BME303_lecture6_chap3

BME303_lecture6_chap3 - BME303 Intro. to Computing Chapter...

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1 BME303 Intro. to Computing Chapter 3: Digital Logic Structures BME303 Intro. to Computing Problem Data Path Memory Devices, Circuits, … Language Machine (ISA) Architecture Algorithms Storage Elements R-S Latch Gated D latch Register Logic Structures Decoder Mux (multiplexer) Adder ttom Up 2 Micro-architecture Circuits Devices Logic Gates –N O T –O R –A N D Other gates Transistors Bo
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2 BME303 Intro. to Computing First transistor and beyond First transistor was invented in 1947 by John Bardeen, Walter Brattain, and William Shockley at Bell Laboratories (the three shared a Nobel prize later) Shockley started a semiconductor company in Palo Alto, and staff of folded company invented the integrated circuit (the "chip") and found Intel Corporation By 1960, most computers used transistors fli d fi t f 3 for logic , and ferrite cores for memory (Shanghai-born American physicists, An Wang and Way-Dong Woo ) Memory chips (digital circuits) replaced cores in the 1970's Workbench of John Bardeen and Walter Brattain at Bell Laboratories BME303 Intro. to Computing Disclaimer • Not all electronic computers are made from transistors. Electronic logic can be built from tb – vacuum tubes – magnetic amplifiers, core, bubbles – superconducting cryotrons – superconducting Josephson junctions So, why transistors then … "Had the automobile developed at a pace (equal) to that of the 4 "Had the automobile developed at a pace (equal) to that of the computer during the past twenty years, today a Rolls Royce would cost less than $3.00, get 3 million miles to the gallon, deliver enough power to drive (the ship) the Queen Elizabeth II, and six of them would fit on the head of a pin!"
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3 BME303 Intro. to Computing April 1972 Name of Processor: 8008 Clock speed: 200 kHz Number of transistors: 3,500 Intel Processors March 1993 Name of Processor: Pentium Clock speed: 60 MHz Number of transistors: 3.1 million September 1978 Name of Processor: 8086 Clock speed: 10 MHz Number of transistors: 29,000 February 1982 Name of Processor: 286 Clock speed: 12 MHz Number of transistors: 134,000 May 1997 Name of Processor: Pentium II Clock speed: 300 MHz Number of transistors: 3.3 million August 1999 Name of Processor: Pentium III Clock speed: 600 MHz Number of transistors: 9.5 million 5 October 1985 Name of Processor: 386 Clock speed: 16 MHz Number of transistors: 275,000 April 1989 Name of Processor: 486 Clock speed: 25 MHz Number of transistors: 1,200,000 November 2000 Name of Processor: Pentium 4 Clock speed: 1.5 GHz Number of transistors: 42 million Nov 2002 Name of Processor: Pentium 4 Clock speed: 3.0 GHz Number of transistors: 55 million BME303 Intro. to Computing Transistor as a Switch
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This note was uploaded on 02/02/2011 for the course BME 303 taught by Professor Ren during the Spring '08 term at University of Texas.

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BME303_lecture6_chap3 - BME303 Intro. to Computing Chapter...

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