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Question
a) In multitasking Operating Systems, there are two kinds of multitasking such as the "Preemptive Multitasking" and the "Cooperative Multitasking". Explain the two mentioned multitasking type and give a reason which of the two is better.
b) Provide the four main functions of an operating system.
c) What is a modem and give two different types of modems.
d) There are many different types of threats concerning computer security. Explain two of such threats.
Minimize the logic function F(A, B, C, D) = ∑ m(1,3,5,8,9,11,15) + d(2,13) using NAND gate with help of K-map. Ans. Realization of given expression by using NAND gates: In
Q. What you mean by organizational effectiveness? Organizational effectiveness is measured in terms of productivity, structural flexibility, Employee involvement and Job satisf
Data buffering is quite helpful for purpose of smoothing out gaps in speed of processor and I/O devices. Data buffers are registers that hold I/O information temporarily. I/O is pe
Explain about subsystem and object of object oriented modeling A subsystem is a grouping of elements of that constitutes a specification of behaviour offered by other contained
Explain UDP (User Datagram Protocol). UDP utilizes a connectionless communication paradigm. It is an application of using UDP doesn't require preestablishing a connection befor
Q. Illustrate about Packet switching? Packet switching is used to avoid long delays in transmitting data over the network. Packet switching is a technique that limits the amoun
Define UFD and MFD. In the two-level directory structure, every user has own user file directory (UFD). Every UFD has a same structure, but lists only the files of a single u
What is the Analysis Techniques Object Modelling Object modelling is very significant for any object oriented development, object modelling shows static data structure of real
Which of following requires refreshing SRAM., DRAM., ROM. or EPROM. ? Ans. DRAM. requires refreshing.
Synchronized with a clock signal Memory system considerations Speed Cost Size of chip Power dissipation Memory controller Refresh Overhead
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