21.   Once you have written your program and removed all the syntax errors, you might think that your program is error free.

22.   You may wish to write a program which makes use of special facilities and which will be run on different types of computer.

23.   However, if you are writing a program for a novice, the use of LET makes it more understandable.

24.   Try the examples and write some programs for yourself and then go back and read the notes again.

25.   These were used by the computer operator to write programs for his or her particular purpose.

26.   An old virus program is fairly worthless, since it is blind to viruses created after the anti-virus program was written.

27.   Analysts think Apple needs that much clout to convince software developers to continue writing programs for the Mac.

28.   And as they could with the browser, people can write programs to run on the RealPlayer platform.

29.   And it is that code that software developers rely on when they write programs to run on the operating system.

30.   And it will provide a larger group of building blocks, called application foundation classes, used to write programs.