Stands for Random Access Memory, a computer-chip form of memory. Information such as computer programs and data is temporarily stored in RAM while the computer is turned on. As a general rule, RAM is volatile memory, and its contents are lost when power is removed. Flash memory is an exception to this rule.
RSS
Stands for Really Simple Syndication, a protocol designed to make it easy for the average person to get podcasts out for the world to hear.
RSS feed
The actual link to the podcast or other file to be syndicated.