Pergunta de entrevista da empresa Wabtec

How does a Washing Machine Work, what are the different components and how are they controlled by a Small CPU (a broad overview answer was expected). Write a C/C++ program to convert a string number to actual Integer. Write a C/C++ program to convert Octal, Hexa to integer. Write a C/C++ program to convert string int to Hexa. How does a program converted to Machine code (A broad Overview answer was expected) Responsibilities of an OS Types of OS Difference between real-time OS and multi-tasking OS