COMPUTER GENERATION
FIRST GENERATION
The first generation of computer were
huge,slow ,expensive and often unrealiable.In 1946 ,two Americans,Presper
Eckert and Willian Maunchly build the ENIAC (electronic numerical intergrator
and computer),It use vacuum tube instead of mechanical switches of the MARK 1.
In 1951,Eckert and Maunchly build the
UNIVAC,which is could calculate at the rate of 10000 addition per second.
HARDWARE TECNOLOGY
New invention of hardware were needed
with the new computer technology.
Vacuum tube
- was an extreamly important step of the advancement of computers.
- In a computer a vacuum tube which is an electronic tube about the size of light bulbs,was used as the internal computer component.Thousan of them are used.
Punched card
Magnetic tape
- was faster and more compact method of storing data.
- became more reliable and cost-effective.
PROBLEMS
- ·The vacuum tubes
generate a great deal of heat causing many
problems in temperature
regulation and climate contol.
- · The tube also burnt out
frequently.
- People operating the
computer did not know that the problem
was the programming machine
- The second generation
computer scientist invented something new due to lots of problem created by
vacuum tubes.
SECOND GENERATION
-The creation of transistor spark the production of a wave of second generation computer.
-Transistor was small device use to transfer electronic signal across a resister.
Advantages of the transistor;
- smaller than vacuum tube.
- needed no warm up time
- less energy
- much less heat
- faster and more reliable
THIRD GENERATION
In this generation,the IBM 370 series were introduce in 1964.It came in several models and sizes.It was used for business and scientific programs.Other computer models introduce were CDC 7600 and B2500.
The development of intergrated circiut (IC),signal the beginning of the third generation computers.Silicone chips were manufactured in 1961 at the Silicone Valley.
It is a complete electronic circuit on
asmall chip of silicone.Which is also known as semi conductor.Other than that ,the Magnetic Core Memory was
replaced by s device called the microchip.Also the first 256 bit
RAM was introduce and it was the basis
for development of 1k bit RAM .
ADVANTAGES
A new concept in this generation was
that of family of computer which allowed computer to be upgrade and expanded as
necessary.
·
Silicone chips were
reliable,compact and cheaper.
·
Sold hardware and
software separately which created the software industry.
·
Customer service
industry flourished (reservation and credit checks)
FOURTH GENERATION
It took only 55 years for the 4
generation to envolve.The growth of the computer industry developed
technologies of the computer inventions.
Example type of computer models:
- Apple Macintosh
- IBM
- DELL
- ACER
In Intel created the first microprocessor
.In 1976,Steve Jobs built the first Apple computer .Then,in 1981,IBM introduced
its first personal computer.
During the fourth generation darware
technology such as silicone chips, microprocessor and storage devices
invented.A microprocessor is a specialized
chip which is developed for computer memory and logic.
The microprocessor is a large-scale
intergrated circuit which contained thousands of transistors.The transistor on
this one chip are capable of performing all of functions of a computer’s central
processing unit.
ADVANTANGES
·
Computersbecome 100
times smaller than ENIAC (Elevtronic
Numerical Intergrator and Computer)
·
Gain speed
,reliability,storage capacity
·
Personal and Software
industry boomed.
FIFTH GENERATION (PRESENT AND BEYOND)
The fifth generation of computer
technologically advance and are still being development to become more
efficient.
The inventions of new hardware
technology in the fifth generation have grown rapidly including many other
modern computer devicessuch as:
- ·
Silicone chip
- ·
Processor
- ·
Robotics
- ·
Virtual reality
- ·
Intelligent systems
- ·
Programs which
translate languages
NEW ERA COMPUTER
After the fifth generations computer,the
technology of computer has become more advance,modern, and sophisticated.The
latest invention in thee era of computer are:
- ·
Super computer
- · Mainframe computer
- ·
Mini computer
- ·
Personal computer
- ·
Mobile computer
In the new era of computers, expert
systems such as teleconferencing and speech-recognition system have been
inverted as part of modern world communication tools.
|
mainframe |
|
mini computer |
|
super computer |
|
personal computer |
|
mobile computer |
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