Bit

the smallest unit of information on a machine.

American Standard Code for Information Interchange (ASCII)

the numerical representation of a letter or an action made by the computer.

Worksheet

a collection of cells where you actually keep and change the data.

Workbook

The MS Excel file in which you store related data.

Range

A range is a group of cells in a worksheet that have been highlighted.

Merge

To combine something with another.

Header row

the gray colored column containing the numbers used to identify each row