What is the Samsung Smart TV CI module used for?

A CA module is a decoding module for use in digital TV receivers with Common Interface input , flat screen TV, DVB-T receivers for

Adaptér s názvom Modul Common Interface 5V má presné označenie 3709-001791 Samsung CI modul má počet pinov 64 CI slot slúži napr na zapojenie satelitu

tv slot games Common Interface with Multi Transponder Technology 2 CI Slots for 2 independent CAMs on one socket; Up to 2x 4 decrypted pay TV channels

tv ci slot What does No CI Module and Scrambled mean in LG televisions? Also what does the PCMCIA