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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.
Explain about the network security. Network security implies the protection of networks and their services through unauthorized access, destruction or disclosure, modificati
Write short note on Quantization. Quantization: This is the first step in PCM. The whole amplitude range of the modulating signal is divided in a number of standard levels term
How does the system handle roll areas for external program components? Transactions run in their own roll areas. Reports run in their own roll areas. Dialog modules run
What is replacement algorithm? When the cache is full and a memory word that is not in the cache is referenced, the cache control hardware must decide which block should be del
Problem 1 a) Give three reasons why connecting peripherals directly to the system bus are not a good practice. b) Name five categories in which the major functions on requ
What are the characteristics of the E-Cash? These kinds of payments, turning the Internet within a transaction oriented forum, need mediums which are easy and cheap (through a
Perform 2's complement subtraction of (7) 10 - (11) 10 . Ans. 2's Complements Subtraction of (7) 10 - (11) 10 Firstly convert the decimal numbers 7 and 11 to there binary e
Explain Top down parsing. Top down parsing: Specified an input string, top down parsing tries to derive a string identical to this by successive application of grammar rule
Explain the Client- Server Interface Using Procedures Developers must realize that client-server impose a division of labor in application programs. Programs must be broken up
function nor gates W=A,B,C,D=~(AB)*~(CD)
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