Taxpayers typically do not look at the Internal Revenue Service as a lifesaver. However, if you have lost your tax ID certificate -- also know as your Employer Identification Number (EIN) -- only the IRS can provide a verification letter confirming your number. Typically, businesses need government confirmation of their EIN when opening new accounts with banks and vendors.
Below we discuss the variety of peripheral devices used for computer input and output. Input Devices. Keyboard. The computer keyboard is used to enter text information into the computer, as when you type the contents of a report. The keyboard can also be used to type commands directing the computer to perform certain actions.
Input device. A common computer input device, a keyboard. A user presses a key which transfers information to a computer. In computing, an input device is a peripheral (piece of computer hardware equipment) used to provide data and control signals to an information processing system such as a computer or information appliance. Examples of input devices include keyboards, mouse, scanners, digital cameras and joysticks.