<span>Large headphones are essentially just two loudspeakers mounted on a strap that clamps firmly over your head. Earbuds work
the same way but, as you would expect, everything inside them (the
magnet, the coil of wire, and the diaphragm cone that makes sound) is
shrunk down to a much smaller size.</span>
All of the following changes have created an urgent need for centralization except The number of qualified software programmers and PC repair technicians is dwindling
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Explanation:</u></h3>
When the processing tasks are carried out on a centralized server it refers to the Centralization. In this type of architecture all the computer systems will be connected to a single server in which all the computational work are performed. The client machines that are connected to the central server will get the resources for computing from the centralized server.
The main reasons for the purpose of centralization includes the following such as the development in the internet that required many computer networks, the basic functioning of the business in which the needed applications are fed on the intranets, the cost associated in the maintenance of personal computers on the single network.
Cryptographic system converts between plaintext and ciphertext. Cryptography is t<span>he process of making and using codes to secure transmission of information.
The c</span>ryptographic system involves encryption (the process of converting original message into a form unreadable by unauthorized individuals) and decryption (t<span>he process of converting the cipher text message back into plaintext so that it can be readily understood.)</span>