Fundamental terminologies

Fundamental terminologies-

Hello friends,

today I am going to tell you about Fundamental terminologies in very detail, so let's start

what is computer?

computer is an electronic device that takes input, process it and gives output.

difference between electronic and electrical device

Electronic Device: it is a device which has very low amount of current and

Electrical Device: it is a device which has very high current and human cannot touch easily is know as

binary system

There is nothing like 0 and 1 in computer.

There is no physical significant of 0 and 1.

Any information can be encoded as a sequence of 0 and 1.

hard disk

for example: in hard disk, head store information in magnetic material in the hard disk and form north and south pole.

If it make north pole below then it will be 1 and it make north pole above then it will be 0.

RAM

In Ram: There are many

In capacitors there will be charge and if capacitors have charge then it will be 1 and capacitors have no charge then it will be o.

Hard disk store information permanently but ram can not store information permanently so, ram is also called volatile memory.

what is hardware?

Hardware is a comprehensive term for all of the physical parts of a computer as distinguished

from the data it contains or operates on, and the software that provides instructions for the

hardware to accomplish tasks.

hardware is anything which is tangible.

For example: monitor, keyboard, mouse, printer, scanner, hard disk, ram, processor.

what is file?

File is a data bundle and it is stored in hard disk.

some example of file name

track01.
dscl.
sum.

some extension

what is software?

Sometimes abbreviated as of perform tasks. Without software, most computers

would be useless. For example, without your Internet page. Without an The picture

shows a Microsoft Excel box, an example of a spreadsheet software program.

There are two type of software:

Application software

system software

System software

computer's hardware and application programs. If we think of the computer

between the hardware and user applications.

Set of instruction is known as program.

Active state of a program is called process.

It is a system software

Examples: DOS, window XP,

It provides interface between user and machine

Acts as a manager of the computer system

It does process management, memory management, file management.

hope this will help you

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