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One reason to learn C and C++ is simply that so much software is written in these languages. A related, butmore fundamental reason, is that C and C++ are relatively low-level, allowing ef?cient use of resources as well as direct access to pointers, critical for operating systems.
C is low-level, fairly close to what-you-see-is-what-you-get, with effectively no runtime system. (A runtime system is essentially an abstraction layer between the operating system and the appli- cation.) C is ef?cient in code space and execution time.
C++ is an upward-compatible (almost completely) object-oriented extension of C. This allows software-engineering bene?ts, including the use of classes, encapsulation ("private"), templates ("generics"), and other modularity advantages.
Write short note on recovery regarding the file system in Windows 2000. In many file systems a power breakdown at the wrong time can damage the file system data structures so s
Q. How does the distinction among kernel mode and user mode function as a rudimentary form of protection (security) system? Answer: The distinction among kernel mode and user m
How does user specify block to be fetched in direct access? By specifying the relative block number, relative to first block in file, which is block 0.
is the operating system windows sometimes interupts
LRU approximation page replacement In this we are able to use the reference bit associated with the page entry to choose a page to be removed. The various algorithms used for
Define the “Throughput” of a system Throughput is Number of programs processed by it per unit time
What is parsing Parsing is the procedure of analyzing a text, made of a sequence of tokens, to define its grammatical structure regarding to a given formal grammar. Parsing is
case study:interprocess communication
Assume that P A , P B and P C are three distinguished program s . When P A is executed, it needs 10 ticks to complete its execution and it forks new processes executing P B at tick
The question of fairness, regarding page eviction, is a hard one. How do we decide what is fair? Many operating systems use global LRU, where pages from all processes are managed t
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