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Trap doors: This is a way of bypassing normal authentication procedure (windows/ operating system user name and password) to access a system. Once a system is compromised (impacted by) by malware, one or more backdoors may be installed for easier future access to the system.
Logic Bombs/ Time Bombs:
Logic Bombs are not programs in their own right but rather camouflaged segments of other programs. They are not considered viruses because they do not replicate. But their objective is to destroy data on the computer once certain conditions have been met. Logic bombs go undetected until launched, and the results can be destructive. For example, some malicious programs are sot off during days such as April Fools Day or Friday the 13th.
Question 1 Draw a neat diagram of the organization of computer and explain about each unit Question 2 Explain batch processing system and multi-processing in brief Questi
Algorithm : 1. Read the values of principal amount, time and rate of simple interest into the locations labelled as P, T, R. 2. Set the count T to 1 implying the end of a year. 3.
While pipelining can cruelly cut the time taken to execute a program, there are troubles that cause it to not work as well as it possibly shall. The three stages of the instruction
The architecture of the x86 processors forces with the use of memory segments to direct the information, the size of these segments is of 64kb. The cause of being of these segments
Processor: Processor plays major role in a computer. One should carefully decide about the type of processor and its speed before making a choice. Currently Core 2 Duo process
Problem 1. Explain with diagram the internal components of ALU. Diagram Explaining Internal components 2. What is addressing mode? Explain any five addressing mo
Name and explain the classifications of computers
TELECOMMUNICATION PROTOCOLS: The two major components relating to a WAN are the Protocol and the Media. The media are the actual path ways that the protocol travels on. The ne
Input Devices Keyboard Keyboard is the device through which the commands, instructions required for execution of a program is entered. It consists of a number of
If L is a regular language show that L U {a} is regular
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