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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.
Explain the features and utilities available in java, which makes it suitable for developing e-commerce applications. 1. In a network, the transmission of passive informati
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What is low-level formatting? Before a disk can store data, it must be divided into sectors that the disk controller can read and write. This process is known as low-level for
What is the decimal equivalent of hex number 1A53 ? Ans. 6739 is the decimal equivalent of Hex Number 1A53. From Hex Number to Decimal Number conversion is shown below: 1
Q. What are cosmic rays? The ionising radiation several times stronger than γ-rays entering the earth from all the directions from cosmic or interstellar space is known as cosm
State the term Availability - organisational security scheme What data needs to be available continually, compared to data which can be "off line" for limited periods. Th
Q. How will these instructions perform? Let's assume that above machine instructions are stored in three consecutive memory locations 1, 2 and 3 and PC contains a value (1) tha
What are different normalization forms? 1NF: Eliminate Repeating Groups Make a separate table for every set of related attributes, and give each table a primary key. Each fie
Q. Returns and Procedures definitions in 8086? 8086 microprocessor supports RET and CALL instructions for procedure call. CALL instruction not only branches to indicate address
Question: (a) Primary and secondary memory differs in their way they access data: (i) Mention the four generic access methods usually present in a computer system. (ii) E
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