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Give the decription of user case
A use case is a description of the set of the sequence of actions which a system performs to produce an observable result which is of a value to an actor. The user is known as actor and process is depicted by use case. The notation for use case is below:
Figure: Relationship between actor and use case
Develop a regular expression for Integer and Identifier (i) A regular expression for integer is [+ | -] (d)+ (ii) A regular expression for identifier is l(l | d)*
What is metadata? Metadata is data that explains another data. Class definition is metadata. Models are inherently metadata as they explain the things being modeled.
What is the use of status command, data output command, and data input command. A status command is used to test a variety of status conditions in the interface and the periphe
Consider the following page reference and reference time strings for a program: Page reference string: 5,4,3,2,1,4,3,5,4,3,2,1,5,..... Show how pages will be allocated using t
In MS-DOS device drivers are installed and loaded dynamically it implies that they are loaded into memory when computer is started or re-booted and accessed by operating system as
Q. Explain the Hard Disk Controller & Floppy Disk Controller with necessary diagrams. Q. Explain Input/Output Techniques (Data Transfer Techniques).
How do I prevent selected parameters of a module from being overridden during instantiation? If a specific parameter within a module must be prevented from being ov
A model for parallel programming is an abstraction and is machine architecture independent. A model can be executed on several hardware and memory architectures. There are various
Can a .NET web application consume Java web service? Yes Offcourse.Actually Webservices are independent to language. It depends on WSDL and SOAP. so any single can develope t
Explain the uses of thumbwheels Two thumbwheels are usually required to control the screen cursor in its horizontal and vertical position respectively. As the name implies,
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