This is a common error message that can occur on mainframe computers. S0C4 is an error that means you had a exception storage violation. Most often this error occurs because you are trying to read storage that is unavailable to your module. For example, you may be accessing a file that was never opened, or even writing to a file that is no longer opened. It could also be due to arrays where you are accessing storage that is unavailable or unallocated to your program.

This site provides a list of interesting subjects, tips, and tricks. Although it is mostly computer tips, there are also tips and tricks related to various other helpful topics besides just computers. If you have an important tip that you think should be listed, feel free to post it below. Although I still take tips via email, I often scan and review posts on the page below and prefer that method.