MB115- Midterm Exam Guide - Comprehensive Notes for the exam ( 23 pages long!)
13 Oct 2017
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Document Summary
Computer system viewed as an enormous collection of on/off switches. Computers only understand two states: 1 (on) or 0 (off) Earliest generation of computers used vacuum tubes as switches to allow or block flow of electrical current. Eniac electrical numerator integrator and calculator, developed by a team at the university of. Universal automatic computer (univac) 1951, the first commercially successful digital computer. Transistors (1947) electrical switches built of layers of material called semiconductors used to switch electronic signals and electrical power (on/off), considered second-generation computers, silicon is used to make transistors. Integrated circuits (ics) 1957, invented by jack kilby of texas instruments, ic is a collection of multiple electronic components resistors, transistors, capacitors, etc. ) on a small chip with connective parts, considered third-generation computers. Personal computers/pcs (1972) xerox alto: one of the first pcs developed by xerox, birth of the gui (graphical user interface)
