Betriebssysteme:
Windows 2000 Client
Windows XP
Windows Vista
Windows 7
Windows 8
Windows 8.1
Windows 10
Windows Server 2003
Windows Server 2008 (R2)
Windows Server 2012 (R2)
Windows Server 2016
Microsoft SQL Server (2005 / 2008 / 2012)
Microsoft Exchange Server (2007 / 2010 / 2016)
Linux (Grundkenntnisse)

Programmiersprachen:
HTML
C
C++
Java
CSS
Webdesign
Batch

Kommunikation / Netze:
Router, Hubs, Switches
FTP
HTTP
Internet
Intranet
ISDN
LAN
DSL
POP3
TCP/IP
Firewall
SMTP
SSL
VPN
DHCP
WLAN

Tools:
Active Directory
Diverse Remote-Control Software
Software:
MS Office XP / 2003 / 2007 / 2010 / 2013 / 2016 / 2019
Word, Excel, Outlook, PowerPoint, Visio, Project, Access

Hardware:
Server:
HP, Dell, Fujitsu
PC-Technik:
HP, Compaq, IBM, Fujitsu, Dell, Lenovo
NotebookTechnik:
HP, Compaq, IBM, Toshiba, Fujitsu, Dell, Lenovo
Mobile Kommunikation /PDA´s:
iOS, Android