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Introduction to PC Hardware. Prepared for Computer Applications By Patrick Harrison. To move to the next slide, click on a Black area!!. External Hardware Components. Tower or Case Monitor Keyboard Mouse. External Hardware Components. Tower or Case

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introduction to pc hardware

Introduction to PC Hardware

Prepared for Computer Applications By

Patrick Harrison

To move to the next slide, click on a Black area!!

external hardware components
External Hardware Components
  • Tower or Case
  • Monitor
  • Keyboard
  • Mouse
external hardware components3
External Hardware Components

Tower or Case

The tower is the case that holds all the internal hardware components.

There are desktop cases and then there are towers. In this lab, we have desktop cases. In the Library Lab there are tower cases.

external hardware components4
External Hardware Components


The monitor is the device that displays the computers output on a screen. The hardware component that contains the screen is known as the monitor.

external hardware components5
External Hardware Components


The keyboard is the device we use to input data into the computer. It contains the letters of the alphabet, numbers and other computer related keys. We use our fingers to manipulate the keyboard.

external hardware components6
External Hardware Components


The mouse is the device we use to move the pointer that is displayed on the monitor. By clicking the left and right buttons on the mouse, we can manipulate items on the monitor’s screen.

internal hardware components
Internal Hardware Components
  • Central Processing Unit (CPU)
  • Hard Drive
  • Memory
  • Motherboard
  • Cards
internal hardware components8
Internal Hardware Components

Central Processing Unit

The CPU is the hardware component that does the “thinking”. It processes the input from the user and creates the output. The CPU is the BRAIN of the computer.

internal hardware components9
Internal Hardware Components

Hard Drive

The hard drive is the component that holds the input of the user in memory when the computer is NOT on. It is the long-term storage device for user data. The hard drive is to the computer what a cassette tape is to a tape player.

internal hardware components10
Internal Hardware Components


The memory of a computer is called RAM - Random Access Memory. It only holds information during the time the computer is ON. When the computer is turned off, all information in RAM is lost.

internal hardware components11
Internal Hardware Components


The motherboard is the device that holds the internal hardware components. All the internal hardware components are either directly plugged into the motherboard or are connected to the motherboard via cables and wires.

internal hardware components12
Internal Hardware Components


There are many types of cards that plug into the motherboard. Video Cards, Sound Cards, SCSI Cards, USB Cards and Modem Cards are just a few. These cards add many features to the computer that are not necessarily a part of ALL computers.