Digital set-top box
Digital set-top box refers to the box on the top of the TV, is a household appliance that expands the functionality of the television. Set-top boxes according to the type of signal received is divided into analog set-top boxes and digital set-top boxes. Analog set-top box to receive analog signals, digital set-top boxes receive digital signals. Digital set-top box is a multimedia terminal, similar to the home computer hardware architecture and dedicated real-time operating system and application software.