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Properties:
1. Monetary Value: Monetary value must be backed by either cash, bank - authorized credit cards or bank certified cashier's cheque.
2. Interoperability: E-cash must be interoperable i.e. exchangeable for other e-cash, paper cash, goods or services etc.
3. Retrievability : E-cash must be storable and retrievable.
4. Security : E-cash should not be simple to copy or tamper.
a. List the ACID properties. Describe the usefulness of each. b. During its implementation, a transaction passes by several states, until it finally commits or aborts. List all
Q. How does computer know that overflow has happened? Illustration: Add numbers 65 and 75 in 8 bit register in signed 2's complement notation. Here expected result is
Write an AWK program which takes the following input file and processes it. $cat data.txt John Do 111-1111 English 90 Maths 80 Alice Do 222-2222 English 90 Maths 90 Chemistry 93
In C++ terminology, all public methods in Java are virtual. Thus, all Java methods can be overwritten in subclasses except those that are declared final, private and static.
Operations from Functions As we know, function is actually operations on object. These functions could be simple and summarized on object model. Organise functions into oper
What is A cooperation model A cooperation model defines the way interdependencies are established by cooperative interactions. We recognize two basic roles services can play: c
Q. In PRAM model steps required for executing an algorithm? Subsequent steps are performed by a PRAM model whenever executing an algorithm: i) Read phase: First the N proc
Customer arrivals at a gas station can be characterized by exponential distribution with mean of 10 minutes. The amount of time they take to pump gas can be characterized by an ex
how to make a dfd of simple calculator?
A component has the time to failure distribution that is modelled as the Weibull distribution with shape parameter 3 and scale parameter of 36 months. This component is planned to
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