Cabinet :-
A computer Cabinet is an enclosure with fitted fixed or removable side panels and doors. The Cabinet a computer rack for mounting computer are other electronic equipment. Cabinets come in fans to facilitate cooling and minimize recycled and bypass airflow.
Monitor- Monitor is an output device of computer. This is used to display a wide variety of information such as text graphics, video, animation, icon etc.
There are two types of Monitor also known as video display unit. It
a. CRT (Cathode Rey Tube)
b. LCD (Liquid Cristal display)
Keyboard :-
Keyboard the is an input device of computer keyboard is the basic device through which you input information in to the system using the keyboard is easy become most of them have the typewriter setup the keyboard has a number keyboard through which you can input number. It has keys like home page up page down, insert, delete, end, control, and escape (esc).
Mouse :-
The mouse is an input device of computer it is also know pointer device that control a curser in a GUI and can move and select text, I can see file and folder.
Printer :-
Printer is an output device of computer which print document, picture, spear sheet, record etc. Print hard copy print quality print measured in dot per inch.
There are many types of printer today the most common printers used with a computer are inkjet printer and lesser printer.
1. Inkjet printer :-
The most powerful for home computer user that prints by spraying streams of quick drying ink on paper the ink is stored in disposable ink and ten a separate cartridge is used for each of the major color.
As – Red, Green, Blue.
2. Lesser printer :-
The lesser printer was first developed and xerospare by grey stark weather and released in 1971. That utilize lesser technology to print Image and the paper lesser printer are often use for School, and other environment that require. Print jobs to be completed quickly and enlarge quantities.
Scanner :-
A scanner is an external device used to record data on the computer. The data can induct photographs, books pages and other image early on a piece of paper the scanner in like a copy machine.
Joystick :-
This is a computer of input device which especially helpful playing computer games. It consists of a handle that can be pointed in different direction. It can be used to control the object display on the computer screen.
CPU :-
This is also known the brain of the computer this is a single chip that are located at the heart of a computer that enable is process data.
There are two types of CPU
a. ALU
b. CU
a. ALU :-
All stand for arithmetical logic unit. ALU perform two types of function.
i. Arithmetic-
In arithmetic operation include addition +, Subtraction -, Multiple, Division.
ii. Logical :-
All logical operation include such as compression of number.
Example- <,>
CU :-
Cu stand for control unit (CU) manage the input and output storage device the control until pass of computer.
RAM-
RAM stand for Random access memory. This is access randomly that is any byte of memory can be accessed without touching. RAM is the most common type of memory find in computer. RAM is also known volatile memory. This memory generally lesser its contents when you switch off the computer.
ROM :-
ROM stand for read only memory. ROM designed to hold permanently stored program installed by the computer manufacture. The CPU can only read the instruction from ROM. It cannot ears on change the contents of ROM.
SMPS :-
SMPS stand for switch mode power supply SMPS is a power supply that uses a regulator to Control and stabilizer the output voltage switching the load currant on and off. Their power supplies’ offer a greater power conversion and reside the overall power lass.
UPS :-
UPS stand for uninterruptible power supply that is keep with computer. It is used to safe and operational. As UPS is provides battery to an in adequate voltage or if it stops.
Hard disk drive (HDD) :-
Hard disk is a secondary memory of computer. It is a magnetic disk on which you can store computer data. Hard disk hold more data and are faster than floppy disk now a days hard disk with capacity of 320 GB to 500 GB are very common.
Floppy Disk drive (FDD) :-
Floppy disk is a secondary memory of computer. It is a magnetic disk Floppy disk are portable because they can easily be carried from one place to another place. Disk drive for floppy disk are called floppy drive. Floppy disk are slower to access then hard disk and have lass capacity storage.
Mother board :-
Mother board is a most important part of computer. That contact all circuits. It is hold and allow communication between many of crucial electronic components of a system such us the central processing Unit, memory and provides connectors for other peripheral.
Track Ball :-
Track ball is an input device of computer. This is basically a mouse lying on its back to move pointer you rotate the ball with your thumb, your finger on the palm of your hand. There are usually one to three Buttons next to the ball which you use just like mouse button.