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Game Development Dictionary


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  Term Name Description


A collaborative effort to develop a robust, commercial-grade, full-featured, and Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as a full-strength general purpose cryptography library.


Open Shortest Path First. The OSPF is a (link state) routing protocol used by the Internet community. OSPF is classified as an Interior Gateway Protocol (IGP), this means that it distributes routing information between routers belonging to a single Autonomous System. OSPF is used over IP. That means that an OSPF packet is transmitted with an IP data packet header. The PROTOCOL field in the IP header is set to 89 for OSPF. OSPF is designated to be run internal to a single Autonomous System. Each OSPF router maintains an identical database describing the Autonomous System's topology. From this database, a routing table is calculated by constructing a shortest path tree. OSPF recalculates routes quickly in the face of topological changes, utilizing a minimum of routing protocol traffic. Separate routes can be calculated for each IP type of service. OSPF allows sets of networks to be grouped together. Such a grouping is called an area and it's topology is hidden from the rest of the Autonomous System. This information hiding enables a significant reduction in routing traffic. An area is a generalization of an IP subnetted network. All OSPF routing protocol exchanges are authenticated. This means that only trusted routers can participate in the AS's routing. Information Source


Point-to-Point-Protocol, used in internet connections.


Device used in networks to regenerate analog and digital signals. Analog signals are simply amplified, while digital signals are nearly reproduced.


A router is a piece of hardware that directs network traffic from one network to the other, and can also act as a firewall.


Symmetric Digital Subscriber Line. This is a high-speed internet connection which, like a cable modem, runs at very high speeds. Unlike conventional ADSL (Assymetric Digital Subscriber Line), however, an SDSL connection is "symmetric" -- it receives data just as fast as it sends data, and in both cases, this is very fast. However, SDSL requires its own special line -- whereas ADSL runs through a normal phone line -- and is very expensive.


Sequenced Packet Exchange. A reliable network protocol introduced by Novell Netware. Complimentary protocol would be IPX.


A switch acts like a hub in that it connects multiple network connections, but is "smarter" in that it knows where to send them, it cuts down on broadcasting.


Transmission Control Protocol, is used for reliable packet transfer. Packets are slower in nature as they are always checked and will arrive to the applications in the proper order.


A suite of protocols that is the standard on the Internet. There are 13 protocols overall, including telnet, FTP, TCP, UDP and RDP. See TCP and UDP.


Telnet is a protocol that allows you to connect to remote computers (called hosts) over a TCP/IP network (such as the Internet). You use software called a telnet client on your computer to make a connection; there is a telnet server on the remote host, which the telnet client negotiates with to establish a connection. Once connected, the client becomes a virtual terminal, and allows you to communicate with the host computer from your computer. In most cases, you'll be asked to log into the remote system. This usually requires an account on that system. Occasionally you can log in as guest or public without having an account. Telnet clients are available for all major operating systems.


User Datagram Protocol. An unreliable method of sending packets, UDP is faster but less stable in terms of reliable information than TCP. UDP is often used for faster transmission of data that is not useful at a later time.


The process of transfering information from a client to a host. Ex: When you send a file from your computer to an FTP site.


VNC stands for Virtual Network Computing. It is, in essence, a remote display system which allows you to view a computing 'desktop' environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. VNC's Website


Wide Area Network. A network that spans a great distance, usually over a public network, such as telephone. WANs are typically 2 or more connected LANs. The Internet is the largest.


Windows Sockets. An API for sockets through windows, which provides TCP/IP network programming support.