Introduction to Computers

Section 4BSection 4B

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Central Processing Unit

The computer’s primary processing

hardware, which interprets and executes

program instructions and manages the

functions of input, output, and storage

devices

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Architecture

A processor’s performance is dictated

by its internal design, or architecture

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Microcomputer Processors

IntelAdvanced Micro Devices (AMD) processorsMotorola processorsRISCParallel processing

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Extending the Processor’s Power to Other Devices

Serial and parallel portsSpecialized expansion ports

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Examples of Specialized Expansion Ports

SCSIUSBIEEE 1394 (FireWire)Musical Instrument Digital Interface (MIDI)

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Expansion Slots and Boards

Allow users to adapt, or configure, the

PC to their own needs

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PC Card

Another type of expansion card, the

size of a credit card

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Plug and Play

The Plug and Play standard makes it

easier to install hardware via an existing

port or expansion slot

Section 4BSection 4B

CPUs Used in Personal CPUs Used in Personal ComputersComputers

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Review Questions

What does architecture refer to?

Name the five microcomputer processors.

Name the ports that let you extend the processor’s power to other devices.

What are expansion slots and boards used for?