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.
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| 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
- Central Processing Unit (CPU)
- Mouse
- Keyboard
- Web Camera
- Monitor
- Speaker
- Scanner
- Printer
- Pendrive
- Lightpen
- Joysticks
- Uninterruptible Power Supply (UPS) and etc.
Fundamental steps of a computer
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| 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-
- Soft Copy Output
- 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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