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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.
Explain Readers-writers problem. Readers-writers problem: Assume that a data object (as a file or record) is to be shared between several concurrent processes. The readers ar
Q. Explain the Passive Matrix in lcd technology? In a passive matrix arrangement LCD panel has a grid of vertical and horizontal conductors and every pixel is positioned at an
Define the term Electronic Cheques in briefly. The other mechanism for Internet payment is electronic cheques. Along with electronic cheques, there payer (either a business or
Dynamic screen sequence for a screen can be set using which commands? It uses two commands:- A) Set Screen B) Call screen.
Q. Average data transfer rate in floppy? A floppy is about 0.64 mm thick and is available in diameters 5.25 inch and 3.5 inch. Data are arranged in form of tracks and sectors.
Define Coupling? Coupling means the measure of interconnection between modules in a program structure. It depends on the interface problem between modules.
Multiprogramming is a rapid switching of the CPU back and forth among processes.
In structure chart whole application is divided into modules (set of program instructions) and modules are designed according to some principles of design. These are: Modularit
All nodes in the structure of LDB need not be defined in the ABAP/4 Dictionary False. One has to describe all nodes in the Dictionary or single has to select all nodes that a
Program testing and debugging: Program testing is the method of checking program, to verify that it satisfies its needs and to detect errors. These errors can be of any type-
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