Acronyms: CAS/Xcas/GINAC/GIAC/...

[compsystems]

Hello please help me check, correct and complement the following acronym

CAS: Computer Algebra System https://en.wikipedia.org/wiki/Xcas

Xcas: X (Multi platform) Computer Algebra System
http://www.reloco.com.ar/linux/X.html

GNU GNU is Not Unix (recursive acronym) https://en.wikipedia.org/wiki/GNU G was incorporated to pronounce it as Wildebeest/GNUS

GiNaC: GNU (GNU) and is Not a Computer Algebra System http://www.ginac.de/ 2: https://en.wikipedia.org/wiki/GiNaC

GIAC: G (GNU) but is a Computer Algebra System https://www-fourier.ujf-grenoble.fr/~parisse/giac.html

KhiCAS: Khi ? CAS (Giac/Xcas) for the TI Nspire calculator https://tiplanet.org/forum/archives_voir.php?id=79135

Qcas: The QT frontend to CAS (Giac/Xcas) http://webusers.imj-prg.fr/~frederic.han/qcas/

Xcas PAD: CAS (Giac/Xcas) for android OS

Pocket CAS: for iPhone/iPad
CAS Calc P11: for iPad

Know any other related to xCAS?
What is the relationship between GiNaC & GIAC

Thanks