C++ programming on UNIX platforms

1. What is a Make file?(Fujitsu) Make file is a utility in Unix to help compile large programs. It helps by only compiling the portion of the program that has been changed.
2. What is deadlock? (Novell) Deadlock is a situation when two or more processes prevent each other from running.Example: if T1 is holding x and waiting for y to be free and T2 holding y and waiting for x to be free deadlock happens.
3. What is semaphore? (Novell) Semaphore is a special variable, it has two methods: up and down. Semaphore performs atomic operations, which means ones a semaphore is called it can not be inturrupted.
4. Is C an object-oriented language? (Microsoft) C is not an object-oriented language, but limited object-oriented programming can be done in C.
5. Name some major differences between C++ and Java. C++ has pointers; Java does not. Java is platform-independent; C++ is not. Java has garbage collection; C++ does not.