Question

Simple question.
What is a computer?​

Answer 1

Answer:

A computer is a device that takes information (input) and gives out the output.

A computer has two categories :

• Hardware: computer's processor, memory, storage, communication ports and peripheral devices

• Software: Includes operating system (OS) and software applications

now we will talk about different types of computer:

• supercomputers: they are very fast and best computers still now

• mainframe computers: these are also good computers which can support upto thousand users

• minicomputers: these are small machines and are good

• microcomputers: these are widely used and fastest growing computers

in a computer there are three types of os, they are:

• microsoft windows

• mac

• linux

in a computer there are many parts ,they are:

• monitor (output devices)

• cpu  (input and output device)

• keyboard (input device)

• mouse (input device)

• speakers (output device)

• printers (output device)

functions of all parts in a computer:

1. CPU- it is known as the central processing unit. it is the head and heart of the computer.
2. monitor- it is an output device where the user can read all the output.
3. mouse- it is an input device used to point the cursor onto a particular thing
4. keyboard- it is an input device with which we can type all the alphabets and numerals.
5. speakers-it is an output device with which we can hear the audio output.
6. printers- it is an output device used to print pages and scan documents.

examples of window os:

1. ms-dos
2. Windows 1.0 - 2.0
3. Windows 3.0 – 3.1
4. Windows 95
5. Windows 98
6. Windows ME - Millennium Edition
7. Windows NT 31. - 4.0
8. Windows 2000
9. Windows XP
10. Windows Vista
11. Windows 7
12. Windows 8
13. Windows 10
14. Windows Server
15. Windows Home Server
16. Windows CE
17. Windows Mobile
18. Windows Phone 7-10