Parts of Computer

Parts of Computer

A computer is an electronic device that performs a given task on the basis of given instructions. Data and instructions are given to the computer through its input device, such as a keyboard. When data is processed by the computer on the basis of given set of instructions, it gives the result called output or information.
The given data is processed by the processing unit and then result i sent on output unit. 
A computer is a system of many parts working together. Let us discuss different Parts of Computer System.

System Unit

The System Unit is the Central Parts of Computer System. Typically it's a rectangular box placed on or underneath your desk. Inside this box, there are many electronic components that process information. The most important of these components is the central processing unit (CPU), or microprocessor, which acts as the"brain" of your computer. Another component is random access memory (RAM), which temporarily stores information that the CPU uses while the Computer is turned off.
Almost every other Parts of Computer connects to the System unit using cables. The cables plug into specific ports (openings), located on the back of the system unit. Hardware that is not a part of the system unit is called peripheral device such as a keyboard or mouse.

  • Motherboard: The motherboard is a main circuit board of a Personal Computer (PC). It is also known as the mainboard or system board.
  • CPU: The CPU is an electronic chip that determines the processing power of the computer.
    Parts of Computer
  • Memory: Memory is a Parts of Computer that temporarily stores applications, documents, and operating information.
    Parts of Computer
  • Bus: A bus is an electronic line (a set of wires) that carries data and instructions from one place to another in the form of 0s (zeroes) and 1s (ones). 
    Parts of Computer
  • Expansion Slots: Expansions slots are sockets into which adapters are connected.
    Parts of Computer
  • Ports or Connectors: A port is a connector located on the motherboard or on a separate adapter.
    Parts of Computer
  • Bays: A bay is a space inside the computer case where a hard drive, floppy drive and CD-ROM drive sits.
    Parts of Computer
  • Power Supply: It changes normal household electricity into electricity that a computer can use.
    Parts of Computer
  • Sound Card: A sound card enables a computer to play and record high quality sound.
    Parts of Computer

Hard Disk Drive

The Hard Disk Drive is normally located inside the system unit A Personal Computer's hard disk drive stores information on a hard disk. Because hard disks can store a huge amount of data and information, they are generally used as primary means of storage.
These are main Parts of computer.
Parts of Computer

CD and DVD Drives

Most of the Parts of Computers today come equipped with a CD or DVD drive, usually located on the front of the system unit. 
CD drives use lasers to read (retrieve) data from a CD, and many CD drives can also write (record) data onto CDs. If you have a recordable disk drive, you can also use a CD drive to play music CDs on your computer.
Parts of Computer

DVD drives can do everything that CD drives can. They can also read DVDs. If you have a DVD drive, you can watch movies on your computer. Many DVD drives can record data onto blank DVDs.
Parts of Computer

Floppy Disk Drive

Floppy disk drives are used to store information on floppy disks. They are also known as Floppies or diskettes. Parts of Computer In comparison to CDs and DVDs, floppy disks can store only a small amount of data. They also retrieve information more slowly and are more prone to damage. For these reasons, nowadays the use of floppy disks is almost obsolete.
Parts of Computer


A mouse is a small device used to point out and select items on your computer screen. Mice (the plural of mouse) come in many shapes. It is connected to the system unit by a long wire that resembles a tail. Some never mice have been introduced with wireless technology are therefore, wireless Parts of Computer
   A mouse usually has two buttons: a primary button (usually the left button) and a secondary button. Many mice also have a wheel between, which enables you to scroll smoothly through screens for information.
Parts of Computer


A keyboard is used mainly for typing data, instructions/commands into your computer. A keyboard resembles the keyboard of a typewriter. It has keys for letters and numbers and additionally, it also has some special keys:
  • The function keys, found on the top row, perform different functions depending on where they are used.
  • The numeric keypad, located on the right side of most keyboards, allows you to enter number quickly.
  • The navigation keys, such as the arrow keys, allow you to move your position within a document or a webpage.
    Parts of Computer


A monitor resembles a TV screen that displays the information in visual form. The portion of the monitor that displays the information is called the screen. Like a television screen can show still or moving pictures.
There are two basic types of monitors: CRT (cathode ray tube) monitors and LCD (liquid crystal display) monitors. Both types produce sharp images, but LCD monitors are much thinner and lighter.

Parts of Computer
LCD Monitor
Parts of Computer
CRT Monitor


A printer transmits data from a computer onto the paper. you do not need a printer to use your computer, but if you have a printer connected to your computer, you can print e-mail, cards, invitations, photos, and other types of documents.
The Two main types of printers are inkjet printers and laser printers.  
Parts of Computer


Speakers are used to play sound. They may be built into the system unit or connected with cables. Speakers facilitate you to music and hear sound effects form your computer.These are Optional Parts of Computer.
Parts of Computer


These are the Parts of Computer Uses in Computer System. Many are types of computer are all these used in computer.

Full Article on Parts of Computer Thank You for read the article Hope All doubts are clear for this topic if this post is helpful share on social media sites to help other guys.

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