... operation system of Linux(CentOS, RHES, SUSE, Ubuntu), Unix(AIX, PH-UX, Mac OS X, Solaris), Windows, no need of database ... .14. TV signal: support TV programme input in analog or digital signal.15. Video Signal: support real time display of surveillance ... . Network: support cabled/wireless LAN.19. Support multi languages. WOS digital signage contents management software