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A computer is a general purpose device that can be to carry out a set of arithmetic or logical operations automatically. In this app you will find basic concepts of Computer. Though I created this according to the syllabus of Diploma I Year but it is also useful for other users and particularly for competitive exams.
In this app -
1. Components of computer system
2. Input and output devices
3. Operating system
4. Windows XP
5. Internet
6. Virus
