Photo of Mark Larson

Presenter

Institution: Keyguard Assistive Technology
Position: Owner
Location: Spring Lake Park, MN, United States
Education Credentials:

Special Needs Developer

Financial Disclosure:

Owner of Keyguard Assistive Technology.

Experience

Mark Larson began his assistive technology career as a software developer in October, 1983. With his partner Bill, he formed Marblesoft (Mark and Bill) and published its first program, "Early Learning I" in January, 1984. For the next 32 years, Mr. Larson developed assistive software under the labels Marblesoft and Click to Read, as well as publishing titles for Simtech and SoftTouch. In 2016, Marblesoft bought Lasered Pics and switched to making keyguards as Keyguard Assistive Technology, where Mr. Larson is still the owner and CEO. At 68, he's still there every day trying to make keyguards better, stronger, and more widely available.

Presentations

Keyguards are Boring, Complicated, and Fragile – NOT!

October 22, 2025 – 11:30 AM - 12:30 PM
Category:
Subject Level: intermediate