Chapter 1
Download
1 / 63

Chapter 1 - PowerPoint PPT Presentation


Chapter 1. Introducing Hardware. You Will Learn…. That a computer requires both hardware and software to work About the many different hardware components inside and connected to a computer How the CPU works and how it communicates with other devices. Hardware Needs Software.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha

Download Presentation

Chapter 1

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Chapter 1

Introducing Hardware


You Will Learn…

  • That a computer requires both hardware and software to work

  • About the many different hardware components inside and connected to a computer

  • How the CPU works and how it communicates with other devices


Hardware Needs Software


Primary Functions of Hardware


Communication Between Hardware and Software

  • Binary number system

  • ASCII (American Standard Code for Information Interchange)

  • Hexadecimal notation (hex)


Binary Code


ASCII


PC Hardware Components

  • Input/output

  • Processing

  • Storage

  • Electrical supply

  • Communication


Elements Required for Hardware Devices to Operate

  • Method for the CPU to communicate with the device

  • Software to instruct and control the device

  • Electricity to power the device


Hardware Used forInput and Output

  • Most resides outside computer case

  • Communicates through a port or a wireless connection


Port Connections for I/O Devices


Most Popular Input Devices


Most Popular Output Devices


Hardware Inside the Computer Case

  • Motherboard (CPU, memory)

  • Permanent storage (floppy, hard, CD-ROM drives)

  • Power supply

  • Circuit boards

  • Cables


Inside the Computer Case


The Motherboard

  • Largest and most important circuit board

  • Contains the CPU, with which all devices must communicate


The Motherboard


Ports Provided by Motherboard to Outside of Case

  • Serial

  • Parallel

  • USB

  • Game

  • Keyboard

  • Mouse


Ports Provided by Motherboard to Outside of Case


Major Components of Motherboards

  • For processing

    • CPU (performs most actual data processing)

    • Chip set (supports CPU by controlling system board activities)

  • For temporary storage

    • RAM

continued…


Major Components of Motherboards

  • To allow CPU to communicate with other devices

    • Traces or wires

    • Expansion slots

    • System clock

  • Electrical system

    • Power supply connections

  • Programming and setup data

    • Flash ROM

    • CMOS setup chip


The CPU


The Chip Set


Storage Devices

  • Primary storage (temporary)

    • Temporarily holds data and instructions as CPU processes them

    • Also called memory or RAM

  • Secondary storage (permanent)


Primary and Secondary Storage


Primary Storage

  • RAM storage

    • SIMMs (single inline memory modules)

    • DIMMs (dual inline memory modules)

    • RIMMs (manufactured by Rambus)


RAM Chips


Types of RAM Modules


How Much Memory Is Installed


Secondary Storage Devices

  • Hard disks

  • Floppy disks

  • Zip drives

  • CD-ROMs

  • DVDs


Hard Drives


Hard Drive

  • Most use EIDE (Enhanced Integrated Drive Electronics) technology, which can accommodate up to four IEDE devices on one system


Hard Drive


Hard Drive


Hard Drive


Hard Drive


Floppy Drive


Floppy Drive


CD-ROM Drive


Motherboard Components Used for Communication Among Devices

  • Bus

  • System clock

  • Expansion slots

    • PCI: High-speed input/output devices

    • AGP: Video card

    • ISA: Older and/or slower devices


Bus Lines


Data Bus


System Clock

  • Synchronizes activity on the motherboard

  • Controls pace of activity by sending continuous pulses over the bus that different components use


System Clock


Expansion Slots


Expansion Slots


Interface (Expansion) Cards

  • Enable CPU to connect to external devices or to a network

  • Determine function by looking at the end of the card that fits against back of computer case


Expansion Cards


Expansion Cards


Identifying Expansion Cards


The Electrical System

  • Power supply (most important component)

    • Provides power for the computer

      • Receives 110-120 volts AC and converts it to lower DC voltage that the computer can handle

    • Runs a fan to help cool inside of computer case


Power Supply


Power Supply


Power Supply


Instructions and Data Stored on the Motherboard

  • Provide rudimentary information about setup of computer

  • Start computer

  • Search for an OS

  • Stored on special ROM chips:

    • By setting physical switches on the board (jumpers and DIP switches)

    • Using CMOS configuration chips


ROM BIOS Chips

  • Hybrid of hardware and software with embedded programming

  • Called firmware


ROM BIOS Chips


ROM BIOS Chips


CMOS Configuration Chips


Jumpers


DIP Switches


Chapter Summary

  • Hardware used for input and output

  • Hardware inside the computer case

  • The motherboard, CPU, and chip set

  • Storage devices

  • Motherboard components used for communication among devices

continued…


Chapter Summary

  • Interface (expansion) cards

  • The electrical system

  • Instructions and data stored on the motherboard


ad
  • Login