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. An input device is any hardware device that sends data to a computer, allowing you to interact with and control the computer. The picture shows a Logitech trackball mouse, an example of an input device. The most commonly used input devices on a computer are the keyboard and mouse. However, there are dozens of other devices that can also be used to input data into the computer. Below is a list of computer input devices that can be used with a computer or a computing device.