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Security features used in Client-Server types of network are as follows : i) Digital Signatures ii) Encryption / Decryption iii) Secure Socket Layer (SSL) iv) Firewa
What are the four necessary conditions of deadlock prevention? Four essential conditions for deadlock prevention are: 1. Removing the mutual exclusion condition implie
Define the node of object oriented modeling A node is a physical element which exists at runtime and represents a computational resource usually having a large memory and often
What is port? What are the types of port available? An I/O interface having of circuitry needed to connect an I/O device to computer bus. One side consists of a data path with
Q. Programmed input - output technique for computers? Programmed input/output is a useful I/O technique for computers where hardware costs need to be minimised. Input or output
What is a screen group? How it is useful? Screen group is a field in the Screen Attributes of a screen. Here we can explain a string of up to four characters which is availa
Define The Boolean algebra? A set of rules invented by the English mathematician George Boole describe certain propositions whose outcome would be either true or false with regar
What do you understand by Hit ratio? When a processor refers a data item from a cache, if the referenced item is in the cache, then such a reference is called hit. If the refer
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What are the major functions of IO system? i. Interface to the CPU and memory by the system bus. ii. Interface to one or more IO devices by tailored data link.
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