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Observing the existing system first hand
This involves watching personnel using the existing system to find out precisely how it works. There are a number of disadvantages as well as advantages of using this method to gather information about existing system
Problem 1 (a) List and describe the characteristics of mainframes, minicomputers and microcomputers. (b) Briefly describe what is meant by electronic commerce and what b
What is blocking probability? Blocking Probability: The blocking probability P is described as the probability like all the servers in system are busy. If all the servers ar
Explain the stack in digital computers The stack in digital computers is fundamentally a memory unit with an address register which can count only (after first value is loaded
Define Bandwidth? When transferring blocks of data, it is of interest to know how much time is required to transfer an entire block, as blocks can be variable in size it is use
Define Program Counter(PC) The Program Counter holds the address of the next instruction to be read from memory after the current instruction is implemented.
A field containing quantity amounts (data type QUAN) must be assigned to a reference table and a reference field. Explain? As a reference table, a system table having all the v
What is the type of Process Identifiers? Identification of the real user Identification of the effective user Identification of the real group Identification
Disadvantage and Advantage of mutual-exclusion implementation with semaphores. Disadvantage: Mutual-exclusion solutions specified by semaphores require busy waiting. Tha
Q. What is Dynamic Random Access Memory? RAM technology is divided into 2 technologies: Static and dynamic. A dynamic RAM (DRAM) is made with cells which store data as charge o
How different control function categories help in signalling and control. Events happening outside the exchange on the line units, trunk junctions and inter exchange signalin
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