How did people figure qwerty keyboard set up, instead of the abcdef setup?

They are arranged randomly because manual typewriters tended to jam if the user typed too fast - therefore the arrangement was intended to slow early typists down.

Explanation:

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.

looking away, slouching, not focusing

explanation: