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Worksheetsمهارات حاسب
Total questions: 110
Worksheet time: 18mins
Digital computer carries out functions
A) Takes data as input.
B) Stores the data.
C) Processes the data.
D) all the above steps.
Any kind of computers consists of
A) Hardware and application
B) Software and application
C) Hardware and Software
D) None of these
_______ piece of computer hardware equipment to provide data and control signals to an information processing system
A) Output Device
B) Input Devices
C) i/p and o/p Devices
D) None of them
Input device Translate data from form that humans understand to one that the computer can work with
a) True
b) False
One of these is not Input Devices
A) Keyboard
B) Scanner
C) Mouse
D) Printer
Generally standard Keyboard has
A) 109 keys
B) 103 keys
C) 104 keys
D) 200 keys
The CPU is comprised of
A) Arithmetic Logic Unit
B) Control Unit
C) Registers
D) All the above
the ______ is the most important element of a computer system
A) ALU
B) CU
C) ROM
D) CPU
main types of optical media
A) CD disc
B) DVD disc
C) Blu-ray disc
D) All the above
DVDs can store up to
A) 700 MB
B) 804 GB
C) 8.4 GB
D) 1.44 MB
_______ like as addition, subtraction, multiplication and division
A) Arithmetic calculations.
B) Logical operation
C) Arithmetic Logic Unit.
D) All the above.
One of these is not Output Devices
A) Keyboard
B) plotters
C) Monitor
D) Printer
_______ like compare numbers, letters, or special characters
A) Arithmetic calculations.
B) Logical operation.
C) Arithmetic Logic Unit.
D) all the above
Printer types
A) Laser Printer
B) Ink Jet Printer
C) Dot Matrix Printer
D) All the above
_____ Read whatever data the instruction requires from cells in memory
A) Arithmetic Logic Unit.
B) Control Unit.
C) Registers
D) All the above.
system software consists of an
A) operating system
B) collection of programs
C) spreadsheet
D) image viewer
______ Read whatever data the instruction requires from cells in memory
A) Arithmetic Logic Unit.
B) Control Unit.
C) Registers
D) All the above.
_____ Stores the data that is to be executed next
A) Arithmetic Logic Unit
B) Control Unit.
C) Registers.
D) All the above
Primary Memory such as
A) RAM
B) ROM
C) CD-ROM
D) ROM&RAM
One of these is not system software
A) Linux
B) Unix
C) Opera
D) DOS
RAM stores data randomly and the processor accesses
A) True
B) False
All of these is application software except
A) Word Processing
B) Microsoft Windows
C) Database Software
D) Presentation Software
ROM stays active regardless of whether power supply to it is
A) turned on only
B) turned off only
C) turned on and off
D) None of them
The basic unit used in computer data storage is called
A) bit
B) byte
C) mega
D) bity
Secondary Memory such as
A) Hard drive
B) Optical Disk
C) Flash Disk
D) All the above
1 byte a number from
A) 0 to 125
B) 0 to 134
C) 0 to 255
D) 0 to 1024
The speed of _____ is measured by Hertz
A) CU
B) CPU
C) ALU
D) ROM
_________ that store and provides relatively quick access to large amounts of data on a electromagnetically charged surface or set of surfaces
A) Flash drive
B) Optical Disk
C) Hard Disk
D) All the above
1 million cycles per second or 1000 Hz is
A) 1 HZ
B) 100 HZ
C) 1 MHZ
D) 10 MHZ
A small, single-user computer based on a microprocessor is
A) Minicomputer
B) Workstation
C) Supercomputer
D) Personal computer
_____ is call burners or writers
A) Flash drive
B) Optical Disk
C) Hard Disk
D) All the above
______ type of laptop that is designed to be even more portable.
A) Netbook
B) Laptop
C) Mobile
D) Smartphones
Knowledge is
A) Facts and figures which relay something specific, but which are not organized in any way
B) For data to become information, it must be contextualized, categorized, calculated .
C) closely linked to doing and implies know-how and understanding
D) is a powerful mobile phone that is designed to run a variety of applications
all of these is Characteristics of Computer except
A) Data
B) Accuracy
C) Speed
D) Versatility
Which type of software controls the allocation of resources and software on the computer
A) Operating system software
B) Utility software
C) Browser software
D) Security software
______ can perform different types of tasks with the same ease
A) Data
B) Accuracy
C) Speed
D) Versatility
Limitation of Computers are
a) Computer does not work on itself
b) Computers are not intelligent
c) Computers can not take decisions on its own
d) all the above
Which one of the following terms describes the physical components of a computer system?
A) Hardware
B) Freeware
C) Software
D) Courseware
______ is data that are processed to be useful
a) Information
b) Data
C) Accuracy
D) Wisdom
Which one of the following is the delivery of training or education programs by electronic means
A) E-learning
B) E-college
C) E-teaching
D) E-school
is a powerful mobile phone that is designed to run a variety of applications in addition to phone service
A) Netbook
B) Laptop
C) Smartphones
D) Mobile service
The most obvious difference is that tablet computers don't have keyboards or touchpads is
A) Laptop
B) Tablet Computers
C) Smartphones
D) Mobile service
Which one of the following statements about Read Only Memory is true?
A) Application programs can write data to ROM and read
B) The contents of ROM are not deleted when the computer is switched off
C) Internet pages are stored in ROM while they are being loaded
D) The contents of ROM are deleted when the computer is switched off
minicomputer is
A) A powerful, single-user computer. A workstation is like a personal computer
B) A powerful multi-user computer capable of supporting many hundreds users simultaneously
C) A multi-user computer capable of supporting from 10 to hundreds of users simultaneously
D) An extremely fast computer that can perform hundreds of millions of instructions per second
which one of the following can reduce the performance of a computer
A) adding new RAM and mouse
B) adding a scanner and mouse
C) running several app at one time
D) switching between applications
Which one of the following statements about RAM is true?
A) retains data when computer shuts down
B) RAM is read and write memory
C) RAM is write-only memory
D) cannot be increased in computer
which one of the following is an example of software
A) Central processing unit
B) An internet browser
C) A hard disk and Mouse
D) Personal digital assistant
A laptop is most likely to have which one of the following input devices fitted as standard?
A) Scanner
B) Joystick
C) Mouse
D) Touchpad
Which one of the following describes Windows 7?
A) A database application
B) An anti-virus scanner
C) A backup utility
D) An operating system
Which one of the following is most likely to improve the performance of the computer?
A) Increasing the number of applications running simultaneously
B) Increasing the size of the computer monitor being used
C) Increasing the amount of random access memory being used
D) reduce the size of the computer monitor being used
Which type of software controls the allocation of resources and software on the computer?
A) Operating system software
B) Utility software
C) Browser software
D) Security software
Which one of the following can be used to both input and output information?
A) Touchscreen
B) Monitor
C) Keyboard
D) Mouse
Which one of the following would be most used by someone who travels by train to work in various locations?
A) Scanner
B) Printer
C) Laptop
D) Desktop
Which one of the following is a portable digital device?
A) Photocopier Computer screen
B) Desktop computer notebook
C) Personal digital assistant
D) Computer screen notebook
Which one of the following is a kilobyte?
A) 1,000,000 bytes
B) 1000 bytes
C) 1024 bits
D) 1024 bytes
The progress in Computer Science education & digital skills that flow
computing innovation in machine learning
A) true
B) false
.....is an incredibly large set of information that cannot be analyzed by typical
data processing methods.
A) Information
B) Big Data
C) Data
D) none of these
..... is a computerized method of identifying people based solely on their facial
features.
A) Facebook application
B) organizing patient data
C) Facial recognition
D) None of these
Law enforcement has long been interested in facial recognition and has
deployed it at
A) Airports
B) Train stations
C) Border crossings
D) All the above
facial recognition technology is most successful on Facebook because
A) its users help identify the subjects of the photos
B) Facebook holds billions of photos and receives millions more every day
C) Facebook can learn what a person looks like from different angles
D) All the abov
Facebook is....percent accurate when recognizing a face in an image
A) 80.50
B) 97.35
C) 55.95
D) 75.68
......is a method of operating or controlling a process by automatic means
A) Automation
B) Robotics
C) Big Data
D) none of these
....is programmed to show you posts that are catered to your interests and past
social media behavior
A) Netflix
B) Facebook
C) Google
D) All of these
The medical industry is also experimenting with a variety of applications,
including
A) predicting life spans
B) organizing patient data
C) even diagnosing certain diseases.
D) All the above
The sequence of steps to be performed in order to solve a problem by the computer is known as
A) algorithm
B) system
C) flowchart
D) none of the above
Flowchart and algorithms are used for
A) better programming
B) easy testing and debugging
C) efficient coding
D) all of them
the chart that contains only function flow and no code is called as
A) flowchart
B) structure chart
C) both A and B
D) none of these
The _______ provides pictorial representation of given problem
A) Algorithm
B) Flowchar
C) Pseudo code
D) All of these
The ______ symbol is used at the beginning of a flow chart.
A) Circle
B) Rectangle
C) Diamond
D) None of these
The _______ symbol is used to represent decision in flowchart.
A) Circle
B) Rectangle
C) Diamond
D) None of these
When an algorithm is written in the form of a programming language, it becomes a _________
A) Flowchart
B) Program
C) Pseudo code
D) Syntax
The _______ provides pictorial representation of given problem
A) Algorithm
B) Flowchar
C) Pseudo code
D) All of these
Desktop and laptop computers are the only devices that can run applications.
True
False
………is the app can help you learn new languages.
Gmail
intagram
viber
Duolingo
Types of Internet service
Dial-up application.
Satellite application.
Satellite & Dial-up.
none of them.
………are small applications that allow you to view certain types of content within your web
browser.
Plug-ins.
URL.
NCDOT.
links.
………is the app can help you learn new languages.
Gmail
intagram
viber
Duolingo
………are small applications that allow you to view certain types of content within your web
browser.
Plug-ins.
URL.
NCDOT.
links.
The………is the most prominent part of a web address
A)URL.
B)Plug-ins.
C)domain name.
D)none of them.
The………often tells your browser to load a specific page.
A)file path.
B)domain name.
C)NCDOT.
D)URL.
The………tells your browser to scroll to or load a specific part of the page.
A)file path.
B)domain name.
C)URL.
D)anchor.
operating system manages the computer's………
A)memory.
B)processes.
C)software and hardware.
D)all of them.
Operating systems for mobile devices such as
A)Apple iOS.
B)Mac OS.
C)Google Android.
D)A and C.
The most popular search engines is………
A)Yahoo.
B)Google.
C)Bing.
D)firefox.
………is the final Step of Processing Information.
A)Execute Phase.
B)Decode Phase.
C)Writeback Phase.
D)Fetch Phase.
General program that is used to help users and work as an interface between computer and
users is called………
A)hardware.
B)software.
C)computer peripherals.
D)programs.
The………must design and program the overlay structure.
A)programmer.
B)system architect.
C)system designer.
D)none of the mentioned.
In your PC, there is a bit of ROM called.... which is used to start up the computer
A)BLOS
B)RAM
C)ROM
D)CDROM
.....refers to the base-10 numbering system
A)Binary
B)hexDecimal
C)Decimal
D)octal
______ refers to anything that has the potential to cause serious harm to a computer system
A) A error
B) A threat
C) A network
D) none of these
Each time the spreadsheet program runs, the virus runs, too
A) true
B) false
______ may erase your hard disk
A) E-mail viruses
B) Trojan horse
C) Ant-virus
D) none of these
Traditional computer viruses were first widely seen in the late
A) 1990s
B) 1985s
C) 1955s
D) 1980s
Worms spread from
A) computer to computer
B) computer to printer
C) computer to monitor
D) None of these
Code Red made huge headlines in
A) 2010
B) 2000
C) 2005
D) 2001
The Slammer worm which caused mayhem in
A) January 2003
B) March 2003
C) May 2003
D) April 2003
A worm called Storm, which showed up in
A) 2017
B) 2007
C) 2018
D) 2004
Some _____ are designed to be more annoying than malicious or they can cause serious damage by
deleting files and destroying information on your system.
A) E-mail viruses
B) Trojan horse
C) A Virus
D) none of these
Trojan like viruses and worms which reproduce by infecting other files nor do they self-replicate .
A) true
B) false
How to protect your system from virus ?
A) Keep The Operating System Updated
B) Use a Firewall
C) using Anti-virus software
D) All the above
____ system designed to prevent unauthorized access to or from a private network
A) Anti-Virus
B) internet
C) firewall
D) all of these
All messages entering or leaving the intranet pass through the firewall
A) true
B) false
Most hardware firewalls will have a minimum of _____ network ports to connect other computers
A) three
B) two
C) seven
D) four
______ is set of moral principles that regulate the use of computers.
A) Computer viruses
B) Computer network
C) Computer Ethics
D) none of these
___ is a person intensely interested in the arcane and recondite workings of any computer
operating system
A) Hackers
B) Crackers
C) Cyber
D) none of these
____ is one who breaks into or otherwise violates the system integrity of remote machines with
malicious intent .
A) Hackers
B) Crackers
C) Cyber
D) none of these
____ violates computer security for little reason beyond maliciousness or for personal gain
A) A white hat hacker
B) A grey hat hacker
C) A blue hat hacker
D) A black hat hacker
_____ breaks security for non-malicious reasons, perhaps to test their own security system
A) A white hat hacker
B) A grey hat hacker
C) A blue hat hacker
D) A black hat hacker
_____ lies between a black hat and a white hat hacker
A) A white hat hacker
B) A grey hat hacker
C) A blue hat hacker
D) A black hat hacker
____ is someone outside computer security consulting firms who is used to bug-test a system prior to
its launch, looking for exploits so they can be closed
A) A white hat hacker
B) A grey hat hacker
C) A blue hat hacker
D) A black hat hacker
