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A projector is an output device that takes images generated by a computer or Blu-ray player and reproduce them by projection onto a screen, wall, or another surface. Projectors can produce either slides like a presentation for work or school and moving images like videos.

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DVD-RAM is a DVD optical disk storage technology on which data can be continually read, erased and written.

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A media processor, mostly used as an image/video processor, is a microprocessor-based system-on-a-chip which is designed to deal with digital streaming data in real-time rates.

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A touch pad is a device used for pointing controlling input positioning on a computer display screen. It is an alternative to the mouse.

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A trackball is a pointing input device . It consists of a ball held by a socket containing sensors to detect a rotation of the ball about two axes. It is like an upside-down mouse with a ball that sticks out.

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A USB Flash drive are small integrated chips that can be electronically programmed and erased. It is used for transferring and storing data.

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Headphones are connected to the computer, it receives information that is outputted from the computer.

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Digital Signal Processors or (DSP) Take real-world signals like voice, audio, video, temperature, pressure or position that have been digitized and then mathematically manipulated.