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

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

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

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

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.

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

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

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

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

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

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

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