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While many students search for "free PDF" versions online, it is important to remember that supporting the publishers ensures you get the most accurate and up-to-date information. If you are on a budget, look for:

In-depth shortcuts and functions for MS Word, Excel, and PowerPoint.

Every chapter ends with a set of "Check Your Progress" questions based on actual exam patterns.

Number systems (Binary, Octal, Hexadecimal) and ASCII codes.

Viruses, malware, firewalls, and cryptography. How to Prepare Using the Computer Awareness Guide