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

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 TechEd. Previously, she traveled across the US on behalf of Microsoft to do TechNet Security Briefings, and has become passionate about network access security, disaster recovery, and virtualization. An avid beta tester, she has participated in such notable betas as Server 2003 (as well as SP1 and R2), Server 2008, Vista, Virtual Server, and Data Protection Manager. Callahan is a contributing author of "Windows Vista: The Missing Manual" with David Pogue as well as "Mastering Windows Server 2003" and its "Upgrade Edition for SP1 and R2" with Mark Minasi. See less