Single instruction, multiple data (SIMD) is a type of parallel processing in Flynn's taxonomy.SIMD can be internal (part of the hardware design) and it can be directly accessible through an instruction set architecture (ISA), but it should not be confused with an ISA. SIMD describes computers with multiple processing elements that perform the same operation on multiple …

Single (football), Canadian football point; Single-speed bicycle; Transportation. Single-cylinder engine, an internal combustion engine design with one cylinder, or a motorcycle using such engine; Single (locomotive), a steam locomotive with a single pair of driving wheels; As a verb: to convert a double-track railway to a single-track railway