Generation of Computer
6/22/2012
Generations of Computer Computer Age: Past, Present, and Future
The First generation The Second Generation The Third Generation The Fourth Generation The Fifth Generation
The Computer Age
1951-1958
The First Generation
Vacuum Tube
– –
Rapid changes Four generations over 50 years Trends across generations – Decrease size – Increase speed
Magnetic core memory Storage
– –
Heat Burnout
Machine language
Punched cards Tape (1957)
Characteristics of 1st Generation Computers Computers big and clumsy Electricity consumption is high Electric failure occurred regularly - computers not very reliable Large air conditioners was necessary because the computers generated heat Batch processing
The First Generation
1951, UNIVAC
Eckert and Mauchly completed the first commercial computer in the USA – the UNIVAC (Universal Automatic Computer) First computer built for business Short Code - A set of instructions called Short Code is developed for the UNIVAC. Programmers
The First Generation
1951, SAGE - Semi Automatic Ground Environment was developed. IBM built the SAGE computers and became leaders in real-time applications and used the technology of Whirlwind. SAGE computers were used in an early U.S. air defense system. They were fully deployed in 1963, that consisted of 27 centers throughout North America, each with a duplexed AN/FSQ-7 computer system containing over 50,000 vacuum tubes, weighing 250 tons and occupying an acre of floor space. SAGE was the first large computer network to provide man-machine interaction in real time.
1
6/22/2012
The First Generation
1952, EDVACElectronic Discreet Variable Computer
–
The First Generation
1953, IBM 701
–
John Von Neumann, designed with a central control unit which would calculate and output all mathematical and logical problems and a memory which could be written to and read. (RAM in modern terms) which would store programs and data.
The 701 was formally announced
Generations of Computer Computer Age: Past, Present, and Future
The First generation The Second Generation The Third Generation The Fourth Generation The Fifth Generation
The Computer Age
1951-1958
The First Generation
Vacuum Tube
– –
Rapid changes Four generations over 50 years Trends across generations – Decrease size – Increase speed
Magnetic core memory Storage
– –
Heat Burnout
Machine language
Punched cards Tape (1957)
Characteristics of 1st Generation Computers Computers big and clumsy Electricity consumption is high Electric failure occurred regularly - computers not very reliable Large air conditioners was necessary because the computers generated heat Batch processing
The First Generation
1951, UNIVAC
Eckert and Mauchly completed the first commercial computer in the USA – the UNIVAC (Universal Automatic Computer) First computer built for business Short Code - A set of instructions called Short Code is developed for the UNIVAC. Programmers
The First Generation
1951, SAGE - Semi Automatic Ground Environment was developed. IBM built the SAGE computers and became leaders in real-time applications and used the technology of Whirlwind. SAGE computers were used in an early U.S. air defense system. They were fully deployed in 1963, that consisted of 27 centers throughout North America, each with a duplexed AN/FSQ-7 computer system containing over 50,000 vacuum tubes, weighing 250 tons and occupying an acre of floor space. SAGE was the first large computer network to provide man-machine interaction in real time.
1
6/22/2012
The First Generation
1952, EDVACElectronic Discreet Variable Computer
–
The First Generation
1953, IBM 701
–
John Von Neumann, designed with a central control unit which would calculate and output all mathematical and logical problems and a memory which could be written to and read. (RAM in modern terms) which would store programs and data.
The 701 was formally announced