active sheet

The sheet that you're working on in a workbook. The name on the tab of the active sheet is bold.

active cell

The selected cell in which data is entered when you begin typing. Only one cell is active at a time. The active cell is bounded by a heavy border.

3-D walls and floor

The areas surrounding many 3-D chart types that give dimension and boundaries to the chart. Two walls and one floor are displayed within the plot area.

3-D reference

A reference of field splitting two or more worksheets in a workbook.

Fastboot

A tool to flash system images (.img files) to the G1 from a command line.

ADB

This is a part of the Android SDK that runs commands on the G1 using the phone terminal itself.

Android SDK

Systems's Developper Kit! For example phone Android, or other devices Android are up-to-date.

Partition

Disk partitioning is the act of dividing a hard disk drive into multiple logical storage units referred to as partitions, to treat one physical disk drive as if it were multiple disks.