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The Central processing Unit  Machine Cycle Information processing cycle
The Central processing Unit ,[object Object],[object Object],[object Object],[object Object],[object Object]
CS1BA3-L5 Intel Pentium D AMD Athlion 64 Intel Pentium  M
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object]
 
 
HOW THESE COMPUTER WORKS? Storage  (Pimary/Secondary Memory) Input Procesor Monitor, Printer CPU must be connected to input device, output device and storage device to carry out the activities Data Information INFORMATION PROCESSING CYCLE Data Information Output
Processor / CPU ,[object Object],[object Object],[object Object],[object Object]
Machine Cycle FETCHING EXECUTING STORING DECODING
Machine   Cycle ,[object Object],[object Object],[object Object],[object Object],[object Object],CS1BA3-L5
How it’s work ? Step 1.  Fetch   Calls an instruction into memory. User want to calculate 2 +2 Step 2.  Decode   Translate instruction into commands (to binary form) Eg : 1110000 Step 4.  Store   Write result to memory Step 3.  Execute   Does the decoded instruction Add 2+2 ,[object Object],Processor Control Unit MEMORY ALU
Control Unit ,[object Object],[object Object],[object Object],[object Object],CS1BA3-L5
The Arithmetic-Logic Unit and Control Unit   ,[object Object],[object Object],[object Object],[object Object]
Factors Affecting Processing Speed   ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],CS1BA3-L5
Which computer should I buy?  Desktop
Cpu

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Cpu

Hinweis der Redaktion

  1. Storage Devices
  2. Good website for what each component is and how it works. http://www.pcguide.com/ref/index.htm
  3. How fast a cpu can execute instructions depends on its internal clock called system clock and measured in number of ticks or cycles per second, usually MHz or GHz Clock speeds of 2 GHz and more are now available Word size depends on the size of registers, 8bit, 16 bits, 32 and now 64 bits