Week 3 ICS

Week 3 ICS - Week3ICS Memory o Storedataandjobs...

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Week 3 ICS 17:30 Memory o Store data and jobs John von Neuman o Stored program computers o Used the same memory to store instructions and data Processor Deus X Machine o Diagram of organization of machine o Each Number Address has a word of memory 4 Compartments Contains 1 Byte: 1 Letter or Symbol or 2 Decimal numbers o Non-Destructive Reading Reading to copy to another place without destroying the original o Destructive Writing Writing [copy] something to another spot, it erases the original o Registers Special location with extra circuitry Where you do calculations o Instruction Cycle 1. Fetch From next location in memory [move to instruction register[ 2. Decode Figure out what to do
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Instruction Format First Byte: Operation Code [Instructions] Next two Bytes: Operand [What or Where to do] 3. Execute Do the Job o
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This note was uploaded on 04/20/2011 for the course ICS 10 taught by Professor Stasio during the Spring '04 term at UC Irvine.

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Week 3 ICS - Week3ICS Memory o Storedataandjobs...

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