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

Hardware Needs Software to Work 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 A+ Guide to Managing and Maintaining Your PC, Fifth Edition

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

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

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

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

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

The Motherboard (continued) A+ Guide to Managing and Maintaining Your PC, Fifth Edition

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

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

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

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

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

IDE Connectors on a Motherboard A+ Guide to Managing and Maintaining Your PC, Fifth Edition

IDE Connectors on a Motherboard (continued) A+ Guide to Managing and Maintaining Your PC, Fifth Edition

Hard Drive’s Power Supply A+ Guide to Managing and Maintaining Your PC, Fifth Edition

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

Floppy Drive Connection (continued) A+ Guide to Managing and Maintaining Your PC, Fifth Edition

CD-ROM Drive Connection A+ Guide to Managing and Maintaining Your PC, Fifth Edition

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

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

Types of Expansion Slots A+ Guide to Managing and Maintaining Your PC, Fifth Edition

Interface (Expansion) Cards A+ Guide to Managing and Maintaining Your PC, Fifth Edition

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

The Electrical System (continued) A+ Guide to Managing and Maintaining Your PC, Fifth Edition

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