I studied information science and did computers from the old Commodore VC-20 onwards.
I started during study as pc-admin for DOS, Windows, WfW and all related software and hardware stuff.
Later I switched over to servers, starting with linux-samba and NT 3.5/4.0.
My first job made me a Solaris admin in a huge company with over 500 solaris servers. There I got every day a new interesting problem that I have never encountered before.
My next job brought me into project management and later back to system administration - mainly Linux. It was frustrating to manage a project when you knew that doing the admin`s job yourselv would have the current step finished in less than 30 minutes...
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Server Fault
Q&A for professional system and network administrators
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
Martial Arts
Q&A for students and teachers of all martial arts
Android Enthusiasts
Q&A for enthusiasts and power users of the Android operating system
Stack Overflow
Q&A for professional and enthusiast programmers
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Geographic Information Systems
Q&A for cartographers, geographers and GIS professionals