Why are computer networks important to businesses?

It lets you store important business data in a centralized location. This allows the various computers in the network to retrieve important data from the main location. computer networking lets you access the data from the other computers on the same network, and modify it according to your need

a variable of array type holds a reference of object

array are commonly used in computer program to organize data so that a related set of values

array are using zero base indexing it start with 0.

all component of array have same type, two different types doesn't use in single array

if array are store 10 quantities its index value varies from 0 to 9.

it stores 1st quantity value in index value 0 and this process will same till index value 9.