Front

account credentials

Back

The username that is used to log into a mail or other server and the account password.

Front

Advanced Configuration and Power Interface (ACPI)

Back

An interface that allows the operating system to control power management. Replaces Advanced Power Management (APM). Allows technicians to create power management schemes to get the best performance from a laptop.

Front

Airplane mode

Back

A setting that turns off all cellular, Wi-Fi, and Bluetooth radios on a mobile device.

Front

Apple ID

Back

A username required to set up an iOS device and used to access the Apple App Store, the iTunes Store, and iCloud.

Front

augmented reality (AR)

Back

Computer technology that creates a simulated environment as it superimposes images and audio over the real world in real time.

Front

backlight

Back

A light that supplies the main source of light to the screen of a laptop display. Without it, the image on the screen would not be visible. The backlight shines through the screen and illuminates the display. Two common types of backlights are cold cathode fluorescent lamp (CCFL) and LED.

Front

backup

Back

A copy of data that is made to protect the data. A phone backup, for example, includes application settings, text messages, voicemails, and other data types.

Front

backup storage location

Back

The place where iOS backups are stored; iTunes allows backups to be stored on the local computer hard drive or on the iCloud online service.

Front

Backup Straight from an iOS Device

Back

An iOS backup option that allows a user to configure an iOS device to upload a copy of its data directly to iCloud.

Front

Bluetooth

Back

A wireless industry standard that uses an unlicensed radio frequency for short-range communication, enabling portable devices to communicate over short distances.