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Computer – Inside the System Unit Class 4 Computer Worksheet
1) Answer the following questions (25)
a) What are the main components of a computer? (2)
b) What are the main components of motherboard? (1)
c) Write the function of motherboard. (2)
d) What CPU stands for? (1)
e) By which unit the speed of CPU is measured? (1)
f) By which unit memory of the computer is measured? (1)
g) What RAM stands for? (1)
h) What is the function of RAM? (1)
i) Why ROM is called volatile memory? (1)
j) What is a peripheral device? Give example. (2)
k) What ROM stands for? (1)
l) What is the function of disk devices? Give some examples. (2)
m) What SMPS stands for? What is the function of it? (2)
n) Name the types of computer ports. (4)
o) What HDMI stands for? (1)
p) What VGA stands for? (1)
q) Which type of port is used to connect computer with power supply? (1)
2) Fill in the blanks (10)
a) Motherboard is also known as _____ board.
b) CPU is also called ______ .
c) For permanent saving ______ type memory is used.
d) The speed of CPU is measured in _______ .
e) _______ device is used to expand computer’s capabilities.
f) _______ is called the Brain of the computer.
g) _______ is called the spine of the computer.
h) _______ stores data temporarily.
i) ________ stores data permanently.
j) ________ port is used to connect to internet.
3) Write true or false (5)
a) Latest motherboards doesn’t need adapter card.
b) Power port is used for internet connection.
c) Ram is volatile memory.
d) Monitor is called the spine of the computer.
e) Processor is called the Brain of the computer.
Answer
1) Answer the following questions (25)
a) What are the main components of a computer? (2)
Answer –The main components of a computer are,
Motherboard
CPU
Memory
Disk drives
Power supply
Ports
b) What are the main components of motherboard? (1)
Answer –The main components of motherboard are
Processor
Main memory
c) Write the function of motherboard. (2)
Answer – The function of motherboard is
Contains processor which is the brain of the computer.
Provides connection to external devices.
d) What CPU stands for? (1)
Answer – CPU stands for Central Processing Unit.
e) By which unit the speed of CPU is measured? (1)
Answer – The speed of CPU is measured by megahertz or gigahertz.
f) By which unit memory of the computer is measured? (1)
Answer – Computer memory is measured with bits and bytes.
g) What RAM stands for? (1)
Answer – RAM stands for Random Access memory.
h) What is the function of RAM? (1)
Answer –RAM stores the data temporarily in computer.
i) Why RAM is called volatile memory? (1)
Answer – RAM is called volatile memory because it stores the data temporarily till the computer is running. If you switch off the computer all the data would be gone.
j) What is a peripheral device? Give example. (2)
Answer –Peripheral device is a device which is connected to the computer to expand its capabilities.
k) What ROM stands for? (1)
Answer – ROM stands for Read Only Memory.
l) What is the function of disk devices? Give some examples. (2)
Answer – The function of disk devices are,
Read information.
Store data, information and instructions for future use.
m) What SMPS stands for? What is the function of it? (2)
Answer –SMPS stands for Switched Mode Power Supply.
It’s function is to supply power in a computer.
n) Name the types of computer ports. (4)
Answer – Different types of computer ports are,
Display port – This port connects the monitor to the computer. There are different types of display port such as VGA, HDMI etc.
Audio port – This port is used to connect microphone, speakers.
Network port – this port is used to connect to internet.
Power port –This port connects the computer to the power supply.
o) What HDMI stands for? (1)
Answer – HDMI stands for High Definition Multimedia Interface.
p) What VGA stands for? (1)
Answer – VGA stands for Video Graphics Array.
q) Which type of port is used to connect computer with power supply? (1)
Answer – Power port is used to connect computer with power supply.
2) Fill in the blanks (10)
- Motherboard is also known as system
- CPU is also called processor.
- For permanent saving ROM type memory is used.
- The speed of CPU is measured in megaherz or gigahertz.
- Peripheraldevice is used to expand computer’s capabilities.
- Processoris called the Brain of the computer.
- Keyboard called the spine of the computer.
- RAM stores data temporarily.
- ROM stores data permanently.
- Network port is used to connect to internet.
3) Write true or false (5)
a) Latest motherboards doesn’t need adapter card.
Answer – True
b) Power port is used for internet connection.
Answer – False
c) RAM is volatile memory.
Answer – True
d) Monitor is called the spine of the computer.
Answer – False
e) Processor is called the Brain of the computer.
Answer – True