**Maximum number of open messages: 64
*'''System manager'''
**Maximum number of applications: 16 24
**Maximum application core size: 63 KB
*'''Desktop manager'''
**Maximum number of open files: 7
*'''Source code'''
**Source code size (OS Release 12): ~ 3044.000 lines (1,3MB)**Source code size (Applications): ~ 3448.000 lines (2,0MB)**Total size of the Z80 source code: ~ 6492.000 lines(3.3MB)
*'''Supported platforms'''
**Amstrad [[CPC]]-6128 (unexpanded) and compatibles ([[CPC TREX]], [[C-ONE]])
**[[dk'tronics]] memory expansion 64K-512K and compatibles ([[Dobbertin]], [[SYMBiFACE II]])
**[[SYMBiFACE II]] (realtime clock, PS/2 mouse, IDE interface)
**AMX and Kempston mouse (PCW)
**Sunrise IDE interface (MSX)
**MP3MSX (MSX)