The Keyboard Component added an 8-bit 6502 processor making the Intellivision a dual processor computer. It had 16K 10-bit shared RAM that could load and execute both Intellivision CP1610 and 6502 program code from tape; a large amount as typical cartridges of the day were 4K. The cassettes have two tracks of digital data and two tracks of analog audio completely controlled by the computer. Two tracks are read only for the software, and two tracks for user data. The tape-drive was block addressed with high speed indexing. A high resolution 40x24 monochrome text display could overlay regular Intellivision graphics. There was an input for a microphone and two additional expansion ports for peripherals and RAM expansion. The Microsoft BASIC programming cartridge used one of these ports. Expanded memory cartridges could support 1000 8KB pages. A third pass-through cartridge port was for regular Intellivision cartridges. It uses the Intellivision's power supply. A 40-column thermal printer was available, and a telephone modem was planned along with voice synthesis and voice recognition.