Half of the high schools in the Capital Region do not offer any computer science courses, according to a report that called for more “computational thinking” at all grade levels.

A free six-week computer training course will begin at Holyoke Community College beginning Tuesday, February 25.

For some seniors, computer classes mean learning how to get e-mail and access photos of grandchildren. But for Annie V. Babcock, it’s a chance to share her family history. Babcock, 81, traveled ...