Questions

Among the Indian cities Chandigarh is known as City of Roses.

There is no difference except for the fact that the first one gives a hint that the function fun() is probably in another source file.

Media and networks are connected in such a way that the consumer receives the effective information. Media goes into different networks.

The memory which can be retained even the power is off is called as Permanent memory or Persistent memory. Computer's hard drive is an example of permanent memory and computer's cache or RAM are examples of temporary memory.