Final answer:
Digital information processed into a useful form is called input. Spooling is a technique used to improve the processing efficiency of digital computers. Output refers to the result of processing digital information.
Step-by-step explanation:
Input is the term used to describe digital information that is processed into a useful form. It refers to the data that is provided to a computer for processing. For example, when you type a document on your computer keyboard, the text you type is considered input.
Spooling is a technique used to improve the processing efficiency of digital computers. It involves temporarily storing data in a buffer or a spool file before processing it. This allows the computer to handle multiple tasks simultaneously and improves overall system performance.
Output is the result of processing digital information. It refers to the data that is produced by a computer after performing a computation or operation. For example, when you print a document from your computer, the printed pages are considered output.