TOPIC 1 : INTRODUCTION TO COMPUTERS AND COMPUTER SYSTEM

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TOPIC 1 : INTRODUCTION TO COMPUTERS AND COMPUTER SYSTEM by Mind Map: TOPIC 1 :  INTRODUCTION TO COMPUTERS AND COMPUTER SYSTEM

1. Computer Hardware

1.1. Input Device

1.2. Output Device

1.3. Storage Device

1.4. System Unit

1.5. Communication Device

2. Basic Components of the Von Neuman Machine

2.1. Stored Program Concept

2.1.1. Von Neumann Architecture

2.2. Von Nuemann Architecture

2.2.1. Memory

2.2.1.1. Memory : Short-term storage for CPU calculations, Holds both instructions and data of a computer program

2.2.2. Input Devices

2.2.2.1. Input devices: keyboard, mouse, scanner, punch cards

2.2.2.1.1. Output devices: monitor, printer, fax machine

2.2.3. Output devices

2.2.3.1. Storage: hard drive, optical media, diskettes, magnetic tape

2.2.4. Storage

2.2.5. Bus

2.2.5.1. Bus: bundle of wires that carry signals and power between different components

3. Overview and History of Computers

3.1. Generations

3.1.1. Oth 1642-1940 : Mechanical Era

3.1.2. 1st 1940-1955 : Vacuum Tube

3.1.3. 2nd 1955-1965 : Transistor

3.1.4. 3rd 1965-1980 : Intregrated Circuit Based

3.1.5. 4th 1980-present : VLSI microprocessor based

3.1.6. 5th Present-Beyond : ULSI Technology

4. Modern Computer System and Hardware in Brief

4.1. Computer = hardware + software

4.2. Computer Software

4.2.1. System Software

4.2.2. Application Software

4.3. Network and internet

4.4. Types of computer

4.4.1. Supercomputers

4.4.1.1. the fastest, most powerful computers

4.4.2. Mainframe Computers

4.4.2.1. large, expensive, powerful computer

4.4.3. Midrage computers

4.4.3.1. midrange computers or servers are computers with processing capabilities less powerful than a mainframe computer yet more powerful than a personal computer

4.4.4. Personal Computers

4.4.4.1. can perform all of its input, processing, output and storage activities by itself