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.
A monitor is only used to display (output) information from a computer and provides no source of input. For this reason, a computer monitor is considered an output device. Note: Newer PCs have touchscreen monitors, which allow the user to interact with their computer by touching what is shown on the screen with their finger. If the monitor has touchscreen capabilities, it is considered an Input/Output devices.