start bit
In asynchronous communications, the bit that signals the receiver that data is coming. Every byte of data is preceded by a start bit and followed by a stop bit.
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- state
(n.) The last-known or current status of an application or a process. The terms maintaining state and/or managing state refer to keeping track of the condition of the process. The Internet is intrinsically stateless because each request for a new Web page is processed without any knowledge of previous pages requested. This is one of […]
- stateful
(adj.) Having the capability to maintain state. Most common applications are inherently stateful.
- Stateful Inspection
Also referred to as dynamic packet filtering. Stateful inspection is a firewall architecture that works at the network layer. Unlike static packet filtering, which examines a packet based on the information in its header, stateful inspection tracks each connection traversing all interfaces of the firewall and makes sure they are valid. An example of a […]
- stateless
(adj.) Having no information about what occurred previously. Most modern applications maintain state, which means that they remember what you were doing last time you ran the application, and they remember all your configuration settings. This is extremely useful because it means you can mold the application to your working habits. The World Wide Web, […]
- statement
An instruction written in a high-level language. A statement directs the computer to perform a specified action. A single statement in a high-level language can represent several machine-language instructions. Programs consist of statements and expressions. An expression is a group of symbols that represent a value.