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a) In multitasking Operating Systems, there are two types of multitasking such as the "Preemptive Multitasking" and the "Cooperative Multitasking". Describe the two mentioned multitasking type and give a reason which of the two is better.
b) Explain the four main functions of an operating system.
c) What is a modem and give two different kinds of modems.
d) There are several different types of threats concerning computer security. Explain two of such threats.
With neat diagrams explains the configuration of a step-by-step switching system. The schematic diagram for an exchange is specified in figure. Each subscriber is associated to
Describe queue? Ans: It is a type of data structure in which the data are stored in and retrieved on a First in first out (FIFO) basis. It grows in the direction of increasin
Three Logic Levels are used and they are High, Low, High impedance state. The high and low are normal logic levels & high impedance state is electrical open circuit conditions. Tri
In general, all public processes of a controller class are treated as action processes. If you require prevent this default behaviour, just decorate the public process with NonActi
State the optimal route of node Consider the node i which has path length K+1, with the directly preceding node on the path being j. The distance to node i is w(j, i) plus the
what is Ambiguity in single inheritance
Given a RAID 5 (block-level distributed parity) with k disks, how well will large block trnsmitted work? How well will it handle a high I/O request rate? Evaluate the performance t
State how Shared Memory is used for inter process communication. Define how ptrace is used by debuggers. What are modules? Explain how data mapping takes place among modules
Paged virtual memory: Mostly all implementations of virtual memory divide the virtual address space of an application program into pages; a page is a block that contains conti
What are the advantages of CMOS logic Ans: Advantages of CMOS Logic: (i) The power dissipation is mini-mum of all the logic families (ii) LSI and VLSI are possible
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