History of Computers

1. The first computers generation

Named ENIAC ( Electronic Numeric Integration n Computer ), create by : Jhon Mauchly and Jhon Presper Eckert (Pensylvania). Usability : to provide for the United States armed forces, in terms of : to measure the ( bridge ) table and the range of missiles, from new weapons.

Specifications of the ENIAC :
- 1 computer machine 30 tons of built in a lab
- With as many as 18,000 vacuum tubes
- 140 Kw of electricity
- decimal operations
- consists of 20 ACC ( Accumulator )

2. Computer second generation

Proposed by Von Neumann ( consultant on the ENIAC ), updated specification becomes :
- Vacuum tubes to transistors
- IAS has a computer brand

This generation computer concepts become the basic model to the next computer.

3. The third computers generation

Amended as follows :
- Know as the microelectronics
- Digital lead
- Logic gates

First used by IBM and was found 360 IC, the changes which the clock speed to 1 Mega = 1,000,000 Op/sec.

4. The fourth computers generation

Amended as follows :
- Semiconductors memory appears
- Intel 8008 ( 1972 ) created the first 8-bit Microprocessor
- Intel raises 8080 ( 1974 ) 8 bits, which is faster than more insturction 8008
- Created in the form of LSI

5. The fifth computers generation

Undergoing change :
- Is raised VLSI Technology
- 1,000,000,000 Speed Op/sec
- 32 bit appears