Cisco Cisco Explorer Set-top Software Version 2.1 User Guide
749244 Rev G
A group of servers and other resources that act like a single system and enable high
availability and, in some cases, load balancing and parallel processing.
An encryption/decryption process, which provides access to the broadcaster's services and
ensures secure purchase transactions for interactive services.
A system for preventing the unauthorized reproduction of copyrighted media through setting
the copy protection levels for a program or service. There are three types of copy protection
settings: Copy freely, Copy once (high-value), and Copy never (high-value)
customer premise equipment. Network devices (PCs, set-top boxes) that are located at a
customer site and connect to a cable modem (CM) or other access network.
Central processing unit.
The bus (connections between and within the CPU, memory, and peripherals) that is used to
carry data to and from a processing unit or storage device.
Digital Audio Visual Council. DAVIC is becoming the industry standard for end-to-end
interoperability of broadcast and interactive digital audio-visual information and of
Digital data service.
A device that receives a digital signal and converts it back into an analog signal.
The process of decoding encrypted data into its original and understandable language.