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1. input

   • touch pad
     • a computer input device in the form of a small panel containing different touch-sensitive areas.
   • mouse
     • a panel of keys that operate a computer or typewriter.
   • key board
     • Moving a mouse along a flat surface can move the on-screen cursor to different items on the screen
   • track ball
     • small ball that is set in a holder and can be rotated by hand to move a cursor on a computer screen.
   • light pen
     • handheld light-emitting device used for reading barcodes.
   • mic phone
     • an instrument for converting sound waves into electrical energy variations which may then be amplified, transmitted, or recorded.
   • scanner
     • a device for examining, reading, or monitoring something, in particula

2. output

   • monitor
     • a device used for observing, checking, or keeping a continuous record of something
   • web cam
     • a video camera connected to a computer, allowing its images to be seen by Internet users
   • speakers
     • playes music or noise loud or quret
   • charger
     • a device for charging a battery or battery-powered equipment
   • head phones
     • for listening to audio signals such as music or speech
   • • output
   • phone
     • contact someone by telephone it can hold a lot of data
   • printer
     • a machine for printing text or pictures especially one linked to a computer

3. storage

   • memorie stick
     • a type of memory card.
   • secure digital card
     • a flash drive.It is used to store data for digital cameras, camcorders, and other kinds of electronics.
   • memorie card
     • a small, flat flash drive used especially in digital cameras and mobile phones.
   • zip disk
     • removable floppy disk storage
   • compact disc
     • a small plastic disc on which music or other digital information is stored
   • hard drive
     • a disk drive used to read from and write to a hard disk

4. processing

   • cpu
   • gpu
   • processer
     • a machine that processes something
   • sound card
     • The sound card's four main functions are: as a synthesizer (generating sounds), as a MIDI interface, analog-to-digital conversion (used, for example, in recording sound from a microphone), and digital-to-analog conversion (used, for example, to reproduce sound for a speaker). The three methods of sound synthesis are through frequency modulation (FM) technology, wavetable , and physical modeling.
     • a device which can be slotted into a computer to allow the use of audio components
   • mother board
     • a printed circuit board containing the principal components of a computer or other device, with connectors for other circuit boards to be slotted into
   • network card
     • is a computer hardware component that allows a computer to connect to a network

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