User's Manual

PERS Temp
24
Term Description
OS Operating system.
A collection of software that manages computer hardware resources and
provides common services for computer programs.
PIR An Essence Term.
A We.R
™
system Motion Detector peripheral device.
RF Radio Frequency.
A rate of oscillation in the range of about 3 kHz to 300 GHz. This range
corresponds to the frequency of radio waves, and the alternating
currents which carry radio signals.
RFID Radio-Frequency Identification.
Wireless non-contact system using radio-frequency electromagnetic
fields to transfer data from a tag attached to an object for automatic
identification.
RIA Rich Internet Application.
Web application with many characteristics of desktop application.
SIM Subscriber Identification Module.
An integrated circuit that securely stores the International Mobile
Subscriber Identity (IMSI) and the related key used to identify and
authenticate subscribers on mobile telephony devices (such as mobile
phones and computers).
SMS Short Message Service.
A text messaging service component of phone, web, or mobile
communication systems. It uses standardized communications protocols
that allow the exchange of short text messages between fixed line or
mobile phone devices.
SK2 An Essence Term.
A We.R
™
system Smoke Detector peripheral device.