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a. List the ACID properties. Describe the usefulness of each.
b. During its implementation, a transaction passes by several states, until it finally commits or aborts. List all possible sequences of states by which a transaction may pass. Describe why each state transition may occur.
Determine about the three-state gate A three-state gate is a digital circuit which shows three states. Two of them are equivalent to logic 1 and 0. The third one is a high im
Not Recently Used Page Replacement Algorithm The not recently used abbreviated as NRU page replacement algorithm works on the subsequent principle: while a page is referenced,
? Actor: Actor shows an external user / end user who interact with the system. ? Object: Object is shown by one of components of the system. ? Unit: A unit is a subsystem, o
Explain Sequential Sharing In this sharing method, a file can be shared by just one program at a time, i.e. file accesses by P1 and P2 are spaced out over time. A lock field ca
In structure chart whole application is divided into modules (set of program instructions) and modules are designed according to some principles of design. These are: Modularit
Vector Processing with Pipelining Because in vector processing vector instructions execute the similar computation on various data operands repeatedly, vector processing is the
Flynn's Categorization Flynn's Categorization is based on multiplicity of data streams and instruction streams observed by CPU at the time of program execution. Let I s and D
What are the various layers of a file system? The file system is composed of lots of dissimilar levels. Each level in the design uses the characteristic of the lower levels to
Q. What do you mean by Daisy chain? This scheme provides a hardware poll. With this scheme, an interrupt acknowledge line is chain by different interrupt devices. All I/O inter
Q. What is Compact Disk Read Only Memory? This technology has evolved out of entertainment electronics market where cassette tapes and long playing records are being replaced b
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