SymbOS

SYmbiosis Multitasking Based Operating System (SymbOS) is a multitasking operating system for Zilog Z80-based 8-bit computer systems.

This article is about the computer system. For the obsolete caprine genus Symbos, see Bootherium.
SymbOS
Screenshot of the SymbOS desktop on the Amstrad CPC
DeveloperSymbiosiS
Written inAssembly language (Zilog Z80)
Working stateCurrent
Source modelFreeware
Initial release1 May 2006 (2006-05-01)
Latest release3.1 / 30 December 2021 (2021-12-30)
Available inEnglish
PlatformsAmstrad CPC, MSX, Amstrad PCW, Enterprise 64/128
Kernel typeMicrokernel
Default
user interface		Graphical user interface
Official websitewww.symbos.de

Unlike early 8-bit operating systems, SymbOS is based on a microkernel, which provides preemptive and priority-oriented multitasking and manages random-access memory (RAM) with a size of up to 1024 KB. It has a Windows-like graphical user interface (GUI), supports hard disks with a capacity of up to 128 GB and can already be booted on an unexpanded Amstrad CPC-6128, a 128K-MSX2 and an Amstrad PCW.

As of August 30, 2017 it is available for the Amstrad CPC series of computers, all MSX models starting from the MSX2 standard, MSX with V9990 graphics chip, all Amstrad PCW models, CPC-TREX, C-ONE and the Enterprise 64/128 computers.

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