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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.
The Boolean expression A‾.B + A.B‾ + A.B is equivalent to ? Ans. The Boolean expression A‾ .B + A. B‾+ A.B is equivalent to A + B (A‾ .B + A. B‾+ A.B = B( A‾ + A) + A. B‾ =
Why Java is called Machine Independent? While a java program is compiled this is not converted in an executable code. Rather, this is converted in a byte code. Byte code is hig
The following are the difference among Activity and Sequence Diagrams: A sequence diagram represents the way of processes implement in a sequence. For example, the order of op
Explain difference between Dynamic and static binding. Dynamic and static binding: Dynamic binding is a binding performed after the execution of a program has immediately beg
Q. Explain about Transmission Media? These, also known as physical channels, can be either bounded or unbounded. Bounded media, in which signals representing data are confined
Problem: A company requires a software application to calculate the weekly payment for its employees. The information about the employees (employees' data) is kept in a file.
Array Processing We have seen that for performing vector operations, the pipelining concept has been taken. There is another method for vector operations. If we have an array o
Explain about CSMA/CD It is an access method used mainly with LANs configured in a bus topology. With CSMA/CD, any station (node) can transmit a message to any other statio
The device is packaged in a 80 pin PLCC device as shown.The main groupings of the pins are as follows Port A PA0 - PA7 Parallel Port or Timer Port B PB0 - PB7 Parallel Port or High
Q. Write a Menu driven program to convert the given Decimal number into Binary, Octal and Hexadecimal number. (Fractional numbers are allowed)
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