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Concept of operating system:
An operating system is an essential software component of a computer system. The basic objectives of an operating system are to make the computer system convenient to use and to utilize computer hardware in an efficient manner. We can define an operating system as a large collection of software, which manages the resources of the computer system, such as memory, processor, file system and input/output devices. It keeps track of the status of each resource and decides which will have control over computer resources, for how long and when. In doing so, it provides two basic types of services:
1. It accepts requests from users and from the user's programs and executes their commands.
2. It optimally manages the hardware resources of the computer which may include CPU, main memory, hard disks, I/O devices, network interface card, etc.
Modify the class declaration of the Employee class to specify that the Employee class is an abstract class Declare an abstract method called CalculateNetPay that returns a double v
compare encoders and multiplers
what are the five precautions to be observed when handling magnetic media?
Concept of instruction: The CPU is a semiconductor integrated circuit chip consisting of a large number of transistors. In personal computers, the CPU is also referred by the
QUESTION 1 Write short notes on controlled vocabulary indexing. QUESTION 2 (a) List five types of abstracts. (b) Describe four types of abstracts. QUESTION 3
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In this technique, the kernel knows about and handles the threads. No runtime system is required in this case. In place of thread table in each process, the kernel has a thread tab
A car battery is of 12 V. Eight dry cells of 1.5 V each connected in series can give 12 V. But such cells are not used in starting a car. Why?
Time Sharing Time sharing allows a large number of users at various remote terminals to simultaneously use a centrally located computer for problem solving. Each user operates
Knowledge of the Environment We must distinguish between knowledge an agent receives through it's sensors and knowledge about the world from which the input comes. Knowledge a
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