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Central Processing Unit. CPU or Processor. Central Processing Unit. Components Control Unit Arithmetic & Logic Unit. Central Processing Unit. Control Unit Reads & Interprets Program Instructions Directs the Operation of the Processor

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central processing unit

Central Processing Unit

CPU or Processor

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Central Processing Unit

Components

Control Unit

Arithmetic & Logic Unit

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Central Processing Unit

Control Unit

Reads & Interprets Program Instructions

Directs the Operation of the Processor

Controls the flow of programs and data into and out of memory

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Central Processing Unit

Arithmetic & Logic Unit

Arithmetic:

Addition, Subtraction, Multiplication, Division

Logic:

Comparisons

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Central Processing Unit

Machine Cycle

Fetch

Decode

Execute

Store

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Central Processing Unit

Fetch

Calls an instruction into memory

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Central Processing Unit

Decode

Figures out what the instruction is trying to do

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Central Processing Unit

Execute

Does the decoded instruction

Add 2+2

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Central Processing Unit

Store

Puts the answer 4 into memory for use by another instruction

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Central Processing Unit

Clock Cycle

A Crystal Oscillator on the Motherboard

It paces the machine cycle

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Central Processing Unit

Clock Cycle

Measured in MHz or GHz

Megahertz = 1,000,000 cycles/sec

Gigahertz = 1,000,000,000 cycles/sec

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Central Processing Unit

Clock Cycle

One clock cycle is calculated by dividing 1 by the MHz or GHz

Example: (800 MHz CPU)

1/800,000,000 =

0.00000000125 or

1.25 nanoseconds (nano = billionth)

(1.25 billionths of a second)

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Central Processing Unit

Clock Cycle

The shorter the clock cycle the faster the processor

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Central Processing Unit

Pipelining

Executing multiple instructions at the same time

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Central Processing Unit

Parallel Processing

Multiple processors work together to complete a set of instructions

CPU 01

Control

CPU

Answer

CPU 02

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Central Processing Unit

Dual-Core

A dual-core CPU combines two independent processors and their respective caches and cache controllers onto a single silicon chip

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Central Processing Unit

Dual-Core Advantages

Less Power

Less Space

Better Performance

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Central Processing Unit

Dual-Core Disadvantages

Require Different OS

Scalability more limited

Lower production yields

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Central Processing Unit

INTEL

AMD

TRANSMETA

MOTOROLA

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Central Processing Unit

Assignment 01

Explain the difference between the Intel Dual-Core and AMD Dual-Core CPUS. What makes them different.

Double-Spaced, 12pt Font, w/References

Due: Wed Sept 7th

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