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Nt1330 Unit 1 Study Guide

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1) What is an Operating system?
An Operating System is a program that, after being initially loaded into the computer by a boot program, it manages all the programs in a computer where the programs are called application programs, that make use of the operating system by making requests for the services by a defined service application program interface (API). We can say that an Operating System is an interface between hardware and software.
2) Why is the Operating System viewed as a resource allocator & control program?
A computer system has many resources, like Hardware and Software that might requires solution of a problem, like CPU time, Memory spaces, File storage space, Input and Output devices, for these purpose operating systems acts as a manager to …show more content…
• Memory uses 67 percentages of the CPU switching.
• The disk uses 67 percentages of the CPU switching.
• The printer uses 67 percentages of the CPU switching.
• Elapsed time of the CPU switching is 15 minutes.
• The throughput rate of the CPU switching is 12job/hr.
• Mean response time of the CPU switching is 10 minutes.

4) What is an Interactive computer system?
Interactive computer systems are the programs that allow users to enter data or command,(Accepting input from humans). Most popular programs, such as word processors and spreadsheet, are interactive computer system programs. Interactive computer system provides direct communication between user and the system, user gives instruction to operating system or program using a keyboard or mouse and waits for a result.

5) What are multiprocessor systems & give their advantages?
Multiprocessor System:
Multiprocessor systems are system that have more than one processor in its close communication, sharing the computer bus, the clock and sometime memory and peripheral devices . Multiprocessor systems are also known as parallel systems or tightly coupled systems.

Advantages:
• Increased

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