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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.
Define Enforcing Modularity for C Additionally, in C it is sometimes necessary to create modularity of design. C++ is very natural model for component based application design
Describe Three major roles of operating systems in business computer systems
my Operating System is windows trust but when the windows start say its windows xp. help pleaes
Q. Why is it important to scale up system bus and device speeds as the CPU speed increases? Answer: Consider a system which carries out 50% I/O and 50% computes. Doubling-up
Q. Describe why SSTF scheduling tends to favour middle cylinders over the innermost and outermost cylinders. Answer: The middle of the disk is the location having the smalles
Select any business process within this firm, describe it as a set of steps then fill the following table (flow, information, sender and receivern #Minimum 100 words accepted#
Define drawback of Distributed systems Reliability is a drawback of Distributed systems
Q. Explain the Concept of Process? A process is sequential program in execution. A process states the basic unit of computation for the computer. Components of process are:
ADVANTAGES AND INCONVENIENCES OF KLT Advantages: the kernel be able to simultaneously schedule many threads of the same process on many processors blocking
Define Middleware to Ease the Low-Level Protocol Burden Fortunately, many products are available today to ease the low-level protocol burden on the application programmer. Midd
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