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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.
The client-server model firmly differentiates the roles of the client and server. According to this model, the client requests services that are provided by the server. The peer-to
(iv) Suppose that the TCP entity receives a 1.5 megabyte file from the application layer and that the IP layer is willing to carry blocks of maximum size 1500 bytes. Calculate the
A line holds only whitespace, probably with a comment, is identified as a blank line, and Python completely avoids it. In an interrelated interpreter session, you need to enter an
Question 1 Explain different functions of an operating system. Explain the evolution of operating systems Question 2 Explain process creation and process termination Ques
Library function : These are the functions supplied with the programming language. The code or definition of library functions does not have to be written in a user program w
Estimate the mean deflection of the QRS complex in each of the six standard leads (I, II, III, aVR, aVL, aVF) in Figure 1 and then estimate the mean heart vector for the normal hea
benefit a company derive from managing it own information technology
Question 1 What are the five subscriber-related signaling functions performed by the operator? Question 2 Compare Microprogrammed control and Hard-wired control Que
function of each status flags Z80 status flags
#after writing the script of rebuilting indexed on db server it gave output command executed succesfully does this mean i m done
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