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Question :
(a) What do you meant by a storage device?
(b) List 5 examples of storage devices and give their uses
(c) What are the differences between backup and archive?
(d) E-Chemist is a new Australian company that offers customers discount price medicines online, without the need for a prescription. The website allows the user to enter symptoms and then it suggests medications, which might be suitable. The customer can place different items in a shopping basket and pay for their order by providing credit card details and membership number.
Suggest a method of backup that the E-Chemist can use and state the reason why this method will be suitable in this case.
(e) Confidentially, integrity and availability of information are three main security issues arising from the use of this website. Explain how the terms in bold are related to security.
(a) Convert the following number to single precision IEEE 754 based on the procedure described in class and in the notes. Express the result in hexadecimal. Show all your work.
Give a suitable algorithm of non-repudiation in designing e-cash based system. The algorithm of non-repudiation in designing e-cash based system is as illustrated below: Ke
Q. What is interpreter? An interpreter translates each high-level-language statement into its equivalent set of machine-language instructions, which are then executed right awa
INT 21H supports about 100 different functions. A function is recognised by putting the function number in AH register. For illustration if we want to call function number 01 then
A combinational circuit has 3 inputs A, B, C and output F. F is true for following input combinations A is False, B is True A is False, C is True A, B, C
Explain Combinational logic circuits Ans. Combinational logic circuits:- (i) Outputs only depend upon present state of the input. (ii) No memory element present or no f
Advantages of EDI 1. EDI replaces paper transactions with electronic transactions therefore it saves times and speeds up transactions. 2. It gives a legal record of busine
Accumulator Architecture: An accumulator is anespecially designated register which supplies one instruction operand and receives result. Instructions in such machines are usually
Explain the term step-wise refinement. Ans: Step Wise Refinement Refinement is a method of elaboration. Here one starts with a statement of function that is described a
(a) Explain in a few sentences the difference between a natural frequency and a resonant frequency. Also clarify why for a specific system or component these frequencies may diff
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