Evolution Of Computers

By EBanerjee

  • The first computer

    The first computer
    The first computer was made in 1936 by Konrad Zuse who was German, the computer was called Z1. The Z1 was about 1,000 kg and consisted of 20,000 parts. It was a programmable computer using binary code. Found on https://history-computer.com/ModernComputer/Relays/Zuse.html

  • First mainframe computer

    First mainframe computer
    The first mainframe computer is the UNIVAC I (UNIVersal Automatic Computer I). It was made in March 1951. It was designed principally by J. Presper Eckert and John Mauchly. The UNIVAC I had 5,000 vacuum tubes and 1,500 bytes of memory. It also had 10 magnetic tape drives. Found by quora.com/When-was-the-first-mainframe-computer-invented-and-by-who

  • the first minicomputer

    the first minicomputer
    the first minicomputer was invented in November 1960 by DEC, It was called PDP-1. The PDP-1 sold for about $120,000, which made it one of the most inexpensive computers of that time. The PDP-1 was centered around the user. The PDP-1 has an 18-bit word and 4 kilowords as standard main memory, upgradable to 64 kilowords. The PDP-1 was designed to operate with many types of input-output devices. found by https://history-computer.com/ModernComputer/Electronic/PDP-1.html

  • The first supercomputer

    The first supercomputer
    The first supercomputer is The CDC 6600 from Control Data Corp. It was built in 1964 and was designed by Seymour Cray. It ran at about 1 megaflop. That was about three times faster than the previous fastest computer, the IBM 7030 Stretch. Found by https://gcn.com/blogs/tech-trivia/2011/10/first-supercomputer.aspx#targetText=Which%20was%20the%20first%20supercomputer%3F&targetText=Answer%3A,floating%20point%20operations%20per%20second).

  • The first touchscreen computer

    The first touchscreen computer
    The first touchscreen computer was invented by George Samuel Hurst; who received a US patent on this. (I can't find any more info on this

  • The first desktop

    The first desktop
    The first desktop was created in 1975 by Ed Roberts and was called Altair 8800. The Altair 8800 was considered the first "Personal Computer". The Altair 8800 cost $439. The Altair 8800 was made with a metal case, a power supply, a front panel with switches, and a passive motherboard with expansion slots. Found by https://oldcomputers.net/altair-8800.html

  • The first portable computer

    The first portable computer
    The first portable computer was a PC and that was 24 pounds and had a 5-inch screen in the middle that could only fit 52 characters per line. This screen was sandwiched between two floppy disks. It cost $1,795.Found by https://www.pcmag.com/news/262658/first-portable-computer-debuted-30-years-ago

  • The first laptop+tablet

    The first laptop+tablet
    The first laptop+tablet was called The Compaq Concerto. It was made in 1993. Concerto was the first tablet computer. The Concerto was not a very successful laptop, but it did have some special features: a detachable keyboard, and a pen & touch screen (the touch screen only worked with the special pen). It could be considered to be ahead of its time. Found by http://www.computinghistory.org.uk/det/22981/Compaq-Concerto-2840A/