computer generation computer generation first generation second generation third generation fourth...

7
Computer Generation Computer Generation First Generation Second Generation Third Generation Fourth Generation Fifth Generation

Upload: clare-kelley

Post on 04-Jan-2016

256 views

Category:

Documents


3 download

TRANSCRIPT

Page 1: Computer Generation Computer Generation First Generation Second Generation Third Generation Fourth Generation Fifth Generation

Computer GenerationComputer Generation

First Generation Second Generation Third Generation Fourth Generation Fifth Generation

Page 2: Computer Generation Computer Generation First Generation Second Generation Third Generation Fourth Generation Fifth Generation

Computer Generation Computer Generation

• 1940’s – early 1950’s• Vacuum tube as switch• Bulky, slow, easily heated• ENIAC(Electronic Numerical Integrator and Computer) • , UNIVAC• Stored program concept (Von

Neumann)• Assembly Language

Page 3: Computer Generation Computer Generation First Generation Second Generation Third Generation Fourth Generation Fifth Generation

Computer GenerationComputer Generation

1950’s – mid 1960transistor as switch Smaller and faster (x1000)Less heat, more reliable, cheapThe usage of high level language

beginsDEC-PDP-1

Page 4: Computer Generation Computer Generation First Generation Second Generation Third Generation Fourth Generation Fifth Generation

Computer GenerationComputer Generation

Late 1960’sSilicon chip as switch smaller and faster (x1000)More reliable

Page 5: Computer Generation Computer Generation First Generation Second Generation Third Generation Fourth Generation Fifth Generation

Computer GenerationComputer Generation

1970’s –currentSingle processor microchip as switch Very low cost and afforded by

individual

Page 6: Computer Generation Computer Generation First Generation Second Generation Third Generation Fourth Generation Fifth Generation

Computer GenerationComputer Generation

Japan founded artificial intelligence in the mid 1990

Expert system, natural languageCommunication and network

Page 7: Computer Generation Computer Generation First Generation Second Generation Third Generation Fourth Generation Fifth Generation

Generation Electronic circuit

Main Memory

Secondary Memory

Input Output Computer Size

1Vacuum Tube Magnetic reel -Magnetic reel

-Magnetic tape

-paper tape

-punch card

-punch card

-printer

Room size30 ton,1500 kps,18000 vacuum tube,140k/w

2transistor Magnetic

core-Magnetic tape- Magnetic disk

punch card punch card - printer

Drawer size

3Integrated circuit

Magnetic core

-Magnetic tape-Magnetic disk

-keyboard-Magnetic tape-Magnetic disk

-printer-video-display

Table size

4microprocessor

Semiconductor circuit

-magnetic disk-diskette-magnetic wave

-keyboard-Optical -recognition -Light pen-Graphic tablet

-printer-video -display-audio response

Typewriter size

HISTORY AND COMPUTER REVOLUTION