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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.
Why use a DTD ( Document Type Definition )? XML gives an application independent method of sharing data. Along with a DTD, independent group of people can agree to employ a com
The desired level of coupling is:- Data coupling
What are the differences between a Database index and a match code? Match code can have fields from several tables whereas an index can have fields from only one table.
Q. What is Hard Drive Interface? Secondary storage devices need a controller to proceed as an intermediary between device and rest of the computer system. On some computers the
Q. Explain about fundamental nature of a Computer? The fundamental nature of a Computer is as an information transformer. So a computer should be able to take input and process
Hyper-threading works by duplicating those sections of processor that kept the architectural state-but not duplicates the main implementation resources. This allows a Hyper-threadi
specialization,ggeneralization and aggregation of railway reservation system?
Q. Explain the Use of functions in parallel programming? include "pvm3.h" main() { int cc, tid, msgtag; char buf[100]; printf("%x\n", pvm_mytid());
Multiprogramming or multitasking? Ans: The OS manages the concurrent execution of many application programs to make best possible use of computer resources. This pattern of si
Q. Factors of Information system which affect the business? There are several factors which affect the business such as - a) Threats of fresh entrants. b) Rivalry surro
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