lecture01 - CMPT 150 Introduction to Computer Design Page 1...

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CMPT 150 Introduction to Computer Design Page 1 CMPT 150: Introduction to Computer Design Topic #1: Introduction to Numbers and Codes CMPT 150 Introduction to Computer Design Page 2 The Transistor ! Key invention enabling electronic computers ! Transistor ! John Bardeen, Walter Brattain, and William Shockley [Bell Labs, 1947] ! Integrated circuit (microchip) ! Jack Kilby [TI 1958], Robert Noyce [Fairchild Semiconductor, 1958] CMPT 150 Introduction to Computer Design Page 3 The Transistor ! Transistor as a switch ! Control input opens and closes switch ! Physically a transistor is made of a semiconductor that conducts only when charged ! Control charges the semiconductor ! The input passes through to output if and only if it is conducting ! Processors are made up of millions of transistors CMPT 150 Introduction to Computer Design Page 4 Layering of Abstraction The notion of abstraction and layering comes up repeatedly in this course: ! Packages: circuit modules ! Sequential Circuits ! Combinational Circuits ! Gates ! Switches ! Transistors (wires, resistors, & capacitors) on a wafer
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lecture01 - CMPT 150 Introduction to Computer Design Page 1...

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