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Software Engineering - Layered Technology
Although various authors have developed personal definitions of software engineering, a definition given by Fritz Bauer at the seminal conference on the subject still provides a forum for discussion:
"Software engineering is the establishment and use of sound engineering principles so as to obtain economically software that is reliable and works efficiently on real machines. "
Every reader will be tempted to add further to this definition. It says very little about the technical aspects of software quality; it does not directly state the need for customer satisfaction or in-time product delivery; it omits mention of the significance of measurement and metrics; it does not tell the significance of a mature process. And yet, Bauer's definition gives us a baseline. What are the "sound engineering principles" that can be applied to computer software development? How do we "economically" construct software so that it is "reliable"? What is the requirement to develop computer programs that work "efficiently" on not one but various different "real machines"? These are the questions that persistently challenge software engineers.
The IEEE [IEE93] has developed a more complete definition when it states;
"Software Engineering (1) The application of a systematic, disciplined, quantifiable approach to the operation, development, and maintenance of software that is, the application of engineering to software. (2) The study of approaches as in (1) ".
What is a resource-allocation graph? Deadlocks can be described more precisely in terms of a directed graph known as a system resource allocation graph. This graph having of a
In cyclic redundancy checking CRC is the? Checking CRC, in cyclic redundancy is the remainder. Normal 0 false false false EN-IN X-NONE X-NONE
Control Unit (CU) : Every PEs are under the control of one control unit. CU controls the inter communication among the PEs. There is a local memory of CU also known as CY memory.
Offset Litho Duplicating Equipment Required Duplicator Plate-making equipment (not always, essential), e.g. printing box and processing unit Plates Paper Ink
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Qualifications of security professionals For the security professionals, it is essential that they have adequate freedom to check the security measures and enforce them and
An EFI boot manager is also used to select and load the operating system, removing the require for a dedicated boot loader mechanism
Smart Card & E-Cash E-cash storable smart cards can kept and dispense cash electronically, making bills and coins lesser essential. It transfers funds over phone lines, making
Define deadlock? Deadlock is a condition, wherein processes never finish executing and system resources are tied up, preventing another job from beginning. A process requests r
Any data storage device. This having of your CD-ROM drive, hard disk drive and floppy disk drive.
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