The process of imitating a real phenomenon with a set of mathematical formulas. Advanced computer programs can simulate weather conditions, chemical reactions, atomic reactions, even biological processes. In theory, any phenomena that can be reduced to mathematical data and equations can be simulated on a computer. In practice, however, simulation is extremely difficult because most natural phenomena are subject to an almost infinite number of influences. One of the tricks to developing useful simulations, therefore, is to determine which are the most important factors.
In addition to imitating processes to see how they behave under different conditions, simulations are also used to test new theories. After creating a theory of causal relationships, the theorist can codify the relationships in the form of a computer program. If the program then behaves in the same way as the real process, there is a good chance that the proposed relationships are correct.
- simultaneous multithreading
Abbreviated as SMT, simultaneous multithreading is a processor design technology that allows multiple threads to issue instructions each cycle. Simultaneous multithreading enables multithreaded applications to execute threads in parallel on a single multi-core processor instead of processing threads in a linear fashion.
- single-chip projector
Projectors using a single-chip produce color by spinning a wheel that contains red, green, blue and clear sections. This color wheel spins between the lamp and Digital Micromirror Device (DMD) to produce a composite full-color image. Contrast with three-chip projector which uses three DMDs.
- single-density disk
A low-density floppy disk. All modern floppies are double-density or high-density.
- single electron transistor
The single electron transistor or SET is type of switching device that uses controlled electron tunneling to amplify current. A SET is made from two tunnel junctions that share a common electrode. A tunnel junction consists of two pieces of metal separated by a very thin (~1 nm) insulator. The only way for electrons in […]
- single-sided disk
A floppy disk with only one side prepared for storing data. Single-sided disks have half as much storage capacity as double-sided disks. All modern floppies are double-sided.