1. Objective 2.01A: Classify Computer Components
Computer Hardware
Objective 2.01A:
Classify Computer Components

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

3. What is a computer?
An electronic device that receives data, processes data, stores data, and produces a result (output)
Classified by
Size
Speed
Applications

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
Hardware devices are also known as peripheral devices.

6. Monitor Speakers Keyboard Mouse CD ROM Drive Computer Case
(Processor inside)
Floppy Disk Drive
Speakers
Keyboard
USB Drive
Mouse

7. Input Devices Mouse Webcam Keyboard Scanner Microphone Joystick
Used to put information into the computer
Allow you to communicate with your computer
Mouse
Webcam
Most Common and used to control the cursor
Keyboard
Most Common
Scanner
Microphone
Converts images into a readable form for the computer
Joystick
Used for Games

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

9. Types of Printers Inkjet (non-impact) Laser (non-impact)
Better quality of printed document
Uses ink cartridge
Less expensive than laser
Laser (non-impact)
Best quality of printed document
Uses laser beam and toner
Most expensive
Quickest

10. 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

11. 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 (Diskette)
Zip disks (Largest File Capacity)
CD-ROMs (Compact Disc Read Only Memory)
CD-RW (Compact Disc Read and Write)
DVDs (Digital Video Disc)
USB/Flash drives

12. Input, Output, and Storage Devices
Input device: hardware that allows the user to communicate with the computer.
Output device: hardware that allows the computer to communicate with the user
Storage device: allows you to store or retrieve information