... microprocessorOperating SystemEmbedded LINUXSystem ResourcesPentaplex function:live,recording,playback,backup & remote accessUser InterfaceGUI,on-screen menu ... slow play,next file,previous file,repeat,shuffle,backup selectionSearch ModeTime/Date,Alarm,Motion Detection & ... hibernation technology,HDD faulty alarm & Raid(Redundancy)Backup ModeNetwork download/Flash stickInterfaceVideo Input4 channel,BNC, ...