Tech by requirements

 
 
 
 own serverweb accessstandard clientspecial clientmin. client class
Asynchronious
e-mail no possible, webmail yes, e-mail client no, possible 286, PDA
web forum no, helps yes yes, web browser no 386
web news no, helps yes yes, web browser no 486
web whiteboard no, helps yes yes, web browser possible 586 (for Java)
UseNet yes possible, gateway yes, nntp client no 286
Synchronious
chat no yes, Java needed no yes, in Java 586+
IRC yes possible, with Java client yes, under Unix yes 386
talk yes no yes, under Unix no 386
gaming yes, 686 no no yes, game itself 686+
VR 3D yes, 686 no no yes 686+
P2P file sharing no no no yes 586+
phone yes just for address book no yes 586+