Introduction to Computer & Computer System

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Introduction to Computer & Computer System by Mind Map: Introduction to Computer & Computer System

1. 1) History Of Computers

1.1. 0TH GENERATION Mechanical Era

1.2. 1ST GENERATION Vacuum Tube ( Bulky, expensive) Types of computers ( ENIAC,EDVAS,IAS,UNIVAC)

1.3. 2ND GENERATION Transistor ( Less heat) Computer ( Smaller, faster , cheaper ) Types of Computers ( IBM 1620 , IBM 7094 )

1.4. 3RD GENERATION Integrated Circuit based Computer ( smaller,less heat ) Types of computers ( IBM-360 series, PDP )

1.5. 4TH GENERATION VLSI microprocessor based Computer ( smaller, more powerful ) Types of computers ( DEC 10 , STAR 1000 , PDP 11 )

1.6. 5TH GENERATION ULSI Technology Artificial Intelligence ( nano- technology ) Age of connectivity ( connect all the world computer ) Types of computers ( Desktop,laptop)

2. 2) Basic components of the Von Neumann Machine

2.1. Program Concept John Von Neuman ( expert physical science and mathematics ) ENIAC project

2.1.1. The principles Data & instructions stored in main memory Sequential processing

2.2. Central processing unit ( CPU )

2.2.1. ALU : Arithmetic/ logic unit perform arithmetic and boolean calculations

2.2.1.1. CU : control processing instructions and movement data within CPU

2.2.1.1.1. Interface unit : Moves instructions data betwwen CPU and other hardware

2.3. Memory : Holds both instructions and data

2.3.1. Input : keyboard, mouse , scanner

2.3.1.1. Output : monitor, printer

2.3.1.1.1. Storage : hard drive , magnetic tape

3. 3) Computers

3.1. Computer is electronic device , can accept data , produce result and store the result for future.

3.2. Components of computer

3.2.1. Can create information ( input, output, storage , processing devices)

3.2.2. Called a program and purpose convert data to useful information.

3.3. Computer Software

3.3.1. Software also called a program that tells computer what tasks to perform and how to perform.

3.4. Types of computer

3.4.1. 1) Supercomputers that faster, most powerful computer

3.4.2. 2) Mainframe computers is a large, expensive , powerful computer that can handle hundreds or thousands connected users.

3.4.3. 3)Midrange computers or servers are computers with processing capabilities less powerful then mainframe. -Control access hardware , software, other resources.

3.4.4. 4) Personal computer can perform its inpiut, processing, output and storage.

3.4.4.1. 5 types of personal computers : desktops, laptops , tablets.

3.5. Networks and Internet

3.5.1. Network: collection of computers connected together, wirelessly, communication devices and transmission media.

3.5.2. Internet : worldwide collection of networks that connect millions individuals.