Stands for “Input/Output” are any hardware or application system that’s made to deliver and obtain information to and from the computer hardware component.

For Example, it may deliver information but does not obtain any information back, when talking about equipment, a computer mouse is just an input device, along with a computer monitor can be an output device, it may show data but does not deliver information back towards the computer.

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The computer mouse as we know it today was invented and developed by Douglas Engelbart, with the assistance of Bill English, during the 1960’s and was patented on November 17, 1970