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Explain about the viruses in detail
Note 1: Viruses don't just infect computers, they may also affect mobile phones, MP3 players etc. - any device that can download files from a source such as internet is potentially at risk.
Note 2: Backing up may allow files which have become corrupted/lost (because of hacking or viruses) to be reinstated; though, this wouldn't recover the system nor would it prevent viruses/hacking affecting a system in the first place.
Note 3: Other problems like spam, pop ups, cookies, etc. are more of a nuisance (albeit they can considerably slow down operation of a computer system) and can be made inactive or blocked (as they can become active without user's knowledge) using appropriate software.
Explain the Logic symbols - Flip Flops? These flip-flops are as well called Master-Slave flip-flops simply because their internal construction is divided into two sections. Th
Laptop computers Laptop computers have the obvious advantage over desk-top computers (PCs) in that they are fully portable. This is of specific value if a user wishes to do wor
Q. What are the elements of an instruction? As the function of instruction is to communicate to CPU what to do it needs a minimum set of communication such as: What op
list and explain the contents of pcb
What happens when HLT instruction is implemented in processor? Ans) The Micro Processor go into the Halt-State and the buses are tri-stated.
Address phase timing: On the rising edge of clock 0, the initiator notes IRDY # and FRAME# both high, and GNT# low, so it drives the command, address and asserts FRAME# in tim
A) Change the following formulas from reverse Polish to infix: a) AB +C + D x b) ABCDE + x x / B) Change the following formulas from infix to
Q. Explain about Magnetic Disk? A disk is circular platter constructed of nonmagnetic material known as substrate, coated with a magnetisable material. This is used for storing
'LRU' page replacement policy is ? Ans. Least Recently Used.
What are the different ways synchronize between two clock domains? The following section describes clock domain interfacing one of the biggest challenges of system-on-chip (SOC
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