Computer software can be divided into two categories namely system software and application software. Internal operations are controlled by some software. Such software is called system software. Example, compilers, operating system, interpreters, etc. The software which helps to carry out a particular application is called application software. Example, MS Excel, MS Word, etc.
Types of the operating system:
- Single user OS – Allows only one person to use at a time. Also, only one program can be loaded and executed at a time.
- Multi-user OS – Two or more than two people can use at a time. Example, Windows, Linux, etc.
- Real-time OS – As soon as an input is given it will respond instantly. It is used in communication and flight control system.
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