who, according to you right, is right? the quarrel poem class 7
Answers
Answer:
Ques-1 How does a computer work?
Ans- A computer is a machine that has become an integral part of our everyday lives.
It works by the following steps:
DATA
INPUT
PROCESSING
OUTPUT
INFORMATION
Collection of raw
data and program
By computer Processed and
organised data
Set of instructions Storing data for
future usage
Ques-2 What is a mouse used for?
Ans- Mouse is a pointing device . It is used for moving the pointer on the screen and it allows to enter
instructions by clicking.
Ques-3 State two differences between RAM and ROM.
Ans- RAM- Ram stands for Random Access Memory. It is volatile in the sense that it temporarily holds
data and instructions that is needed shortly by CPU. Whenever the computer is powered off,
the content of the RAM is lost.
ROM- It stands for Real Only Memory. These are non volatile memories. Thus data stored is
permanent, even when power is not there. ROMs are used to store micro programs made by
manufacturer in the ROM and are also called Firmware.
Ques-4 What do you understand by Hardware and Software?
Ans- HARDWARE- It refers to all physical components of the computer, which includes the various
electronic components as Monitors, Keyboard ,Mouse, Printers etc.
SOFTWARE- It is a set of programs that enables the computer to do certain task. Without software
the hardware parts of computer cannot do anything.
Ques-5 Write note on types of software.
Ans- There are two types of software.
(1) System software (2) Application software
SYSTEM SOFTWARE- The software (set of programs) controls all the operations of a computer
system. Operating system is a part of system software that makes the computer run.
Operating system is a program which controls the working of hardware as well as the
software.
APPLICATION SOFTWARE- It is designed for specific application is called application software.It
helps the user as a tool to do a particular type of job.
Example- MS Office, Graphics software etc.
Explanation: