Single instruction, single data

In computing, single instruction stream, single data stream (SISD) is a computer architecture in which a single uni-core processor executes a single instruction stream, to operate on data stored in a single memory. This corresponds to the von Neumann architecture.

Flynn's taxonomy
Single data stream
Multiple data streams
SIMD Subcategories[1]
See also

SISD is one of the four main classifications as defined in Flynn's taxonomy. In this system, classifications are based upon the number of concurrent instructions and data streams present in the computer architecture. According to Michael J. Flynn, SISD can have concurrent processing characteristics. Pipelined processors and superscalar processors are common examples found in most modern SISD computers.[2][3]

Instructions are sent to the control unit from the memory module and are decoded and sent to the processing unit which processes on the data retrieved from memory module and sends back to it.

References
  1. Flynn, Michael J. (September 1972). "Some Computer Organizations and Their Effectiveness" (PDF). IEEE Transactions on Computers. C-21 (9): 948–960. doi:10.1109/TC.1972.5009071.
  2. Quinn, Michael J. Chapter 2: Parallel Architectures, Parallel Programming in C with MPI and OpenMP. Boston: McGraw Hill, 2004. ISBN 0-07-282256-2
  3. Ibaroudene, Djaffer. Chapter 1: Motivation and History, Parallel Processing. St. Mary's University, San Antonio, TX. Spring 2008.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.