Topic 1 : Introdution to Computers and Computer System

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Topic 1 : Introdution to Computers and Computer System by Mind Map: Topic 1 : Introdution to Computers and Computer System

1. History of Computers

1.1. 0th Generation - Mechinical Era

1.2. 1st Generation - Vacuum tube (ENIAC)

1.3. 2nd Generation - Transistor

1.4. 3rd Generation - Integrated Circuit Based

1.5. 4th Generation - VLSI microprocessor based

1.6. 5th Generation - ULSI Technology

2. Components of the Von Neumann Machine Principles

2.1. -Data & instruction both stored in main memory while processing

2.2. Sequential

2.3. Binary data processing

2.4. CPU , memory & I/O system

3. Von Neumann Architecture

3.1. -ALU : arithmetic /logic unit

3.2. - CU : control unit

3.3. - Interface unit

3.4. - Memory : short-term storage for CPU

3.5. - Input device : mouse , keyboard , scanner

3.6. - Output device : monitor , printer

3.7. - Storage : hard drive , diskettes

3.8. - Storage : Bundle of wires that carry signals and power between different components

4. Modern Computer System and Hardware in Brief

4.1. What's a computer ?

4.1.1. - electronic device

4.1.2. - instructions store in own memory

4.1.3. - accept data

4.1.4. - process data according to specified rules

4.1.5. - produce results

4.1.6. - store results for future use

4.2. Computer Hardware

4.2.1. -Electric , electronic and mechanical known as hardware

4.3. Computer Software

4.3.1. - A program

4.4. Network

4.4.1. - Devices & computers connected together

4.5. Internet

4.5.1. - Worldwide collection of networks

4.6. Types of computers

4.6.1. - supercomputers

4.6.2. - mainframe computers

4.6.3. -midrange computers

4.6.4. - personal computers