BME303_lecture2_chap1

BME303_lecture2_chap1 - BME303 Intro to Computing Chapter 1...

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1 BME303 Intro. to Computing Chapter 1 Welcome Aboard BME303 Intro. to Computing Computer 2
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2 BME303 Intro. to Computing 3 BME303 Intro. to Computing 4 History of Computer • The first electromechanical computer – Zuse (German) 1940s, first programmable computer – Mark I, Howard Aiken, 1941, supported by IBM, with mechanical wheels, treat data and instruction separately • The first mainframe – John Fleming and Lee de Forest invented vacuum tube – ENIAC, 1945, U Penn, 17480 vacuum tubes, wt. 30 ton , calculator that can not make decisions (no if. .then) – EDVAC, John von Neumann EDVAC ( E lectronic D iscrete V ariable A utomatic C omputer )
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3 BME303 Intro. to Computing Modern Computers •M i c r o c o m p u t e r s – Transistors invented at AT&T Bell lab in 1948 – First microprocessor 4040 (4-bit and 2300 transistors) – Intel 8007, 1972 – Motorola 6800, 1974 – Altair, 1975 (intended to sold to hobbyists only) – Apple Mac 1976 – IBM PC – Google/Android – Who is winning? Open standard vs. Style 5 Altair 8800 Computer with 8 inch floppy disk system BME303 Intro. to Computing 6 Introduction to Computing Low level implementation details _______________________________ _______________________________ _______________________________ The microprocessor _______________________________ _______________________________ _______________________________ Higher level programming languages _______________________________ _______________________________ _______________________________
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4 BME303 Intro. to Computing 7 Two recurring themes • I. Abstraction – Allows one to be more efficient in dealing with all kinds of situations (you don’t get bogged down with the details) – E.g. “go to BME lab” – Assuming all the ______ work as intended BME303 Intro. to Computing 8 Two recurring themes • II. Hardware vs. Software – Hardware and software are inseparably connected, especially at the level we will be studying.
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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_lecture2_chap1 - BME303 Intro to Computing Chapter 1...

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