Array

 An array is a collection of variables that are stored in order in consecutive positions in the computer’s memory. Depending on the programming language, the array index starts at 0 (C language) or 1 (FORTRAN language); This item is stored in the position with the lowest address.

1. Discuss the pros and cons of the use of arrays and parallel arrays and provide an example of a real-life equivalent to an array and a parallel array.
2. Discuss what are the steps to verify that an item number exists in an array? Provide an example.
3. Discuss the improvement in efficiency that can be realized by exiting a search loop when a match is found. Provide an example.