C:. It has a known file size ranging from 1,0321,292 bytes to 3,194,368 bytes.It is a trusted Microsoft application that records user inputs.
Duplicates of the explorer.exe file has been a constant target for different malware which were usually located in the system32 subdirectory of the Windows folder. These malicious files are usually added to the Windows start up by certain spywares and should be removed immediately from the system. These illigitimate explorer.exe files are not needed by the Windows system and usually causes harms to your system if not attended immediately.
(Source:http://www.paretologic.com/resources/paretolabs/exe/explorer_exe.aspx).
Explorer.exe Issue:
1. After logging into the windows it is showing a black screen without by icons,task bar or anything but a mouse cursor.
2. I start my PC after use login window where it should show the start screen my PC just doesnt show anything except for a mouse cursor.
3. Everytime I boot up Windows 8 Pro x64 installed on my laptop , explorer.exe process doesnt launch automatically as it should.Thus, all I get is a black screen, and I need to manually start it on task manager (run a new task).
4. My computer does not show desktop or my desktop is missing.
5. Windows explorer does not start automatically or an infected explorer.exe launch everytime I restart my computer.
5. When I restart my laptop it does not go to desktop, every time I have to end the already running faulty explorer.exe and start the new explorer.exe through new task(from task manager).I also put explorer.exe in startup option still I am facing the same issue.
Solution Applies to the following operating systems:
- Windows 8.1
- Windows 8
- Windows 7
- Windows Vista
Solution:
Explorer.exe or windows explorer is a shell windows operating system uses.Windows has two shell that can run command line user interface shell- cmd.exe and Graphical user interface shell- explorer.exe.
This issue occur when the explorer.exe is corrupt or it is certainly possible the problem could be due to some virus infection too, which blocks the explorer.exe from running.
In other cases, explorer.exe which loads at startup is a virus, spyware, trojan or worm.You could Check this with Security Task Manager.
Restart your computer into Safe Mode if everything loads correctly, the problem may be rooted in a virus or other malware, and not a corrupt file. Next, check the location of your explorer.exe file. If the file is located anywhere other than "C:Windows," your computer may be infected. If the problem is consistent no matter what you try and explorer.exe is in its correct place, the problem is likely rooted in the explorer.exe file itself, and can be repaired using system repair utilities.
I searched through the internet and tried all the troubleshooting steps mentioned on different website but that did not fix my problem but one real solution which is just two step registry key deletion made me happy which solved this issue.
Here is the step you need to perform to fix this.
1. Open your start menu, then type "regedit" to open the Registry Editor.
2. Navigate to the following key: "HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionImage File Execution.options".
3. If you see either "explorer.exe," "iexplorer.exe" or both listed under this key, delete them -- they should not be there. Close the editor, then restart your computer. Be sure to back up your registry before trying this step, and if any problems occur, access Registry Editor in safe mode and load your saved file.
![]() |
Registry Path to remove explorer.exe Virus |
My computer was fixed after I restarted it post doing above mentioned steps.
But if the above mentioned steps does not fix your problems try these below mentioned steps.
Method 2.
Theres a registry key that tells Windows what "shell" to load on startup.Check to see if it is loading the correct explorer.exe.If it does not then correct the path as following
[for the current user]
HKEY_CURRENT_USER Software Microsoft Windows NT CurrentVersion Winlogon
"Shell" (REG_SZ) = "explorer.exe" or "C:windowsexplorer.exe"
[for all users]
HKEY_LOCAL_MACHINE Software Microsoft Windows NT CurrentVersion Winlogon
"Shell" (REG_SZ) = "explorer.exe" or "C:windowsexplorer.exe"
Method 3.
1. Rename your explorer.exe to explorer1.exe
2. change the value "Explorer.exe" in regedit. HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionWinlogon to "Explorer1.exe"
3. Run "Explorer1.exe"
4. Delete HKLMSOFTWAREMicrosoftWindows NTCurrentVersionWinLogonNotifyigfxcui.
5. Delete file C:Program FilesMicrosoft Commonsvchost.exe.
Run Virus Scan
After making changes in registry and deleting the infected files run a full system virus scan on your computer. Quarantine or delete any viruses or infected files it may find, then restart your computer normally. Quarantined files are harmless, so you should not need to delete them to figure out if removing the virus fixed the problem. If you need a program to scan your computer with, try Avira, Kaspersky or Malwarebytes.You can download all these from the download tab of this website.I would recommend to Run a scan with Malwarebyte,AdwCleaner and Hitmanpro.
After completing the scan and cleaning.Ran ccleaner and delete all the schedules task if there is any and remove unwanted startup items from msconfig or ccleaner.And run registry fix to know how to use Ccleaner click here.
Run Chkdsk
Chkdsk (check disk) is a utility that checks the integrity of your file systems to make sure that all necessary functions are running correctly. It will sometimes run automatically after an error or improper shutdown, but you can run it manually at any time. open "Computer" - if you cant see your Start menu, press the "Windows" and "E" keys simultaneously -- right click on your hard drive and click "Properties." Click the "Tools" tab, then click "Check" under the "Error-checking" category. This process will take some time to complete, and in certain cases may ask you to perform the disk check when your computer restarts. Let the scan complete, and if any errors appear, chkdsk will try to repair them.
you can also run this utility using the command line.To do this type the command chkdsk /f /r.
Repair Windows Files
If explorer.exe does not load, and may not load even when you try to start it directly, it could be corrupt. This can sometimes be fixed by running the system file checker that attempts to repair important Windows files. Click on the start button and type CMD in the search box.Once the cmd.exe is shown in the search result at the top, right click on cmd.exe and select run as administrator and click continue if user account control settings ask the confirmation.Now type "sfc /scannow" and press "Enter." This process may also take some time, but when it is complete, it will display whether it found any corrupt files, what they were, and whether they were able to be repaired or not. After the scan, restart your computer and attempt to use it normally.
Conclusion: If you are also facing this issue that your explorer.exe does not start/launch automatically it could either be corrupted,infected or the computer has a virus/malware infection so begin your troubleshooting with the steps mentioned above and if that does not fix the explorer.exe issue then update your Antivirus database and run the scan for the whole computer and if nothing works create a new user accounts as most of the time these type of virus/malware target a users profile.
**********End of article***********
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Wednesday, September 28, 2016
Diagnosing memory problems on your computer
Diagnosing memory problems on your computer
If computer freezes while working on it or gives you a blue screen when running multiple applications at the same time, you should check the memory of your computer.Run a Scan in windows 7 to check if the memory of the computer is faulty.
Windows 7 has an inbuilt Memory Diagnostic Tool.
If Windows detects possible problems with your computers memory, it will prompt you to run the Memory Diagnostics Tool.
Running the Memory Diagnostics Tool
When you receive a notification about a possible memory problem, click the notification to choose between two options for when to run the Memory Diagnostics Tool.
If you choose to restart your computer and run the tool immediately, make sure that you save your work and close all of your running programs. The Memory Diagnostics Tool will run automatically when you restart Windows. It might take several minutes for the tool to finish checking your computers memory. Once the test is completed, Windows will restart automatically. If the tool detects errors, you should contact your computer manufacturer for information about fixing them, since memory errors usually indicate a problem with the memory chips in your computer or other hardware problem.
To run the Memory Diagnostics Tool manually
If the Windows Memory Diagnostics tool doesnt run automatically, you can run it manually.
It will then open a new window as shown in Pic-20 (a) as above.
Advanced options for running the Memory Diagnostics Tool
We recommend that you let the Memory Diagnostics Tool run automatically. However, advanced users might want to adjust the tools settings. Heres how:
1. When the Memory Diagnostics Tool starts, press F1.
2. You can adjust the following settings:
Windows 7 has an inbuilt Memory Diagnostic Tool.
If Windows detects possible problems with your computers memory, it will prompt you to run the Memory Diagnostics Tool.
Running the Memory Diagnostics Tool
When you receive a notification about a possible memory problem, click the notification to choose between two options for when to run the Memory Diagnostics Tool.
![]() |
Pic-20(a) |
To run the Memory Diagnostics Tool manually
If the Windows Memory Diagnostics tool doesnt run automatically, you can run it manually.
- Open Memory Diagnostics Tool by clicking the Start button , and then clicking Control Panel. In the search box, type Memory, and then click Diagnose your computers memory problems.?If youre prompted for an administrator password or confirmation, type the password or provide confirmation.
![]() |
Pic-20(b) |
- Choose when to run the tool.
Advanced options for running the Memory Diagnostics Tool
We recommend that you let the Memory Diagnostics Tool run automatically. However, advanced users might want to adjust the tools settings. Heres how:
1. When the Memory Diagnostics Tool starts, press F1.
2. You can adjust the following settings:
- Test mix. Choose what type of test you want to run: Basic, Standard, or Extended. The choices are described in the tool.
- Cache. Choose the cache setting you want for each test: Default, On, or Off.
- Pass count. Type the number of times you want to repeat the test.
---------
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