active matrix display
A type of flat-panel display in which the screen is refreshed more frequently than in conventional passive-matrix displays. The most common type of active-matrix display is based on a technology known as TFT (thin film transistor). The two terms, active matrix and TFT, are often used interchangeably.
- active partition
The primary partition on a hard drive that typically contains and boots the operating system.
- active reconnaissance
(ak´tiv ri-kon´&-zents) (n.) The process of collecting information about an intended target of a malicious hack by probing the target system. Active reconnaissance typically involves port scanning in order to find weaknesses in the target system (i.e., which ports are left vulnerable and/or if there are ways around the firewall and routers). The process of […]
- active tag
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 […]
- 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 […]