IDS
Short for Intrusion Detection System, IDS is a security measure that helps notify an administrator or company when a device is being opened. For example, a corporate computer may be equipped with an IDS system that sounds an alarm and alerts the IT staff. This is helpful for companies who may be concerned about their employees opening the computer and stealing internal components such as RAM or installing something they should not have in the computer.
Also see: Alarm, Security definitions, SIO