Glossary – Milestone Basis+ 6.5 User Manual
Page 147

Milestone XProtect Basis+ 6.5; Administrator’s Manual
Glossary
A
Administrator: 1) System administrator. 2) The main application used by surveillance system
administrators for configuring the surveillance system server, upon installation or whenever
configuration adjustments are required, e.g. when adding new cameras or users to the system.
API: Application Program Interface; a set of tools and building blocks for creating or customizing
software applications.
Aspect Ratio: Height/width relationship of an image.
ATM: Abbreviation for Automatic Teller Machine, i.e. a cash dispenser.
AVI: A popular file format for video. Files in this format carry the .avi file extension.
B
Browser: 1) A software application for finding and displaying web pages. 2) In XProtect Basis+
specifically, the term Browser may occasionally be used when referring to the Viewer application,
as the Viewer was formerly known under the name Browser.
C
Carousel: Feature for displaying video from several cameras, one after the other, in a single
camera slot. The required cameras as well as the intervals between changes are specified by the
surveillance system administrator. If configured, the carousel feature is available in the Smart
Client.
Codec: A technology for compressing and decompressing audio and video data, for example in an
exported AVI file. MPEG and Indeo are examples of frequently used codecs.
D
DirectX: A Windows extension providing advanced multimedia capabilities.
DLK: Device License Key; a registration code required for every device (IP network camera or IP
video encoder) installed on the surveillance system. If you do not have system administration
responsibilities, you do not have to deal with DLKs. System administrators obtain DLKs as part of
the software registration process. System administrators use the Import DLKs... feature in the
Administrator application to import DLKs into the surveillance system.
DNS: Domain Name System; a system that allows translation between alphabetic host names
(example: mycomputer) or domain names (example: www.mydomain.com) and numeric IP
addresses (example: 192.168.212.2). Many people find alphabetic names easier to remember than
numeric IP addresses.
Driver: A small program used for controlling/communicating with a device.
DST: Daylight Saving Time (a.k.a. summer time), the practice of advancing clocks in order for
evenings to have more daylight and mornings to have less.
DVR: Digital Video Recorder.
F
FPS: Frames Per Second, a measure indicating the amount of information contained in motion
video. Each frame represents a still image, but when frames are displayed in succession the illusion
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