service packs
A Service Pack is also called as a Feature Pack that is made up of a collection of enhancements, fixes and updates to a software. Some of the commonly used SP include SP2, SP3 and SP4
You can get a free program called enhancemyseven. Which is a program dedicated to making windows 7 enhancements.
It sounds like you're referring to "enhancements".
patches
updates
It is called "operating".
It is called "operating".
Income which is generated by normal business basic operating activities is called net operating income while other income then operating income is called non operating income like interest income or dividend income etc.
Operating System
Red Hat, Inc. is a company that rebrands, supports and distributes the GNU Linux operating system, along with their own enhancements. One of their product lines is called Red Hat Enterprise Linux.
Patches
It is called "operating".