He developed several computer operating systems, namely Microsoft Windows NT, and Digital Equipment Corporation's RSX-11M, VAXELN, and VMS.

Cutler left DuPont to pursue his interest in computer systems, beginning with Digital Equipment Corporation in 1971.

The design featured simplifications to the memory management and process scheduling schemes of the earlier proposals and the architecture was accepted.

Cutler, who was working in DEC's DECwest facility in Bellevue, Washington, was selected to head PRISM, a project to develop the company's RISC machine.

Its operating system, code named MICA, was to embody the next generation of design principles and have a compatibility layer for Unix and VMS.

Funding the research and development of multiple ECL projects yielding products that would ultimately compete against each other was a strain.

[9] In January 2012, a spokesperson for Microsoft confirmed that Cutler was no longer working on Windows Azure, and had joined the Xbox team.

[10] In May 2013, Microsoft announced the Xbox One console, and Cutler was mentioned as having worked in developing the host OS of the new gaming device.

Apparently his work was focused on creating an optimized version of Microsoft's Hyper-V Host OS specifically designed for Xbox One.