Hello Students, welcome to Net Explanations. On this page we have posted some Computer and it’s Components Class 3 Computer Worksheet Extra Questions Answers.
Computer and it’s Components Class 3 Computer – Worksheet
1) Answer the following questions (40)
a) From where the word computer comes from? (1)
b) What is a system? (1)
c) How computer works? (3)
d) What do you mean by Data, Process and Information? (3)
e) Write the characteristics of computer. (5)
f) What is hardware? What are the basic components of hardware? (3)
g) What is the function of Computer case? (1)
h) What is input and input device? Give examples. (3)
i) What CPU stands for? Write the function of CPU. (2)
j) Which part of computer is called the Brain of the computer? (1)
k) What is output device? Give example. (2)
l) What is Storage devices? Give example. (2)
m) What are types of software? (1)
n) What is Operating system? Give example.(3)
o) Which company developed Windows? (1)
p) Which company developed Mac OS? (1)
q) Who developed Linux? (1)
r) What is application software? Give example. (2)
s) What are Microsoft Excel, Microsoft Word and Microsoft Paint? (3)
t) What is open source? (1)
Answer
1) Answer the following questions (40)
a) From where the word computer comes from? (1)
Answer – The word computer comes from what term ‘compete’. Which means to count or calculate.
b) What is a system? (1)
Answer – A system is a combination of different components which work together to achieve a common task.
c) How computer works? (3)
Answer – Computer works by,
Computer first receives data in the form of input form the user.
Then it processes the data as instructed.
After the competition of processing it shows the results in the form of output.
d) What do you mean by Data, Process and Information? (3)
Answer –
Date is a collection of raw, unorganized facts which can include words, numbers, sounds and images.
Process is the function of the computer which converts data into meaningful information.
Information is the organized and meaningful form of data.
e) Write the characteristics of computer. (5)
Answer –The characteristics of computer are,
Computers work very fast.
It can do large numbers of calculations in a second.
It has a large amount of storage capacity, it can store large amount of work for future use.
Computer can do different types of work. In different places computer is used for different purposes.
Computer is very accurate. It never does mistakes on its own.
It can work tirelessly. It can do same work over and over again without the need of resting.
f) What is hardware? What are the basic components of hardware? (3)
Answer –Hardware is the collective component of the computer consisting all the physical equipment.
The basic components of hardware are System Unit, Input Devices, Processing Device, Output Devices and Storage Devices.
g) What is the function of Computer case? (1)
Answer –The function of Computer case is to protect the internal electronic components from damage.
h) What is input and input device? Give examples. (3)
Answer –Input it the data or instruction we enter into the computer.
Input device is the component which helps us to enter the input into the computer.
Example – Keyboard, Mouse, Scanner, Joystick etc.
i) What CPU stands for? Write the function of CPU. (2)
Answer –CPU stands for Central Processing Unit.
The function of CPU is to process the data and convert into organized and meaningful data or information.
j) Which part of computer is called the Brain of the computer? (1)
Answer – CPU is called the Brain of the computer.
k) What is output device? Give example. (2)
Answer – Output Devices are the components which shows the final result or information as an output.
Example – Monitor, Printer, Speakers etc.
l) What are storage devices? Give example. (2)
Answer – Storage Devices are the components of computer which stores data, instructions and information for future use.
Example – Hard disk, Compact disc, Pen drive etc.
m) What are types of software? (1)
Answer – There are two types of software. They are,
System software
Application software
n) What is Operating system? Give example. (3)
Answer –Operating system is a type of system software. This is the first software that gets installed in a computer. It is a bridge between the user and computer. This coordinates all the activities in the computer.
Example – Windows OS, Linux etc.
o) Which company developed Windows? (1)
Answer – Microsoft company developed Windows OS.
p) Which company developed Mac OS? (1)
Answer – Mac OS was developed by Apple Inc.
q) Who developed Linux? (1)
Answer – Linux was developed by Linux Torvalds.
r) What is application software? Give example. (2)
Answer –Application software is a kind of software which performs specific type of tasks.
Example – MS Paint, MS Word etc.
s) What are Microsoft Excel, Microsoft Word and Microsoft Paint? (3)
Answer –
Microsoft Excel –This application software helps us to perform calculations and store all the data in rows and columns.
Microsoft Word –It helps us to create documents easily.
Microsoft Paint – With this application software we can draw on computer.
t) What is open source? (1)
Answer – Open source means the software which is available to everyone, free of cost and anyone can modify it.