As such, the computer architecture governs the design of a family of computers and defines the logical interface that is targeted by programming languages and their compilers. Maciej Brodowicz, in High Performance Computing, 2018 AbstractД¬omputer architecture is the organization of the components making up a computer system and the semantics or meaning of the operations that guide its function. This architecture either separates data and control over the two buses or shares them to increase overall performance (see Figure 1.10).

An improvement on the single shared central bus architecture is the dual bus architecture. A fourth computer architecture uses a common data and control bus to interconnect all devices making up a computer system (see Figure 1.9). A third computer architecture uses the main memory as the location in the computer system from which all data and instructions flow in and out. A second computer configuration is the central input/output controller (see Figure 1.8). The basic architecture has the CPU at the core with a main memory and input/output system on either side of the CPU (see Figure 1.7).

Different computer architecture configurations have been developed to speed up the movement of data, allowing for increased data processing. Computer architectures represent the means of interconnectivity for a computer's hardware components as well as the mode of data transfer and processing exhibited.

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