J

JavaScript

A programming language that allows access to system resources of the system running the script. These scripts can interface with all aspects of an operating system just like programming languages, such as the C language.

journaling

The ability of a filesystem to use a log file of all changes and transactions that have occurred within a set period of time (for example, the last few hours). If a crash occurs, the operating system can look at the log files to see what transactions have been committed and which ones have not.