When you install Adaptive Server, it contains these system 
databases:

The master database controls the user databases and the 
operation of Adaptive Server as a whole. It stores 
information about all user databases and their associated 
database devices.

The model database is used by Adaptive Server as a template 
for creating new user databases.
	A new database cannot be smaller than the model 
database.

? The sybsystemprocs database contains the system stored 
procedures.

The sybsystemdb database contains information about 
distributed transactions.

? The temporary database, tempdb, stores temporary objects, 
including temporary tables created with the name 
prefix ?tempdb..?.

? The sybsecurity database, contains the audit system for 
Adaptive Server. It consists of:

The system tables, sysaudits_01, sysaudits_02, ... 
sysaudits_08, which contain the audit trail
The sysauditoptions table, which contains rows describing 
the global audit options.
All other default system tables that are derived from model