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Explain in detail about Operating Systems (OS)
Operating system (OS) is a program which after being initially loaded into computer by a boot program, manages all the other applications/programs. On a PC, first program which runs is stored on a ROM chip. This program checks system hardware to make sure everything is functioning routinely. This checks CPU, memory and basic I/O systems (bios) for errors. If all is satisfactory, BIOS will activate disk drives. When hard drive is activated, OS is found in boot and is then loaded.
Program: A good illustration of code conversion: Write a program to convert a; 4-digit BCD number into its binary equivalent. BCD number is stored as a; word in memory location kno
What is branch instruction? As a result of branch instruction is a type of instruction which loads a latest values into the program counter.
What is multiplicity? Multiplicity is applied to attributes for data base application. Multiplicity for an attribute specifies the number of possible value for every instantiat
Binary Search: Search a sorted array by repeatedly in-between the search interval in half. Start with an interval covering the entire array. If the value of the search key is less
Q. Explain salient points about indirect addressing? A number of salient points about this scheme are: In this addressing scheme effective address EA and contents of th
Q. Explain Program Source Code? Program Source Code Every assembly language statement appears as: {identifier} Keyword {{parameter},} {;comment}. Element of a
How to use messages in lists? ABAP/4 permits you to react to incorrect or doubtful user input by displaying messages that influence the program flow depending on how serious
What are null values? If the value of a field in a table is indeterminate or unknown, it is known as a null value.
COMPUTER FUNDAMENTALS 1. Elaborate the various steps in performing a Mail Merge. Perform one mail merge operation for sending invitation for a conference which is being conduc
What are the advantages of code optimization? Code optimization tends at enhancing the execution efficiency of a program. It is achieved in two manners. Redundancies in a progr
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