SZ_OS::32 Bit Real Mode Operating System for 386+ Processors
It supports:
  • Preemtive Multitasking
  • FAT16
  • VFAT [FAT16 with Long File Names from Win95]
  • FAT12
  • virtual screens [multiple, scrollback buffer, different resolutions]
  • different font on every screen and resolution
  • Message System
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Version 1 · · 27kb · VirusTotal Report
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You can make a Bootdisk or start the kernel under MS-DOS. Not everything works. I’ve no idea what.
Bootdisk MS-DOS
  • Download ZIP file
  • Unpack
  • Insert formated empty FAT disk in drive A
  • copy kernel file "SZ_OS" to drive A
  • run "MAKEB.EXE BOOTCODE" [This will write the BOOTCODE file to the bootsector from drive A]
  • copy the other files also to drive A
  • Boot from drive A
  • Download ZIP file
  • Unpack
  • rename kernel file "SZ_OS" to "SZ_OS.COM"
  • Insert formated empty FAT disk in A
  • copy the other files to A
  • run "SZ_OS.COM"
Keys Function
Alt-F12 Create new text console with shell
Alt-F1 to Alt-F9 Switch between consoles
Alt-F11 Switch to next console
Ctrl-Alt-Gray Plus, Ctrl-Alt-Gray Minus Change resulotion
Ctrl-Alt & Cursor Up, Cursor Down, Pos1, End, Page Up, Page Down, Return move screen view
Cmd Line Result
File_Name Shell waits until program exit
File_Name & Shell returns immediately [Multitasking]
File_Name |Screen_Number Output goes to screen Screen_Number
File_Name |+PID Output goes via messagesystem to Process PID
File_Name |Screen_Number & Think Baby...
File_Name |+PID & see above

  • If filename or directoryname includes spaces, use " at begin and end.
  • HI-CON is an High Resolution Text Console Driver [132x25/132x43]. This program adds a new console. Start a shell with " |Screen_Number &" on this new screen.
  • The set_font program accept Raw Font files for 8x8 8x14 8x16 fonts.
  • Try option -? to get help.
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