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.
The computer keyboard is used in conjunction with the mouse as the primary input device. numeric keypad, navigation and editing keys, directional keys, function keys, and the escape key (ESC). (ALT), and the Windows key ( ). The CTRL, ALT, and Windows keys are usually found on each end of the space bar.