Operating System


What is software

It is collection of computer program and related data that instructs the computer what do do and how do do it. software is a general term of th evarios kind of program used to operate computers and related device.

The role of operation

he operating system underpins the entire operation of the modern computer.

Abstraction of hardware

The fundamental operation of the operating system (OS) is to abstract the hardware to the programmer and user. The operating system provides generic interfaces to services provided by the underlying hardware.

In a world without operating systems, every programmer would need to know the most intimate details of the underlying hardware to get anything to run. Worse still, their programs would not run on other hardware, even if that hardware has only slight differences.

Types of software

  • Computer games.
  • Spreadsheets.
  • Word processor.
  • Databases.
  • Internet Browsers


In computing, an interface is a shared boundary across which two separate components of computer system exchange information. The exchange can be between software, computer hardware, peripheral devices, humans and combinations of these. Some computer hardware devices such as a touch screen can both send and receive data through the interface, while others such as a mouse, microphone or joystick are one way only.