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 bySizeSpeedApplications
4 Types of Personal Computers Desktop computer: designed to be used on a desktopLaptop computer: portable computer designed to be small enough and light enough to be used on your lapTablet 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 touchHardware devices are also known as peripheral devices.
6 Monitor Speakers Keyboard Mouse CD ROM Drive Computer Case (Processor inside)Floppy Disk DriveSpeakersKeyboardUSB DriveMouse
7 Input Devices Mouse Webcam Keyboard Scanner Microphone Joystick Used to put information into the computerAllow you to communicate with your computerMouseWebcamMost Common and used to control the cursorKeyboardMost CommonScannerMicrophoneConverts images into a readable form for the computerJoystickUsed for Games
8 Output Devices Speakers Send information out of the computerAllow the computer to communicate with the userMonitor – Video display screen and produces soft copyProjectorPrinter – produces hard copyHeadphones
9 Types of Printers Inkjet (non-impact) Laser (non-impact) Better quality of printed documentUses ink cartridgeLess expensive than laserLaser (non-impact)Best quality of printed documentUses laser beam and tonerMost expensiveQuickest
10 Processing Device Central Processing Unit (CPU) known as the heart or “brain” of the computerresponsible 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 computerHard drive:Allows the fastest access to informationRAM (Random Access Memory) – temporary storageROM (Read Only Memory) – long-term storageExternal Storage-Allows you to use devices to store information outside of the computerFloppy 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 userStorage device: allows you to store or retrieve information