In an RFID system the transponder which contains the data to be transmitted is called an RF tag. Active tags have an internal battery to power them and are usually RW (tag data can be rewritten and/or modified). Active tags generally can transmit their data over a longer distance, the tag itself is larger than a passive tag, and has a limited operational lifespan.
The opposite of an active tag is a passive tag.
- actual size
Scanner term used to describe one scaling control option that will scan the document or image at actual size (not enlarged or reduced using zoom in and zoom out features).
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 […]
- 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 […]