keyboard - In addition to the letters of the alphabet, this device also includes function keys to perform special tasks., mouse - By moving this device around a flat surface, the user can direct the movement of the cursor on the screen., scanner - It is a device that uses light sensors to digitize photographs and other illustrations., printer - It produces output on paper. The most common types are inkjet and laser., speakers - It transforms digital signals into sound waves which can be heard by the user as, for example, music and speech., touchscreen - This enables the user to activate the computer by using a finger to touch symbols or words on the screen., microphone - This converts sound waves into electronic signals which can be read by the computer and stored in its memory.,

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