Singularity (operating system)

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Published on April 12, 2019 11:20:01 PM ● Video Link: https://www.youtube.com/watch?v=IhCknjlYAw4

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Singularity (2010)

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Singularity (operating system)
Singularity was an experimental operating system built by Microsoft Research between 2003 and 20101 It was designed as a highly-dependable OS in which the kernel, device drivers, and applications were all written in managed code
Contents
1 Workings
2 Security design
3 Project status
4 Similar projects
5 See also
6 References
7 External links
Workings
The lowest-level x86 interrupt dispatch code is written in assembly language and C Once this code has done its job, it invokes the kernel, whose runtime and garbage collector are written in Sing# an extended version of Spec#, itself an extension of C# and runs in unprotected mode The hardware abstraction layer is written in C++ and runs in protected mode There is also some C code to handle debugging The computers BIOS is invoked during the 16-bit real mode bootstrap stage; once in 32-bit mode, Singularity never invokes the BIOS again, but invokes device drivers written in Sing# During installation, Common Intermediate Language CIL opcodes are compiled into x86 opcodes using the Bartok compiler
Security design
Singularity is a Singularity (operating system)

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