Unit I : Evaluation of Computer System
Computers have become a vital part of our life. This Chapter introduces you to the computer and the way computer works. Different parts of the computer and how they work is also covered in this chapter.
Unit II : Hard Disk Drive
Unit III : Optical Media
Unit IV : Processor
Unit V : Hardware & Networking
A computer is an electronic device which receives input such as text, images and numbers; process the data as per instructions and generates an output. Broadly speaking the computer performs four tasks : input, processing, output and storage.
The term input means sending data and instructions to the computer