Nt1330 Unit 7

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Q. #.01:- Write the answer of the following questions.

1) Why do you study of OS?

Answer:
To make things a little more understanding, let’s look at what they have been doing altogether.
In the early days, they did not exist at all. Instead, earlier programmers merely loaded cards representing a job into memory and retrieved the results.
But as computers became more complex, it became necessary to have a layer between the programs and the hardware that could administer the interactions of one with the other. The fundamental job of an operating system has always been the same: it enables applications and their users to interact with the various hardware components including the hard disc, network, graphics card and memory.

2) Describe …show more content…
The master distributes tasks among the slaves, and I/O is usually done by the master only.
Multiprocessors can save money by not duplicating power supplies, housings, and peripherals. They can execute programs more quickly and can have increased reliability. They are also more complex in both hardware and software than uniprocessor systems.

3) How are network computers different from traditional personal computers?
Describe some usage scenarios in which it is advantageous to use network computers.

Answer:
A network computer relies on a centralized computer for most of its services. It can therefore have a minimal operating system to manage its resources. A personal computer on the other hand has to be capable of providing all of the required functionality in a standalone manner without relying on a centralized manner. Scenarios where administrative costs are high and where sharing leads to more efficient use of resources are precisely those settings where network computers are preferred.

4) What is the purpose of interrupts? What are the differences between a trap and an interrupt? Can traps be generated intentionally by a user program?

Nt1330 Unit 7

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Nt1330 Unit 7

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Nt1330 Unit 7 Essay

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Nt1330 Unit 7 Essay

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Nt1330 Unit 7 Summary

Layer 7: Application Layer - Characterizes interface to client forms for correspondence and information move in network - Gives institutionalized administrations, for example, virtual terminal, document and employment exchange and operations Layer 6: Presentation Layer - Most the distinctions of information arrangements between disparate frameworks - Indicates design independent information exchange position - Encodes and decodes information; Scrambles…

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Nt1330 Unit 7 Exercise 1

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Nt1330 Unit 7 Lab 1

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Nt1330 Unit 7 Exercise 1

unlimited; thus, both symmetric and public/private key cannot be brutally decrypted within a reasonable time period. Therefore, encrypted data are secure to a certain degree when the key is not known to the attackers[7]. IV NETWORK MODELS We use two different network models, random way point model [7] and group mobility model [18]. With the random way point model as the default setting, we also compare the performance of ALERT in the group mobility model. Fig.3.GPSR Failure and Hand Rules 4.1 Parameters…

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Nt1330 Unit 7 Exercise 1

2. Multiple path identification i. Neighbour identification When the nodes are deployed in the network, they periodically broadcast the RREQ message to its neighbor nodes. The RREQ message includes the node ID and its location information. The RREQ messages, based on each node identifies itself and also maintains the neighbors list which contains the nodes ID and location of each neighbor node. When source node wants to transmit data packet to destination, a RREQ message is transmitted to destination…

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Nt1330 Unit 7 Exercise 1

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