Information about Scalar Processor
Scalar processors represent the simplest class of computer processors.[1] A scalar processor processes one data item at a time (typical data items being integers or floating point numbers). In a vector processor, by contrast, a single instruction operates simultaneously on multiple data items. The difference is analogous to the difference between scalar and vector arithmetic.
See also
Notes
- ^ The processors in question may be complete central processing units (CPUs) or separate arithmetic-logic units (ALUs). In some cases, a processor may be made up of one CPU and several ALUs, the combination forming a superscalar processor.
central processing unit (CPU), or sometimes simply processor, is the component in a digital computer capable of executing a program.(Knott 1974) It interprets computer program instructions and processes data.
..... Click the link for more information.
..... Click the link for more information.
In computer science, the term integer is used to refer to any data type which represents some subset of the mathematical integers. These are also known as integral data types.
..... Click the link for more information.
..... Click the link for more information.
In computing, floating-point is a numerical-representation system in which a string of digits (or bits) represents a real number. The most commonly encountered representation is that defined by the IEEE 754 Standard.
..... Click the link for more information.
..... Click the link for more information.
vector processor, or array processor, is a CPU design that is able to run mathematical operations on multiple data elements simultaneously. This is in contrast to a scalar processor which handles one element at a time. The vast majority of CPUs are scalar (or close to it).
..... Click the link for more information.
..... Click the link for more information.
scalars and relate to vectors in a vector space through the operation of scalar multiplication, in which a vector can be multiplied by a number to produce another vector.
..... Click the link for more information.
..... Click the link for more information.
spatial vector, or simply vector, is a concept characterized by a magnitude and a direction. A vector can be thought of as an arrow in Euclidean space, drawn from an initial point A pointing to a terminal point B.
..... Click the link for more information.
..... Click the link for more information.
instruction pipeline is a technique used in the design of computers and other digital electronic devices to increase their instruction throughput (the number of instructions that can be executed in a unit of time).
..... Click the link for more information.
..... Click the link for more information.
Parallel computing is the simultaneous execution of some combination of multiple instances of programmed instructions and data on multiple processors in order to obtain results faster.
..... Click the link for more information.
..... Click the link for more information.
superscalar CPU architecture implements a form of parallelism called Instruction-level parallelism within a single processor. It thereby allows faster CPU throughput than would otherwise be possible at the same clock rate.
..... Click the link for more information.
..... Click the link for more information.
central processing unit (CPU), or sometimes simply processor, is the component in a digital computer capable of executing a program.(Knott 1974) It interprets computer program instructions and processes data.
..... Click the link for more information.
..... Click the link for more information.
arithmetic logic unit (ALU) is a digital circuit that performs arithmetic and logical operations. The ALU is a fundamental building block of the central processing unit of a computer, and even the simplest microprocessors contain one for purposes such as maintaining timers.
..... Click the link for more information.
..... Click the link for more information.
superscalar CPU architecture implements a form of parallelism called Instruction-level parallelism within a single processor. It thereby allows faster CPU throughput than would otherwise be possible at the same clock rate.
..... Click the link for more information.
..... Click the link for more information.
This article is copied from an article on Wikipedia.org - the free encyclopedia created and edited by online user community. The text was not checked or edited by anyone on our staff. Although the vast majority of the wikipedia encyclopedia articles provide accurate and timely information please do not assume the accuracy of any particular article. This article is distributed under the terms of GNU Free Documentation License.
Herod_Archelaus
