Index | A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
| scalability: | a quality such that the scale on which a system is used can increase without modification to the system itself |
| scaling transparency: | a type of transparency that allows the system and applications to expand in scale without change to the system structure or the application algorithms |
| scenario: | a sequence of events that occur during one particular execution of a system |
| sequencer: | a process to which all messages are sent before being multicast so that the sequencer can assign and identifier to each message before sending |
| sequential consistency: | a property where memory operations appear to occur one at at time in the order in which they're expected to happen |
| serial equivalence: | a property of some transactions such that concurrent execution has the same effect as serial execution |
| server: | hardware or software that provides some kind of service to other hardware or software |
| service: | a group of related functions that work together to provide a functional capability. |
| shared-memory multiprocessor: | an architecture that contains several independent processors, each being able to execute a separate program |
| sheet: | the mechanism for breaking large objects models into a series of pages |
| significant digits: | the digits required to represent the accuracy of an approximate number, beginning with the leftmost non-zero digit and ending with the rightmost digit |
| simplex: | a term applied to data transmission in which data can only sent, and not received |
| slotted ring: | a LAN in which the computers are linked in a ring structure and data is transmitted in small, fixed-sized packets from node to node around the ring |
| socket address: | a communication identifier that consists of a local port number and an Internet address |
| specialization: | the creation of subclasses from a superclass by refining the superclass |
| state: | the values of the attributes and links of an object at a particular time |
| state diagram: | a directed graph in which nodes represent system states and arcs represent transitions between states |
| stateless server: | a server that can tolerate crashes by not holding information on behalf of particular clients |
| stream: | a source or destination of data that may be associated with a piece of hardware |
| strict two-phase locking: | two-phase locking in which all locks are held until the current transaction commits or aborts |
| stub procedure: | a procedure that converts a local procedure call to a remote procedure call |
| subsystem: | a major component of a system organized around some coherent theme. A system may be divided into subsystems using either partitions or layers. |
| synchronous communication: | a form of communication in which the sending and receiving processes synchronize at every message |
| system: | an organized collection of components that interact |
| system design: | the first stage of design, during which high-level decisions are made about the overall structure of the system, its architecture, and the strategies used to implement the system |
| system development life cycle: | the process of creating a hardware/software system from its conception, through analysis, design, implementation, testing, and maintenance. |