The part of a hard disk to which the read/write arms attaches. All the heads are attached to a single head actuator, also called an actuator arm, that moves the heads around the platters. Older hard drives used a stepper motor actuator, which moved the heads based on a motor reacting to stepper pulses. Modern hard drives use a voice coil actuator, which controls the movement of a coil toward or away from a permanent magnet based on the amount of current flowing through it. This guidance system is called a servo.
- ad targeting
In online advertising, ad targeting refers to the practice of advertisers attempting to reach (target) a specific desired consumer audience.
(1) Short for expansion board. (2) The circuitry required to support a particular device. For example, video adapters enable the computer to support graphics monitors, and network adapters enable a computer to attach to a network. Adapters can be built into the main circuitry of a computer or they can be separate add-ons that come […]
- adaptive hypermedia
Adaptive hypermedia, abbreviated as AH, is the next-generation of hypermedia applications. Where hypermedia serves the same pages and the same set of links to all users, adaptive hypermedia improves the usability of hypermedia by building a model of the preferences and knowledge of an individual user and uses this information to adapt the hypertext to […]
- Android Debug Bridge
Short for Android Debug Bridge, adb is a command-line debugging application shipped with the Android SDK. Adb provides tools to browse the device, copy tools on the device, and forward ports for debugging.
(1) A component you can add to a computer or other device to increase its capabilities. Add-ins can increase memory or add graphics or communications capabilities to a computer. They can come in the form of expansion boards, cartridges, or chips. The term add-in is often used instead of add-on for chips you add to […]