An Ethernet LAN that uses switches to connect individual hosts or segments. In the case of individual hosts, the switch replaces the repeater and effectively gives the device full 10 Mbps bandwidth (or 100 Mbps for Fast Ethernet) to the rest of the network. This type of network is sometimes called a desktop switched Ethernet. In the case of segments, the hub is replaced with a switching hub.
Traditional Ethernets, in which all hosts compete for the same bandwidth, are called shared Ethernets. Switched Ethernets are becoming very popular because they are an effective and convenient way to extend the bandwidth of existing Ethernets.
- switching hub
Short for port-switching hub, a special type of hub that forwards packets to the appropriate port based on the packet’s address. Conventional hubs simply rebroadcast every packet to every port. Since switching hubs forward each packet only to the required port, they provide much better performance. Most switching hubs also support load balancing, so that […]
- swivel chair interface
Swivel chair is a slang term for a common interface work-around that involves manually entering data into one system and then entering the same data into another system. The term is derived from the practice of the user turning from one system to another using a swivel chair. The swivel chair interface can be eliminated […]
- Symmetric Encryption
A type of encryption where the same key is used to encrypt and decrypt the message. This differs from asymmetric (or public-key) encryption, which uses one key to encrypt a message and another to decrypt the message.
- Symmetric-Key Cryptography
An encryption system in which the sender and receiver of a message share a single, common key that is used to encrypt and decrypt the message. Contrast this with public-key cryptology, which utilizes two keys – a public key to encrypt messages and a private key to decrypt them. Symmetric-key systems are simpler and faster, […]
Derived from the words synchronize, synchronous, and electricity, the term synchicity is a slang term used to describe a seamless playback of parallel multimedia streams without jittering or interruption. The term is often used in film-making and multimedia circles to describe the degree of synchronization between separate multimedia sources : voice, music, video, or animation.