1. Objective 4.01: Classify computer components
Computer Hardware
Objective 4.01: Classify computer components

2. Essential Question:
What are the parts and features of a computer?

3. What is a computer? A computer completes 4 tasks.
A computer receives data, processes data, stores data, and produces a result (output)

4. Types of Personal Computers
Desktop computer: designed to be used on a desktop
Laptop computer: portable computer designed to be small enough and light enough to be used on your lap
Tablet computer: portable computer primarily operated by touching the screen rather than using a physical keyboard

5. Computer Components: Hardware
Hardware – the physical equipment of the computer system that you can see and touch

6. Monitor Speakers Keyboard Mouse CD ROM Drive Computer Case
(Processor inside)
Floppy Disk Drive
(Not commonly found on computers)
Speakers
Keyboard
USB Drive
Mouse

7. Input Devices Webcam Mouse Keyboard Microphone Joystick Scanner
Used to put information into the computer
Allow you to communicate with your computer
Webcam
Mouse
Keyboard
Microphone
Joystick
Scanner

8. Output Devices Speakers Monitor – produces soft copy output Projector
Send information out of the computer
Allow the computer to communicate with the user
Monitor – produces soft copy output
Projector
Printer – produces hard copy output
Headphones

9. Processing Device
Central Processing Unit (CPU) – known as the heart or “brain” of the computer, responsible for processing the information that has been entered into the computer

10. Storage Devices Internal Storage- External Storage-
Allows you to store information inside of the computer
Hard drive:
Allows the fastest access to information
RAM (Random Access Memory) – temporary storage
ROM (Read Only Memory) – long-term storage
External Storage-
Allows you to use devices to store information outside of the computer
Floppy disks
CD-ROMs (Compact Disc Read Only Memory)
CD-RW (Compact Disc Read and Write)
DVDs (Digital Video Disc)
USB/Flash drives

11. The Information Processing Cycle

12. What Does IPOS Stand For?
Input
Processing
Output
Storage

13. What Happens During The IPOS Cycle?
Input
when information is entered into the computer; the computer receives information
Processing
when the computer processes the information that has been entered
Output
when information leaves the computer
Storage
when information is stored to be used later

14. How the IPOS Cycle Works:
Input
Storage
Processing
Storage
Output