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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.
Explain the DAA DAA instruction follows the ADC or ADD instruction to adjust the result into a BCD result. DAA instruction functions only with the AL register, this addition sh
What is Double entry - Verification In this approach, data is entered twice (using two different people); data is only accepted if both versions match up. Generally used to ve
A digital signature is encrypting information
With a neat diagram explain operation of time multiplexed space switching. Time division switches, an inlet or an outlet corresponded to a particular subscriber line with one s
Which of the memories stores the most number of bits ? Ans. most number of bits stores in 32M x 8 As 2 5 x 2 20 = 2 25 Therefore 1M = 2 20 = 1K x 1K = 2 10 x 2 10
Draw and elucidate the block diagram of programmable interrupt controller 8259. The 8259A adds 8 vectored priority encoded interrupts to microprocessor. It can be expanded to 6
Illustrate the elements of Information Super Highway Infrastructure. The Information Superhighway is more than the Internet. This is a series of elements, including the collect
Q. How to Working in Dreamweaver? Let's now start our journey into the realm of Dreamweaver. We begin with typing in a few test lines in Design view. See that how our work area
Explain about IP Access. IP access on the network by: • Intranets onto Virtual IP Networks and • Extranets onto Virtual IP Networks.
Draw the logic diagram of 4-bit Twisted Ring counters and explain its operation with the help of timing diagram. Ans: Twisted ring counter (4 BIT): We ready know that shi
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