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KBps – Kilobytes per second. A date flow rate indicating
10
exactly 2
bytes per second.
Kiosk – A stand-alone unit being used for delivering
information.
Laser Disc – An analog storage device that can read video and
sound.
Latency – The minimum time required to move data from one
point to another. Once latency is present, it cannot be
optimized. The cause has to be removed (as in using an internal
device rather than an external one to remove the latency caused
by the serial port). To maximize throughput, use the highest
bandwidth available.
LAN – Refers to local area networks (e.g. within a business),
which is a group of PCs and network devices dispersed over a
relatively limited area and connected by a communications link
that allows one device to interconnect with any other on the
network.
LED – Control unit that indicates function or malfunction.
Level – The signal amplitude in video.
Linear PCM – A non-compressed digital audio format. The
DVD specification allows for 16 to 24-bit Linear PCM audio
sampled at 48 or 96 kHz.
Luminance – A component, the black and white or brightness
element of an image.
Macro block – 16 x 16 pixel squares being used in the MPEG
compression scheme.
Mbps – Megabits per second. A data flow rate indicating
6
exactly 10
bits per second (bps).
MBps – Megabytes per second. A date flow rate indicating
20
exactly 2
bytes per second (Bps).
MJPEG or Motion JPEG – A deviation from the JPEG
specification where still image compression is used to compress
motion video.
Appendix D • Glossary of Terms
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