Answer:
Charles Babbage
Explanation:
Analytical engines were presumed to be the first general-purpose computer which was designed sometime in the 19th century by Charles Babbage - a British mathematician and inventor. A series of punch cards was used by Charles Babbage in his design of the engine. These punch cards were used for various operations such as arithmetical operations, numerical constants and other operations such as load and store.
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Answer: (C) MAC
Explanation:
MAC is stand for the message authentication code and it is one of the key dependent hash function. Message authentication provide the data integrity and also the origin of data authentication.
- It basically allow the specific recipients known as the holder of the symmetric key.
- The message authentication code uses the CBC (Cipher block chaining) mode for constructing the MAC algorithm and it also uses the block cipher for the conjunction by using the CBC operations.
On the other hand, all the options are incorrect as they are not the key dependent hash function.
Therefore, Option (C) is correct.
Answer:
The given statement is "False".
Explanation:
Mainframes computer are also known big iron computer basically Mainframe computer is used by the big organization when the organization needs to work in the high-level project. The mainframe has big data processing. It is highly used in critical applications such as ERP(Enterprise resource planning).
A mainframe computer is not a flexible computer also they are not potable .microcomputers, are more flexible computers we can easily work on the microcomputers.
So the given statement is False.
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