Computers6 Ch4 1

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

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

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

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

Computers6 Ch4 1

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Computers6 Ch4 1