Federal Building, Former military computer building in Colorado Springs, Colorado, United States

The Federal Building, originally the Burroughs Building, is a two-story structure of 44,000 to 50,000 square feet built in 1962 on 1.7 acres at Ent Air Force Base. Designed by C. Dewey King, it held offices and laboratories for NORAD's electronics and communications systems. It later became an off-base facility of Peterson Air Force Base and was sold in 2009.

The Burroughs Corporation built this two-story structure in 1962 on 1.7 acres of Ent Air Force Base, designed by C. Dewey King, to house offices and laboratories for NORAD's electronics and communications systems. It served as an Ent Air Force Base building until the base was inactivated in 1975, then became an off-base installation of Peterson Air Force Base. The General Services Administration owned it by 1998 and leased it to Air Force Space Command; it stood vacant from 2007 and was sold at online auction in 2009 for $890,000.

In 1970 the Burroughs Building housed a Museum of Heritage collection for the Fourteenth Aerospace Force, with items from personnel who served with the Flying Tigers or its forerunner, the American Volunteer Group in China: Chinese coins, patches, flying jackets and flags, to be completed in September 1970. In June 2007 the building hosted a Coalition Warrior Interoperability Demonstration, including a simulated hostage demonstration.

The building has stood vacant since 2007 and was sold at online auction in 2009 for $890,000, so it is not open to visitors and offers no services. It stands on 1.7 acres as an off-base installation of Peterson Air Force Base, reached from the Colorado Springs side. Treat it as a structure to view from outside, not to enter.

In 1970 the building housed a Museum of Heritage collection for the Fourteenth Aerospace Force, with Chinese coins, patches, flying jackets and flags from personnel of the Flying Tigers and its forerunner, the American Volunteer Group in China. The GSA sold the vacant building at online auction in 2009 for $890,000.