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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. Hardware Needs Software to Work. Hardware Physical components of a computer

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chapter 1

Chapter 1

Introducing Hardware

you will learn
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

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

hardware needs software to work
Hardware Needs Software to Work
  • Hardware
    • Physical components of a computer
    • Visible part of a system
  • Software
    • Set of instructions that directs hardware to accomplish a task
    • The intelligence

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

functions of a computer
Functions of a Computer

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

binary communication between hardware and software
Binary Communication Between Hardware and Software

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

binary number system
Binary Number System

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

pc hardware components
PC Hardware Components
  • Outside computer case: input/output devices
  • Inside the case: processing and storage
    • CPU – most important component
  • Requirements of a hardware device
    • Method for CPU to communicate with it
    • Software to instruct and control it
    • Electricity to power it

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

hardware used for input and output
Hardware Used for Input and Output
  • Connects to computer case by ports (eg, serial, parallel, USB, game, keyboard, mouse)
  • Popular input devices:
    • Keyboard
    • Mouse
  • Popular output devices:
    • Monitor
    • Printer

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

ports
Ports

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

input devices
Input Devices

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

output devices
Output Devices

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

hardware inside the case
Hardware Inside the Case

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

motherboard components
Processing

CPU (most important)

Chip set

Temporary storage

RAM

Cache memory

Electrical system

Power supply connections

Communication with other devices

Traces

Expansion slots

System clock

Programming/setup data

Flash ROM

CMOS setup chip

Motherboard Components

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

the motherboard
The Motherboard

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

the motherboard continued
The Motherboard (continued)

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

the cpu
The CPU

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

the chip set
The Chip Set
  • Controls most activities on the motherboard
  • Includes several device controllers
    • USB controller
    • Memory controller
    • IDE controller

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

the chip set continued
The Chip Set (continued)

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

storage devices
Storage Devices
  • Temporary (primary storage, or memory)
    • Temporarily holds data and instructions while processing them
    • Faster to access than permanent storage
  • Permanent (secondary storage)
    • Data and instructions must be copied into primary storage (RAM) for processing

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

primary and secondary storage
Primary and Secondary Storage

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

primary storage devices
Primary Storage Devices
  • Memory, or RAM, located on motherboard and other circuit boards
    • Volatile versus nonvolatile (or ROM) memory
  • Types of boards that hold memory chips
    • SIMMs
    • DIMMs
    • RIMMs

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

ram chips
RAM Chips

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

types of ram modules
Types of RAM Modules

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

secondary storage devices
Secondary Storage Devices
  • Hard drives
  • CD-ROM drives
  • DVD drives
  • Zip drives
  • Floppy drives

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

hard drive
Hard Drive

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

eide technology
EIDE Technology
  • Used by most hard drives, CD-ROM drives, and DVD drives
  • Can accommodate up to four EIDE devices on one system

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

ide connectors on a motherboard
IDE Connectors on a Motherboard

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

ide connectors on a motherboard continued
IDE Connectors on a Motherboard (continued)

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

ide connectors on a motherboard29
IDE Connectors on a Motherboard

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

hard drive s power supply
Hard Drive’s Power Supply

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

floppy drive connection
Floppy Drive Connection

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

floppy drive connection continued
Floppy Drive Connection (continued)

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

cd rom drive connection
CD-ROM Drive Connection

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

motherboard components used for communication among devices
Motherboard Components Used for Communication Among Devices
  • The data bus
    • System of pathways used for communication and the protocol and methods used for transmission

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

the bus and bus lines
The Bus and Bus Lines

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

data bus
Data Bus

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

system clock
System Clock

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

clock speed
Clock Speed
  • Of motherboard
    • Measured in megahertz (MHz)
  • Of CPU
    • Measured in gigahertz (GHz)

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

expansion slots
Expansion Slots

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

types of expansion slots
Types of Expansion Slots

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

interface expansion cards
Interface (Expansion) Cards

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

interface expansion cards continued
Interface (Expansion) Cards (continued)

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

the electrical system
The Electrical System
  • Power supply
    • Most important component of computer’s electrical system
    • Converts/reduces electricity to voltage the computer can handle
    • Runs a fan directly from electrical output voltage to cool inside of computer case

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

the electrical system continued
The Electrical System (continued)

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

the electrical system continued45
The Electrical System (continued)

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

instructions stored on the motherboard
Instructions Stored on the Motherboard
  • ROM BIOS (most are flash ROM)
    • System BIOS
    • Startup BIOS
    • CMOS setup
  • Motherboard BIOS supports ACPI, APM, and Plug and Play technologies

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

rom bios chip
ROM BIOS Chip

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

motherboard configuration settings
Motherboard Configuration Settings
  • CMOS chip
    • Stores setup (configuration) information
    • Powered by a battery on motherboard when power is off
  • Setup information can also be set by jumpers and DIP switches

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

cmos configuration chip
CMOS Configuration Chip

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

setting jumpers
Setting Jumpers

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

using dip switches
Using DIP Switches

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

summary
Summary
  • Introduction to hardware components of a computer system
  • Initial insight into how hardware works

A+ Guide to Managing and Maintaining Your PC, Fifth Edition

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