This document contains a series of questions and answers about various topics related to computers and IT. Some of the key points covered include:
- A CPU is an example of computer hardware.
- The type of graphics card installed can influence computer performance while the type of input device like a mouse does not.
- Common computer input devices are keyboards and joysticks, and common output devices include printers and monitors.
- Touch screens can be used for both input and output of data.
- Disks need to be formatted before storing files, and formatting erases existing data.
- An operating system controls devices and instructs how to display entered data.
- A graphical user interface uses windows, icons and a