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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.
Q. What is External Procedures? These procedures are written as well as assembled in separate assembly modules and afterwards linked together with the main program to form a bi
What is meant by refreshing of the screen? Some method is required for maintaining the picture on the screen. Refreshing of screen is completed by keeping the phosphorus glowi
Specified the average case complexity of sequential search in an array of unsorted elements of size n if the following conditions hold: a) Probability of the key to be in the a
Give the difference between multiprogramming and multiprocessing. A multiprocessing system is a computer hardware configuration which contains more than one independent proc
FTP does not use ? FTP doesn't use User Datagram Protocol.
Types of Structure Charts Transaction structure - control module calls subordinate modules, each of which handles a certain transaction More afferent processes Le
A three stage network is realized by using switching matrices of size p x s in stage 1, r x r matrices in stage 2 and s x p matrices in stage 3. Using the Lee's probability graph s
How to declare array in c
Determine about the three-state gate A three-state gate is a digital circuit which shows three states. Two of them are equivalent to logic 1 and 0. The third one is a high im
Write a CGI program that displays a count of how many times a browser on each computer has contacted the server. echo Content -type: text /html echo N=$QUERY_STRING Ec
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