Test: Input and Output Devices - Bank Exams MCQ

Using a device known as a data input device, users can provide data to a computer for analysis and storage while also issuing orders to the computer.

Input device converts human-understandable data and programs into a form that computers can understand and process.

A digitizer is a hardware device that receives analog information, such as sound or light, and records it digitally.

Development of the mouse began in the early 1960s by SRI International's Douglas Engelbart, while he was exploring the interactions between humans and computers. Bill English, then the chief engineer at SRI, built the first computer mouse prototype in 1964.

The number of pixels displayed per unit of length in an image is called the image resolution, usually measured in pixels per inch (PPI).

PPI (pixels per inch) is the input resolution of an image or photograph, and DPI (dots per inch) is the output resolution of a printer or imagesetter. When an image is reproduced as a true physical object, such as when printed onto paper, the term "DPI" refers to the physical dot density of the image.

QWERTY is the most popular keyboard layout for Latin-script alphabets.

PC keyboards have 12 function keys, F1 through F12. Many Apple desktop computer keyboards with a number pad have 19 function keys, F1 through F19.

Wireless mouse technology predominantly uses radio frequencies (RF) to send signals from the mouse to the computer.

A projector is an Output device that can take images generated by a computer and reproduce them on a large, flat surface.