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What is the system unit of a PC and what major parts does it contain?

Explain the terms: computer bus, adapter, port and expansion slot.

What is a server? Mention its main functions.

Briefly describe the functions of processor, memory and I/O devices of a microcomputer.

Distinguish between PC and PC clone.

What are I/O devices? List common I/O devices.

What is a program? Distinguish between system program and application program.

List the basic parts of a microcomputer and show how they fit together.

Draw the block representation of a decade or decimal counter and give its count table.

Name the four possible modes of shift registers and show their operation with the help of illustrations.