Burroughs MCP

The MCP (Master Control Program) is the <a href="/facts/Operating_system/8XTuvMh2">operating system</a> of the <a href="/facts/Burroughs_Corporation/NAEwIvpU">Burroughs</a> <a href="/facts/Burroughs_large_systems/FwY7EqrB">B5000/B5500/B5700</a> and the <a href="/facts/Burroughs_large_systems/FwY7EqrB">B6500 and successors</a>, including the <a href="/facts/Unisys/y49ddC6b">Unisys</a> Clearpath/MCP systems.
MCP was originally written in 1961 in <a href="/facts/Executive_Systems_Problem_Oriented_Language/7NC3b7aL">ESPOL</a> (Executive Systems Problem Oriented Language). In the 1970s, MCP was converted to <a href="/facts/NEWP/VNnIszLD">NEWP</a> which was a better structured, more robust, and more secure form of ESPOL.
The MCP was a leader in many areas, including: the first operating system to manage multiple processors, the first commercial implementation of virtual memory, and the first OS written exclusively in a <a href="/facts/High-level_language/smjECUhx">high-level language</a>.

Burroughs MCP open-in-new

Burroughs MCP