C A Callahan

CA Callahan, MCSE, MCSA, MCT, is the founder and principal trainer for CallahanTech, providing customized training and courseware for businesses and IT professionals. A Microsoft Certified Trainer since the Windows NT Server days, Callahan teaches fellow IT professionals about the latest Microsoft technologies. She's a frequent presenter at conferences and expos, including Windows/Office Connections and LinuxWorld/NetworkWorld Expo; with a brief stint instructing hands-on labs at Microsoft...See more