gigabyte
Definition:
A gigabyte (GB) describes how much information can be stored on a device. Although the actual numbers are slightly higher, it is easiest to think of 1 gigabyte as 1,000 megabytes.
For reference, a one hour standard definition video typically takes about 1 gigabyte (1 GB) of storage space.
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Microsoft Word
A word processing application that allows you to create, edit, save and print documents. Typical uses of Microsoft Word include typing correspondence to friends or creating business documents. Microsoft Word is sold as a standalone product or as part of the Microsoft Office suite.