Microcomputer System

Basics of Microcomputer

Introduction:

• It is hard to imagine the present world of electronics without microcomputer
• Microcomputers are used in cash registers, washing machines, scales ovens, traffic light controllers, etc.
• Microprocessors are introduced in 1971. Intel 8080, Motorola 6800, Z80.
• Microcontrollers are introduced in 1976. Intel 8748 (MCS 48 family).
• In 1980, microcontrollers with advanced features are introduced. Intel 8051 (MCS51 family), Siemens SAB80515.

Microcomputer System:

Microcomputer is defined by two key traits:

• The ability to be programmed to operate on data without human intervention
• The ability to store and retrieve data

Generally, a microcomputer system includes

• Hardware:  Peripheral devices for communicating with human
• Software:  Program that process data.

A microcomputer system contains

• CPU connected to RAM and ROM via address bus, data bus and control bus.
• Interface circuits connect the system buses to peripheral device.

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Related topics:
Microcomputer System Architecture   |   Numbering System   |   Memory Basics   |   Digital Logic   |   ASCII Code   |   Computer Internals   |   ROM and RAM Memory

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List of topics: Microcomputer

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