回視聴
1:44
Facebook Messenger ChatBot - Automated Messaging Software - Giant Chat
0:38
Kayako Messenger - Live Chat Software
1:40
LAN chat software. Messenger for Windows 10, 7, 8, XP
1:36
LAN chat & instant messenger software. Pop Messenger.
14:50
System Design Mock Interview: Design Facebook Messenger
9:44
How Signal Instant Messaging Protocol Works (& WhatsApp etc) - Computerphile
25:15
WHATSAPP System Design: Chat Messaging Systems for Interviews
0:26
Blue chat software
