The First Generation
the first generation
The first computers used vacuum tubes for circuitry and magnetic drums for memory, and were often enormous, taking up entire rooms. They were very expensive to operate and in addition to using a great deal of electricity, generated a lot of heat, which was often the cause of malfunctions.
First generation computers relied on machine langue, the lowest-level programming language understood by computers, to perform operations, and they could only solve one problem at a time. Input was based on punched cards and paper tape, and output was displayed on printouts.
The UNIVAC and ENIAC computers are examples of first-generation computing devices. The UNIVAC was the first commercial computer delivered to a business client, the U.S. Census Bureau in 1951
The second generation
the third generation
Instead of punched cards and printouts, users interacted with third generation computers through keyboards and monitors and interfaced with an operation system, which allowed the device to run many different applications at one time with a central program that monitored the memory. Computers for the first time became accessible to a mass audience because they were smaller and cheaper than their predecessors.
the fouth generation
the fifth generation
Alan Turing was born in London in 1912 and and at school he was able to solve complex problems without having been taught them!
BORN: June 23 1912, London, Maida Vale
DIED: 7 June 1954 of cyanide poisoning
FIRST COMPUTER MADE: february 15th 1946
CRAZY FACT: Once he cycled 100km
During the world war 2, Turing worked at Belchley park and was involed in breaking the German Enigma Machine codes.
Professor Sir Timothy John Berners-Lee, OM, KBE, FRS, FREng, FRSA, DFBCS, also known as TimBL, is an English computer scientist, best known as the inventor of the World Wide Web.
Born: June 8, 1955 (age 60), Londen
Organizations founded: world wide web consortium, world wide foundation.
Parents: Mary Lee Woods, Conway Berners Lee
a list of peripheral devices
inputs and outputs
inputs and outputs include
- pen tablet
- MIDI keyboard
- digital camera
- video camera