Lecture 3...CS 101

Lecture 3.CS 101 - Lecture 3 Behind the Scenes A Closer Look at System Hardware Digital Data Switches and Bits System Unit:the box that contains

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Lecture 3 Behind the Scenes: A Closer Look at System Hardware Digital Data: Switches and Bits System Unit::the box that contains the central electronic components of the computer, including the central processing unit (CPU), memory, motherboard, and many other circuit boards that help the computer to function Electrical Switches What are the switches, and what do they do? Binary language consists of 0 and 1 and electrical switches can be flipped on and off between 1 or 0 Why do computers use 0s and 1s to process data? Computers only understand on and off and 0s and 1s represent those stages. What were the first switches used in computers? Vacuum tubes act as switches by allowing or blocking the flow of electrical current What do personal computers use as switching devices? Transistors and integrated circuits to make them smaller and faster What are transistors? Transistors are electrical switches that are built out of a semiconductor (silicon) and can be used to control the electricity or act as an insulator. Early transistors were built in separate units and were
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This note was uploaded on 04/04/2008 for the course CS 101 taught by Professor Glenncarter during the Spring '08 term at Sonoma.

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