Matrox 4Sight User Manual page 200

200 Appendix E: Glossary
RGB
A color space that represents color using the primary colors
(red, green and blue) as components.
Subnet Mask
The sequence of numbers that the router uses to determine
which parts of the 32-bit IP address is specific to the
subnetwork (that is, common to all of the machines on the
network) and should be used for transmitting the
information "packet" to the subnetwork. This mask saves the
router from having to handle the entire 32-bit IP address;
instead, it can look at only the bits enabled (set to "1") by the
mask. For example, if the network and subnet addresses are
contained in the upper 24 bits, and the specific host address
is contained in the lower 8 bits, then you can convey this
information to the router to allow quicker transmission to the
subnet by passing the following mask value: 255.255.255.0
(11111111.11111111.11111111.00000000).
TCP/IP (Transmission Control Protocol/ Internet Protocol)
The basic communication protocol (or language) of the
Internet that has become the global standard for network
communications since it ensures faithful data transmission.
TCP/IP uses the client-server communication model, in which
a computer user (client) makes requests and is provided
services by a network computer (server). TCP/IP is a
two-layered protocol. TCP is the upper transport layer, which
ensures delivery of the entire file/message. TCP manages the
assembly of files/messages into "packets" that are
transmitted to and received by another TCP layer. That TCP
layer then reassembles the packets into its original format.
IP is the lower network layer, which routes the data to
different destinations (LANs or WANs) based on the network
address. TCP/IP is a routable protocol, which ensures that
all messages contain the address of both the destination
computer (station) and destination network. This makes it
possible for messages to be transmitted to multiple networks.