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Minerva (QDOS reimplementation)
open-in-new
<p>Minerva is a reimplementation of <a href="/facts/Sinclair_QDOS/2100FJPw">Sinclair QDOS</a>, the built-in <a href="/facts/Operating_system/8XTuvMh2">operating system</a> of the <a href="/facts/Sinclair_QL/Dn5dIVkR">Sinclair QL</a> line of <a href="/facts/Personal_computer/koaYfNce">personal computers</a>. Written by Laurence Reeves in <a href="/facts/England/U9mE5bGL">England</a>, Minerva incorporates many bug fixes and enhancements to both QDOS and the <a href="/facts/SuperBASIC/XeFGH4pr">SuperBASIC</a> <a href="/facts/Programming_language/cWTYbgWa">programming language</a>. Later versions also provide the ability to <a href="/facts/Computer_multitasking/Q4acPNMv">multi-task</a> several instances of the SuperBASIC interpreter, something not supported by QDOS. </p><p>Minerva was distributed as a <a href="/facts/Read-only_memory/P9QMuDLH">ROM</a> chip on a <a href="/facts/Daughterboard/QkWAPnxJ">daughterboard</a> which replaces the QL's original ROM chips. A Minerva Mk. II daughterboard also incorporates an <a href="/facts/I%25C2%25B2C/dKBBhs4U">I²C</a> interface and non-volatile real-time clock. As of version 1.89, the Minerva <a href="/facts/Source_code/o9J6Jv23">source code</a> is licensed under the <a href="/facts/GNU_General_Public_License/S75KhLSX">GNU General Public License</a>. </p><p>Other reimplementations of QDOS include SMS2 and <a href="/facts/SMSQ%2fE/77KLqTPt">SMSQ/E</a>. </p> <ul> <li>Free and open-source software portal</li></ul>