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.
Any number of computer peripherals can be classified as input devices. An input device is simply something that is used to interact with, or provide data to, the computer, as opposed to an output device that displays data for the user. Everyone that has used a computer has also used an input device, such as a keyboard or mouse. Without input devices, there would be no way to interact with computers. The most common input devices are the mouse and keyboard. However, joysticks, touch screens, webcams, and microphones are considered input devices as well.