Computer Systems

1. Mother Board- A motherboard is the central or primary circuit board making up a complex electronic system, such as a modern computer.

2. CPU- is A central processing unit (CPU), or sometimes simply processor, is the component in a digital computer that interprets computer program instructions and processes data.

3.Power Supply- A computer power supply unit (Computer PSU), or Modular Power Supply Unit (MPS) is the component that supplies power to a computer.

4.Video Display Controller- that produces the output for the computer display. This will either be built into the motherboard or attached in its own separate slot (PCI, PCI-E or AGP), requiring a Graphics Card.

5. Keyboard- A computer keyboard is a peripheral partially modelled after the typewriter keyboard. Keyboards are designed for the input of text and characters and also to control the operation of a computer.

6. Mouse- In computing, a mouse (plural mice or mouses) functions as a pointing device by detecting two-dimensional motion relative to its supporting surface. Physically, a mouse consists of a small case, held under one of the user's hands, with one or more buttons. It sometimes features other elements, such as "wheels", which allow the user to perform various system-dependent operations, or extra buttons or features can add more control or dimensional input. The mouse's motion typically translates into the motion of a pointer on a display.

7. Application Software- Application software is a subclass of computer software that employs the capabilities of a computer directly to a task that the user wishes to perform. This should be contrasted with system software which is involved in integrating a computer's various capabilities, but typically does not directly apply them in the performance of tasks that benefit the user. In this context the term application refers to both the application software and its implementation.