First electronic digital computer was designed by Dr. John V. Atanasoff and Clifford Berry .
Atanasoff-Berry-Computer, or ABC is their machines and provide the foundation for advances.
Dr John von Nuemann writes a brilliant paper describing the stored programs concept.
His idea is where memory hold both data and stored programs.
Also lays all the foundation for all digital computers that have since been built.
The first large-scale electronic was complete work by Dr. John w. Mauchly and J. Presper Eckert, Jr.
ENIAC (Electronic Numerical Integrator And Computer).
ENIAC weighs thirty tons, contains 18,000 vacuum tubes, occupies a thirty-by-fifty-foot space and consumes 160 kilowatts of power.
William Shockley, John Bardeen and Walter Brattain invent the transfer resistance device, called the transistor.
The transistor would revolutionize computers, proving much more reliable than vacuum tubes.
Remington Rand introduced electronic digital computer was called, the UNIVAC I (UNIVersal Automatic Computer)
IBM produces computer system which is IBM 650.
IBM 700 dominate the mainframe market for the next decade.
FORTRAN (FORmula TRANslation) - an efficient, easy-to-use programming language and introduced by John Backus.
The IBM 305 RAMAC system is the first to use magnetic diskk for external storage.
Second Generation Computer
Jack Kilby (Texas Instruments) invests integrated circuit.
Second Generation Computer used transistor
COBOL, a high-level business application language, is developed by a committee headed by Dr. Grace Hopper.
COBOL uses English-like phrases and runs on most business computers and making it one of the more widely used programming language
Third Generation Computer
The number of computers has grown to18,000.
Third Generation Computer was introduced stored on chips.
Dr. John Kemeny of Dartmouth leads the development of the BASIC programming language.
BASIC widely used on personal computers.
-Digital Equipment Corporation (DEC) introduces the first mini- computer.
Alan Shugart (IBM) demonstrates the first regular use of an 8-inch floppy (magnetic storage) disk.
-Edsger Dijsktra introduces the concept of structured programming, developing standards for constructing computer programs.
The ARPANET network, a predecessor of the Internet, is established.
IBM announces that some of its software will be priced separately from the computer hardware.
This unbundling allows software firms to emerge in the industry.
Fourth Generation Computer
Fourth Generation Computers, built with chips that use LSI (large-scale integration) arrive.