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Intranets are mainly "small" Internets. They use same network facilities that Internet does, though access is restricted to a limited sphere. For example, a company can set up an intranet within confines of the company itself. Access can be tightly controlled and limited to authorized staff and employees. There is no connection to Internet or any other outside network. Functions such as web sites, downloads and file uploads and e-mail is available on intranets within confines of network. Because frivolous sites are no longer available, there is no employee time lost because of accessing them. There is, of course, limitation of the networking area. Very benefit of restricting access to all of facilities available on Internet also restricts communication to other desirable locations. This is where extranet steps in. An extranet is network which connects a number of intranets in a truly mini-Internet Access is extended to all intranets connected through extranet, though, again, not to Internet. Extranets requires a constant Internet connection as well as a hypertext transfer protocol (http) server.
Necessary features of an algorithm: 1.Input: The algorithm should take zero or more input. 2. Output: The algorithm should generate one or more outputs. 3. Definiteness:
Write down different system calls for performing different kinds of tasks. The major types of system calls are given as: Process Control: These kinds of system calls are
What are program-invisible registers? Ans: the local and global descriptor tables are found in the memory system. To access and specify the address of these tables, program inv
Write a program to input an address i.e. 20 Hex and read the byte (char) contents of that address Answer include void main() { char prompt; Date: 26th August 2012
Q. Describe about Physical Systems? Physical Systems are tangible entities which may be dynamic or static. Computer Systems, Buildings,Vehicles etc. are illustrations of p
An AWT stands for Abstract Window Toolkit. AWT handles programmers to develop Java applications with GUI components, like windows, and buttons. The Java Virtual Machine (JVM) is re
RISC-Means Reduced Instruction Set Computer. A RISC system has decreased number of instructions and more significantly it is load store architecture were pipelining can be executed
what are the steps to implement bus topology?
The Process of Development The approach to development can be an iterative one. It involves repeated refinement of the object model. The process needs to be controlled by an a
A 4-bit synchronous counter uses flip-flops with propagation delay times of 15 ns each. The maximum possible time required for change of state will be ? Ans. 15 ns since in sy
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