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What is computer


 Introduction of computer

The Computer was first developed in the 1940s. These Computers were a large machine that occupied entire rooms and was operated by Teams and People. The Computer these days are advanced machines their size has reduced and their computing power has increased.









What is computer
Main parts of computer




Definition of computer
The Computer is an ELECTRONIC device that takes data and instruction, store desired result according to instructions. It's a combination of Hardware and Software.

Hardware

Hardware represents the Physical and Tangible components of a Computer.
e.g.- External components like Keyboard, Mouse, Printer, Plotter and etc.

Software

The terms of Software means a Collection of Program. A program is a set of logical instructions. This is required to accomplish a particular task.
e.g.- Ms-Office, Google Analytics, Adobe Photoshop and etc.


Full-Form of computer

C- Computer
O- Operating
M- Machine
P- Particularly
U- Used for
T- Trade
E- Education
R- Research

Main Parts of computer


  1.       Central Processing Unit (CPU)
  2. Mouse
  3. Keyboard
  4. Web Camera
  5. Monitor
  6. Speaker
  7. Scanner
  8. Printer
  9. Pendrive
  10. Lightpen
  11. Joysticks
  12. Uninterruptible Power Supply (UPS) and etc.




Fundamental steps of a computer



What is computer
Fundamental steps of computer



The device of computers

We can make a Computer structure with the help of devices. The device is a physical part of a computer and it’s called Hardware.

 Classification of computer devices


S. No.
Devices
Input
Processing
Output
Communication
Storage
1
Keyboard
CPU
Monitor
USB Port
Hard Disk
2
Mouse
GPU
Printer
Com Port
Pen Drive
3
Scanner
Motherboard
Plotter
WebCam
SD Card
4
Joysticks
RAM
Speakers
Modem
Floppy Disk
5
Microphone
Network Card
Projector
Network Interface Card
Super Disk



Main Input Device

An input device is necessary to convert our information into a form which can be understood by a computer. Or those devices take the data & instruction.
e.g.- Keyboard, Mouse, Scanner, Light pen and etc.

Main Output Device

The output device helps the computer to communicate with as by converting the electrical signals to human-understandable form. Or convert the data and human-readable form.
e.g. – Monitor, Printer, Plotter, Speaker, and etc.

Processing Device

This is the Brain of The Computer. It consists of the CPU, RAM, and Other devices.

Communication Device

These devices communicate with other external devices, such as Input or Output devices.


Storage Device

The device on which data is stored is called a storage device. Commonly used storage devices are Hard disk, CD, and Pen drives.


Types of Output

It follows Two type-
  1. Soft Copy Output
  2. Hard Copy Output

Soft Copy Output

The output on the Monitor in working time is called Soft Copy Output.
e.g.- Text, Images, Clips and etc.

Hard Copy Output

The output on paper which is produced by printer and plotter is called Hard Copy Output.
e.g.- Text, Images, Shapes and etc. 

 Remark

  •  Father of a Computer – CHARLES BABBAGE.
  •  First Computer – ENIAC

E – Electronic
N – Numerical
I – Integration
A – And
C – Computer
  •  Supercomputer PARAM 8000 is made by INDIA in The July 1, 1991.
  •  First Internet name is ARPANET.
  •  Founder of the Internet is Robert E Kahn and Vint Cerf. But the Internet is not developed by Two persons.
  •  Raw Facts are known as Data (e.g.- 50).
  • The first user of the Internet is TIM VERRUNSLEE.


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