Microprocessor Fundamentals

Last updated on June 3rd, 2022 at 04:19 pm

How does a microcomputer do all kinds of jobs?

The first task is done by an input device, whereas the second job is done by the arithmetic logic unit (ALU). The third task is done by the memory unit while an output device does the fourth job. The fifth job is executed by the timing and control (T&C) unit.

What is a bus?

A bus is a bunch of wires through which data or address or control signals flow.

What are the different buses? And what jobs do they perform in a microprocessor?

The different buses in a microprocessor are the data bus (DB), address bus (AB), and control bus (CB).

Data flows through the DB, while the address comes out of the AB.

And CB controls the activities of the microcomputer system at any instant of time.

Why are the different buses buffered?

A buffer enhances the current or power driving capability of a pin of an IC.

In how many ways computers are divided?

Computers are divided into three categories as per the superiority and number of microprocessors used. These are:

1. Micro computers

2. Mini computers

3. Mainframe computers

Author of this post

This post is co-authored by Professor Saraswati Saha, who is an assistant professor at RCCIIT, a renowned degree engineering college in India. Professor Saha teaches subjects related to digital electronics & microprocessors.