SharpOS

{{Short description|Operating system written in C#}}

{{Multiple issues|

{{Primary sources|date=April 2008}}

{{Notability|date=May 2024}}

}}

{{Infobox OS

| name = SharpOS

| logo = SharpOS Splash Screen.png

| screenshot = SharpOS Screenshot.png

| caption = SharpOS v0.0.0.75

| developer = SharpOS Project

| family = .NET Framework{{cite web |url=http://www.sharpos.org/redmine/wiki/3/About_SharpOS |title=Info About SharpOS |access-date=2008-04-13 |website=SharpOS Project}}

| working state = Discontinued

| source model = Open-source

| released = {{Start date and age|2008|01|01|df=yes}}

| discontinued = Yes

| latest release version = 0.0.1

| latest release date = {{Start date and age|2008|01|01|df=yes}}{{cite web |url=http://www.sharpos.org/redmine/wiki/3/M1_Announcement |title=M1 Announcement |access-date=2008-04-14 |website=SharpOS Project}}

| programmed in = C#

| language = English

| supported platforms = x86

| kernel type = Microkernel

| userland =

| ui = Command-line interface

| license = GNU General Public License version 3 with the GPL linking exception{{cite web |url=http://www.sharpos.org/redmine/wiki/3/License_Agreement |title=License Agreement |access-date=2008-04-13 |website=SharpOS Project |archive-url= https://web.archive.org/web/20080317191510/http://www.sharpos.org/redmine/wiki/3/License_Agreement |archive-date=2008-03-17}}

}}

SharpOS is a discontinued computer operating system based on the .NET Framework and related programming language C#. It was developed by a group of volunteers and presided over by a team of six project administrators: Mircea-Cristian Racasan, Bruce Markham, Johann MacDonagh, Sander van Rossen, Jae Hyun, and William Lahti.{{cite web |url=http://sourceforge.net/projects/SharpOS |title=SharpOS Project Details |access-date=2008-04-14 |website=SourceForge |url-status=dead |archive-url=https://web.archive.org/web/20080229055646/http://sourceforge.net/projects/sharpos |archive-date=February 29, 2008}} It is no longer in active development, and resources have been moved to the MOSA project. As of 2017, SharpOS is one of three C#-based operating systems released under a free and open-source software license.{{cite web |url=http://lab.obsethryl.eu/content/cosmos-one-opensource-csharp-c-based-kernels |access-date=2008-04-14 |website=obsethryl's lab |title=Cosmos, one of the Opensource CSharp (C#) Based Kernels |quote=The two projects working on this the opensource way are SharpOS (licensing: GPLv3 + runtime exception, hosting: Sourceforge) and Cosmos (licensing: BSD style, hosting: CodePlex).}}{{cite web |url=http://www.flingos.co.uk/Releases |title=FlingOS, one of the opensource CSharp (C#) based kernels |website=FlingOS.co.uk |access-date=2015-05-30 |quote=The kernel is written in C# and has reached a fairly advanced stage.}} SharpOS has only one public version available. and a basic command-line interface.