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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
What are the main data structures used in the following areas: RDBMS, Network data model and Hierarchical data model? RDBMS = Array (i.e. Array of structures) Network data m
Define the Programmable logic devices (PLD)? In the world of digital electronic systems there are three essential kinds of devices 1.memory, 2.microprocessors, and 3.logic. The
Write-through vs. write-back caches
What is Read only memory (ROM) and Define the Use of it? A simple kind of ROM can be constructed from a decoder, Or gates, and a number of wires. Input
Q. Explain types of assembly programs? Assembly language programs can be written in two manners: COM Program: Having all segments as part of one segment EXE Program: that hav
What is chattering as applied to mechanical switches used in digital systems and why do they occur? What is its effect on the functioning of a sequential circuit? Ans Chat
Illustrate functional diagram of digital multiplexer . Write the scheme of a 4- input multiplexer using basic gates (AND/OR/NOT) and explain its operation. Ans: Multiple
What are the different layers in R/3 system? There are three layer:- Presentation Layer. Application Layer. Database Layer.
Explain the Paging Unit Paging mechanism functions with 4K - byte memory pages or with a new extension available to Pentium with 4M byte-memory pages. In Pentium, with new 4M-b
Digital versatile disk (DVD) This is an optical system for storing data. It's similar to CD though typically can hold 4.7 Gbyte of data compared to only 700 MB of data on a CD.
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