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Computerhardware
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- 2. Computer Hardware is thephysical components of the computer, Refers to the tangible (things you can touch) components of a computer system.
- 3. Hardware components are furtherdivided into three groups. 1. Input Devices 2. Output Devices 3. System Unit
- 4. INPUT DEVICE An inputdevice lets you communicate with a computer. You can use input devices to enter information and issue commands. OUTPUT DEVICE An output device displays information on a screen, creates printed copies or generates sound. SYSTEM UNIT The system unit is the part of the computer which is responsible for accepting and processing the data brought in by the input devices
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- 6. Keyboard Is a standardinput device of most computers. Used to type data into the computer.
- 7. Mouse is a hand-clicked deviceused for pointing and moving objects Joystick is an input device which is commonly used for computer games
- 8. Light Pen Track Ball basicallyan upside down mouse a device used to draw, write, or issue commands when it touches a specially designed screen
- 9. Scanner A scanner allowsyou to scan documents, pictures, or graphics and view them on the computer. Microphone Used to input sound into a computer
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- 11. Printers an output devicethat produces text and graphics on paper Inkjet Printer Laser Printer Impact Printer
- 12. Monitor The monitor isused to provide soft copy output.
- 13. Play sounds transmitted aselectrical signals from the sound card. Speaker is a type of video projector for displaying video, images or computer data on a screen or other flat surface Multimedia Projector
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- 15. Hard-Disk Drive Motherboard The motherboardis the main circuit board of a microcomputer. It is also known as the mainboard or system board is a storage device that store billons of characters of data on a nonremovable disk SID AE TA IDE stands for ISnetergiaralAteddvDaenvciecde EleTcetcrohnniocslo.giysa stanAdtatardchemlecetnrotnic interface used between a computer motherboard and the computer's disk storage devices
- 16. a p monitor. T interface. P gedat the Ports on from the ma eripheral devic d, a printer or he port is also orts are arran e main circuit board. boarU dSB P tor ots rear of th USB Ports Ethernet (RJ-45) Port COM (S ker eial) yP borts oar Power Sockets Sound Card Slots GREEN - Speaker / Headphone BLUE - CD Player / Ipod / etc. PINK - Microphone VGA (Monitor) Port aPSc/2 Koeynbonardecti iPnS/2 cMoiursecuit e such as a aP vara ill del ( ePri onter) Port cGaamlelPeordt an
- 17. CPU The central processingunit carries out each instruction of the program in sequence, to perform the basic arithmetical, logical, and input/output operations of the system it supplies power from the power supply to the drive. The power cables are red, yellow and black. The yellow wire furnishes 12 volts of power, the red wire furnishes 5 volts of power, the two black wire are ground wire for each. Power Supply
- 18. The memory ina computer system is of two fundamental types: The main/primary memory and the secondary memory. Memory Primary Memory Secondary Memory RAM HDD
- 19. Floppy Disk Drive Usedto stores and retrieves information on a floppy disk. CD/DVD Drive is a device that reads information stored on a compact disc, it is a storage device that use laser technology to read data from optical disks.
- 20. Sound Card ModemVideoCard is a board that is plugged into a computer to give it display capabilities. enhances the computers sound generating capabilities by allowing sound to be output through speakers. A modem is a device that sends and receives data over telephone lines to and from computers.
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