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Operating system:
An operating system is system software which may be viewed as an organized collection of software consisting of procedures for operating a computer and providing an environment for execution of programs. It acts as an interface between users and the hardware of a computer system. There are many important reasons for studying operating systems. Some of them are:
1) User interacts with computer through the operating system in order to accomplish his/her task since it is his/her primary interface with a computer.
2) It helps users to understand the inner functions of a computer very closely.
3) Many concepts and techniques found in the operating system have general applicability in other applications.
The introductory concepts of an operating system will be the main focus in this unit. The unit introduces several OS concept such as command interface, bootstrap loader, kernel, nanokernel, thin clients, multitasking and multiprogramming OS. To understand OS one needs to understand what kinds of services are provided by process management, I/O device management, memory management and file system. This topic is an important part of the unit. The end of unit goes into a brief history of evolution of OS, starting from serial processing, batch processing till date.
Question 1 Convert the following binary numbers to its specified number system 1101.11 (2) to octal 1111 (2) to decimal 110.11 (2) to hexadecimal 1011.11 (2) to
Question 1: a) A distinction is often made between computer architecture and computer organisation. Describe, using examples, the meaning of computer architecture. b) Name
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For a processor to be able to process an instruction, it requires to be able to determine what the instruction is asking to be carried out. For this to take place, the CPU requires
Operating system: An operating system is system software which may be viewed as an organized collection of software consisting of procedures for operating a computer and pro
• Multilevel feedback queue-scheduling algorithm enables a process to move among queues. It uses a number of ready queues and acquaintances a dissimilar priority with every queue.
Server In a network, the resources of computers comprising network are usually shareable. In fact, one of the main objectives of networking is to make the computing resources
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