Question : what does a sys admin do?

is the term System Admin general or specific to what the job duties could be? Does it have to be a technical person? or does he only manage the technical crew etc.

or is the SA more to do with security related issues to the systems under him?

thanks

Answer : what does a sys admin do?

Here is a good description of the functions of a Systems Administrator:
http://jobsearchtech.about.com/od/careersintechnology/p/SysAdmin.htm