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Computers6 Ch4 1

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The document summarizes key components and functions of the central processing unit (CPU). The CPU has two main parts - the control unit and the arithmetic/logic unit (ALU). The control unit directs the system to carry out instructions while the ALU performs arithmetic and logical operations. The CPU executes instructions in four steps - fetching, decoding, retrieving data, and storing results. It interacts closely with memory to access instructions and data.

Technology
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The Central Processing Unit Chapter 4 B.M.H
Learning Objectives ,[object Object],[object Object],[object Object],[object Object],[object Object],MIU
The CPU (Central Processing Unit) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],MIU Intel pentium processor
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The Control Unit ,[object Object],[object Object],[object Object],[object Object],[object Object],MIU CPU
The Arithmetic/Logic Unit (ALU) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],MIU CPU
Logical operations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],MIU CPU
Data storage and the CPU ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],MIU
Registers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],MIU
Registers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],MIU
Storage Comparison ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],MIU
Memory ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],MIU
Memory ,[object Object],[object Object],[object Object],MIU
How the CPU executes program instructions
Before an instructions executions ,[object Object],[object Object],[object Object],[object Object],MIU
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Machine cycle ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],MIU Always
Machine cycle ,[object Object],[object Object],[object Object],[object Object],MIU
[object Object],[object Object],[object Object],[object Object],Storage Locations and Addresses MIU How the control unit finds instructions and data 1 2 3 Rate 8 4 5 6 Hours 40 7 8 Salary 320 Employee’s salary Instruction ↓ Data in 3ⅩData in 6 ↓ Move to 8
Data Representation Bits, Bytes and Words Coding Schemes
Binary system ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],MIU
Binary Equivalent of Decimal Numbers 0-17 MIU Units : bit Byte(8 bit) word(2 or 4 B) KB(1,024 B) MB(1,024 KB) GB(1,024 MB) Physical Representation Conversion(Bin -> Dec) binary digit 2 8 = 256 0 1 N S N S + 100110 2 32 4 2 38 10 = 32 16 8 4 2 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 0 1 10 11 100 101 110 111 1000 1001 1010 1011 1100 1101 1110 1111 10000 10001 0 1 2 3 4 5 6 7 8 9 A B C D E F 10 11 Dec Binary Hex
Bits, Bytes, and Words ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],MIU Data Representation
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],MIU Bits, Bytes, and Words Data Representation Term Abbreviation Approximate Number Exact Number Kilobyte KB 10 3 2 10 = 1024 Megabyte MB 10 6 2 20 Gigabyte GB 10 9 2 40 Terabyte TB 10 12 2 80
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Bits, Bytes, and Words MIU Data Representation
Coding Schemes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],MIU
ASCII, EBCDIC and Unicode ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],MIU Coding Schemes
ASCII, EBCDIC and Unicode ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],MIU Coding Schemes
Short Quiz ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],MIU
Review ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],MIU

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Computers6 Ch4 1

  • 1. The Central Processing Unit Chapter 4 B.M.H
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  • 4. MIU
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  • 14. How the CPU executes program instructions
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  • 16. MIU
  • 17. MIU
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  • 21. Data Representation Bits, Bytes and Words Coding Schemes
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  • 23. Binary Equivalent of Decimal Numbers 0-17 MIU Units : bit Byte(8 bit) word(2 or 4 B) KB(1,024 B) MB(1,024 KB) GB(1,024 MB) Physical Representation Conversion(Bin -> Dec) binary digit 2 8 = 256 0 1 N S N S + 100110 2 32 4 2 38 10 = 32 16 8 4 2 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 0 1 10 11 100 101 110 111 1000 1001 1010 1011 1100 1101 1110 1111 10000 10001 0 1 2 3 4 5 6 7 8 9 A B C D E F 10 11 Dec Binary Hex
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