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PC World was a British retail chain of mass market computer megastores. Established in November 1991, it became part of Dixons Retail in February 1993, and then part of Dixons Carphone, after the merger of Dixons Retail and Carphone Warehouse in August 2014. During its final years, the company's remaining physical stores were within co-branded ...
A functional block diagram, in systems engineering and software engineering, is a block diagram that describes the functions and interrelationships of a system. The functional block diagram can picture: [ 1] functions of a system pictured by blocks. input and output elements of a block pictured with lines.
A functional flow block diagram ( FFBD) is a multi-tier, time-sequenced, step-by-step flow diagram of a system 's functional flow. [ 2] The term "functional" in this context is different from its use in functional programming or in mathematics, where pairing "functional" with "flow" would be ambiguous. Here, "functional flow" pertains to the ...
Computer architecture. Block diagram of a basic computer with uniprocessor CPU. Black lines indicate control flow, whereas red lines indicate data flow. Arrows indicate the direction of flow. In computer science and computer engineering, computer architecture is a description of the structure of a computer system made from component parts. [ 1]
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Example of a Structured Chart. [ 1] A structure chart (SC) in software engineering and organizational theory is a chart which shows the breakdown of a system to its lowest manageable levels. [ 2] They are used in structured programming to arrange program modules into a tree. Each module is represented by a box, which contains the module's name.
The function model in the field of systems engineering and software engineering originates in the 1950s and 1960s, but the origin of functional modelling of organizational activity goes back to the late 19th century. In the late 19th century the first diagrams appeared that pictured business activities, actions, processes, or operations, and in ...
Ladder logic was originally a written method to document the design and construction of relay racks as used in manufacturing and process control. [ 1] Each device in the relay rack would be represented by a symbol on the ladder diagram with connections between those devices shown. In addition, other items external to the relay rack such as ...