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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.
Another way of classifying a computer system is based upon its size and capabilities: Microcomputers: Microcomputers are systems based on the use of microprocessors. A Micr
FMS CONTROL-DISPLAY UNIT: The CDU provides a means for the crew to communicate with the FMC. It contains pushbutton key controllers and a display screen. The keys are of two
Problem 1. Explain with diagram the internal components of ALU. Diagram Explaining Internal components 2. What is addressing mode? Explain any five addressing mo
COMPONENTS OF A COMPUTER: We use a computing system basically to feed in some data that is processed by the computer and some information is generated as a result.. For this w
SPECIAL-PURPOSE AND GENERAL-PURPOSE COMPUTERS In general, there are two types of digital computers. The first is the special-purpose digital computer, which performs a f
What is meant by the terms 'row-major order' and 'column-major order'? Ans: (i) Storing the array column by column is called as column-major order and storing the array row by
HTML is a Formatting language which is most commonly used for web documents.
Problem 1. Briefly explain on the characteristics of computers Explanation of characteristics of computers 2. Write a note on Cache Memory Note on Cache Memor
how to find assignment?
Magnetic Memory: In the above section we have seen various types of semiconductor RAMs. These high speed semiconductor storage devices (i.e. RAMs) are expensive. So we need s
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