A water-insoluble alcohol that occurs in plant oils (especially wheat germ oil), egg yolks, and liver, and is also produced synthetically. Alpha-tocopherol is the principal form of vitamin E in the body. Chemical formula: C 29 H 50 O 2. See more at vitamin E.
âInputâ is also easy-something put into a system. So in the technology world... An input device is any tool that feeds data into a computer. For example, a keyboard is an input device, whereas a display monitor is an output device. Mice, trackballs, and light pens are all input devices.
They are input devices. Anything you use to put information into the computer is an input device and covers everything from keyboards and the mouse to MICR, scanners, touch screens etc. An output device is anything that gives you information out like a monitor or printer / plotter.