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A session is a logical object formed by the PHP engine to permit you to preserve data across subsequent HTTP requests.
There is only one session object available to your PHP scripts at any time. Data saved to the session by a script can be retrieved by the similar script or another script when requested from the similar visitor.
Sessions are commonly used to kept temporary data to permit multiple PHP pages to offer a complete functional transaction for the similar visitor.
Discuss about the Bus and Memory Transfer A read action implies transfer of information to outside environment from a memory word, whereas storage of information inside memory
Q. Interrupt - Driven Input-output? Problem with programmed I/O is that processor has to wait a long time for I/O interface to see whether a device is free or waits until compl
What is the difference between a structure and a table? Structures are constructed the almost the similar way as tables, the only dissimilarity using that no database table is
Q. Amdahl Law to measure speed up performance? Remember that speed up factor assists us in knowing relative gain attained in shifting execution of a task from sequential comput
Your shell must accept commands from the user. The first step to implement this will be reading a line of input. This section will focus on what to do with the line of input after
Instruction Level It refers to condition where different instructions of a program are implemented by different processing elements. Most processors have various execution unit
What is multiprogramming or multitasking? The operating system manages the concurrent implementation of several application programs to make the best possible uses of computer
Basic logic gates Introduce the basic logic gates in terms of a) their function, b) their circuit symbol, c) their truth table and d) their equivalent in Boolean a
Problem 1 (a) List and describe the characteristics of mainframes, minicomputers and microcomputers. (b) Briefly describe what is meant by electronic commerce and what b
Q. Determine the complete OR gate and AND gate decoder count for an IC memory with 4096 words of 1 bit each, using the Linear select memory organization and Two dimensional Memory
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