Midori (which means green in Japanese) was the code name for a

managed code Managed code is computer program code that requires and will execute only under the management of a Common Language Infrastructure (CLI); Virtual Execution System (VES); virtual machine, e.g. .NET, CoreFX, or .NET Framework; Common Language Runt ...

operating system An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs. Time-sharing operating systems schedule tasks for efficient use of the system and may also i ...

(OS) being developed by

Microsoft Microsoft Corporation is an American multinational technology corporation producing computer software, consumer electronics, personal computers, and related services headquartered at the Microsoft Redmond campus located in Redmond, Washin ...

with joint effort of Microsoft Research. It had been reported to be a possible commercial implementation of the OS Singularity, a research project begun in 2003 to build a highly dependable OS in which the

kernel Kernel may refer to: Computing * Kernel (operating system), the central component of most operating systems * Kernel (image processing), a matrix used for image convolution * Compute kernel, in GPGPU programming * Kernel method, in machine learn ...

, device drivers, and

application software Application may refer to: Mathematics and computing * Application software, computer software designed to help the user to perform specific tasks ** Application layer, an abstraction layer that specifies protocols and interface methods used in a ...

are all written in

. It was designed for concurrency, and could run a program spread across multiple nodes at once. It also featured a security model that sandboxes applications for increased security. Microsoft had mapped out several possible migration paths from Windows to Midori. Midori was discontinued some time in 2015, though many of its concepts were used in other Microsoft projects.

History

The code name ''Midori'' was first discovered through the

PowerPoint Microsoft PowerPoint is a presentation program, created by Robert Gaskins and Dennis Austin at a software company named Forethought, Inc. It was released on April 20, 1987, initially for Macintosh computers only. Microsoft acquired PowerPo ...

presentation ''CHESS: A systematic testing tool for concurrent software''. Another reference to Midori was found in a presentation shown during the ''Object-Oriented Programming, Systems, Languages & Applications'' (

OOPSLA OOPSLA (Object-Oriented Programming, Systems, Languages & Applications) is an annual ACM research conference. OOPSLA mainly takes place in the United States, while the sister conference of OOPSLA, ECOOP, is typically held in Europe. It is opera ...

) October 2012 conference, and a paper from the conference's proceedings.

References

External links

SD Times' David Worthington on the migration away from Windows

SD Times' David Worthington on Midori security

Technologizer report by David Worthington on Windows Mobile's life cycle

Microsoft sees end of Windows era, BBC News

Joe Duffy - Blogging about Midori, 2015
{{DEFAULTSORT:Midori (Operating System) Microsoft operating systems Microsoft Research Microkernel-based operating systems Capability systems Microkernels