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WorksheetsTopic 1 Introduction to Computer System
Total questions: 40
Worksheet time: 20mins
What kind of device is a keyboard?
Internal device
Input device
Output device
Storage device
Which of the following is an output device?
DVD-ROM
Touchpad
Hard drive
Printer
What is the main circuit board inside the computer called?
CD-ROM
Video card
ROM
Mother board
Which of the following would hold the most information?
500 megabytes
5 gigabytes
5,000,000 bytes
50,000,000 kilobytes
Eric’s computer slows down when he opens several computer programs. Why does this happen?
Eric has limited RAM space
Eric has a small hard drive
Eric does not have a powerful video card
Eric has a bad ROM
Joe’s computer crashed and now he is looking for a replacement. Which of the following criteria is the least important?
RAM
Money
Color
Usage
A computer is an electronic machine, which under the control of a program to ___.
makes mathematical calculations
accepts Input,
Processes that Input and Outputs the relevant information
transfers data
stores information
An example of an input device is a
speaker
monitor
printer
microphone
The motherboard...
is the brain of the computer system
assembles all the components of a computer system
is a very common storage device
is volatile
CPU stands for
Central Processing Unit
Central Performance Unit
Control Performance Utility
Core Processing Unit
RAM stands for
Random Access Memory
Random Application Memory
Read Address Memory
Retrievable Application Memory
RAM is volatile. In other words...
its contents will disappear once the computer is turned off
it is fragile and will be damaged very easily
its stores information permanently
its contents will disappear every few minutes
Storage Devices (or Secondary Storage Devices) are required to
store programs and data temporarily
to transfer data to the CPU
store programs and data permanently
ensure that data flows correctly throughout the computer system
Devices that receive information from the computer and present it to the user in different forms, including audio, visual, and hard copy media are called...
audio-visual devices
binary devices
input devices
output devices
Name the volatile memory?
ROM
PROM
RAM
EPROM
Identify the output device
Keyboard
Memory
Monitor
Mouse
____is information that a user physically enters into a computer by pressing a key on a keyboard, clicking a mouse, tapping a touch screen, pushing a button on a game controller, speaking into a microphone, etc.
Input
Output
Storage
Processing
____is the operations performed by a computer to retrieve, transform, or classify information.
Input
Output
Storage
Processing
____is information that a computer returns to a user such as images on a screen, sounds from speakers, and printed pages.
Input
Output
Storage
Processing
____is the saving of information on memory chips, discs, or other storage media by a computer for later use.
Input
Output
Storage
Processing
A mobile phone that functions as a computer and allows users to access the internet.
World Wide Web
Microchip
Smartphone
Supercomputers
The fastest, most powerful computers that exist at a given time. These computers have processing capabilities designed to solve problems that are too complex for regular computers. They play vital roles in the advancement of national defense, science, and social change.
World Wide Web
Microchip
Smartphone
Supercomputers
Occurs when the Central Processing Unit (CPU) retrieves the information from RAM and manipulates it according to instructions from an application.
Data Processing
output
storage
processing
Which of the following is not a four basic component of a computer?
input
output
processing
RAM
storage
A ________ is an electronic device that has the capability to manipulate information or data, store, retrieve, and process it for more useful information.
computer
system unit
internal storage
software
_________ is a program or a set of instructions that tells the computer what to do.
Computer
System unit
Internal storage
Software
A device are installed inside the system unit or inside a laptop or mini laptop.
application software
system software
internal storage
external storage
It is small and designed for an individual user.
Personal Computer
Laptop Computer
Netbook
Desktop
It is a common term used to describe a general type of personal computer that is not portable and often placed on or at someone home or office desk.
Personal Computer
Laptop Computer
Netbook
Desktop
It is the main body of a desktop computer which is typically consisting of a metal or plastic enclosure containing all the essential parts of the personal computer.
System Unit
Monitor
Mouse
Keyboard
Also known as pointing device whose function is to detect two-dimensional motion relative to its supporting surface.
System Unit
Monitor
Mouse
Keyboard
It is an input device, designed just like a typewriter keyboard. It is one of the primary ways we communicate with the computer and enter data.
System Unit
Monitor
Mouse
Keyboard
What does ASCII stand for?
Australian Standard Code for Information Interchange
Aberdonian Standard Code for Information Interchange
American Standard Code for Information Interchange
African Standard Code for Information Interchange
What is ASCII used for?
Storing text
Storing sounds
Storing images
Storing video
What is a character?
A single key on the keyboard or a single number, letter or punctuation symbol
A person who works as a computer programmer
A 1 or a 0
The part that an actor plays
What does ASCII do?
Converts images into binary
Converts sound into binary
Converts text into binary
Converts the typed language into American English
Which is not an Information Coding Scheme?
ASCII
EBCIDIC
UNICODE
EBCDIC
Which is true about Unicode?
uses 16 bits to represent a character
uses 8 bits to represent a character
uses 7 bits to represent a character
uses 256 bits to represent a character
Which is true about ASCII?
uses 8 bits to represent a character
uses 7 bits to represent a character
uses 16 bits to represent a character
uses 256 bits to represent a character
Which coding scheme is best used in personal computers which can represent the characters of all languages in the world.?
EBCDIC
UNICODE
ASCII
BINARY
