Explanation:
The special case that exists in linked list when we are managing them is when we are dealing with the first element of the list.
When we create a linked list we create a first node separately.
If we delete or add element in front of the first element we have to carefully handle that case.
Hence the special case is when we are dealing with the first element of the list.
Answer:
This is known as the Metcalfe's Law
Explanation:
In 1980, Metcalfe's law was first presented, not considering users but the communication among compatible devices (e.g. telephone, fax machines and so on). It was after the globalization of the internet that the law got introduced to users and networks.
A demonstration of the law can be seen in fax machines, one fax machine is purposeless, however, the interconnection of multiple fax machines on the network increases the value of every fax machine because the number of the users of the fax machines increases. Similarly, the more the users of a particular service, the more relevant the service becomes.
This term is called a "Cookie".
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Answer:
Both are touchscreen.
Tablets are seen more as an entertainment device (tv, games, etc.).
Phones are smaller, and used more for everything; you can take phones anywhere you go, whereas tablets are more difficult to transport.