Abstract
<dm:abstracts xmlns:dm="http://www.elsevier.com/xml/dm/dtd"><ce:abstract xmlns:ce="http://www.elsevier.com/xml/common/dtd" view="all" class="author" id="aep-abstract-id4"><ce:section-title>Publisher Summary</ce:section-title><ce:abstract-sec view="all" id="aep-abstract-sec-id5"><ce:simple-para id="fsabs015" view="all">Digital systems are used to process discrete elements of information. They are built from digital electronic circuits that process discrete electrical signals using simple logic and arithmetic operations. A digital electronic system can also be used to hold or store discrete elements of information and this gives the system a memory capability. The ability to store information or data and to process the data by logical or arithmetic operations is central to the design of nearly all digital information-processing systems including digital computers. A digital system can be classified by the way in which its sequence of operations is implemented. A digital system is considered to be hardwired if the sequence of operations is governed by the physical interconnection of the digital processing elements. The flexibility of hardwired systems has been much improved by the introduction of programmable (or configurable) logic devices such as Programmable Logic Arrays (PLAs) and Field Programmable Gate Arrays (FPGAs) that can be programmed or configured to implement an application-specific digital signal processing function. A digital system is considered to be genuinely programmable if a prescriptive program of instructions (software) can be used to control the data-processing function of the system. This type of system usually incorporates a general-purpose processing element which is programmed to implement a specific function in a predetermined way.</ce:simple-para></ce:abstract-sec></ce:abstract></dm:abstracts>
Published Version
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