1292 Advanced Programmable Video System

• Sprites: 4 single colour sprites (1 can be 8 colours)
• 1 score line displaying 4 BCD digits
• Background consisting of a series of alternating lines

• The early games cartridges used a 2 KByte ROM, later ones, such as Activision branded ones, up to 8 KBytes
• Very basic arcade machine sound

An expensive (£49 in the UK in 1977) Hobby Module was available which gave 6.5 kb of user-programmable memory and had a 5 pin DIN socket to allow software to be saved to a cassette tape player. This converted the unit into a halfway house between a home computer and an ordinary gaming console.

The user had to be familiar with programming in Signetics 2650 assembly language and the unconventional ways and register architecture of the Signetics 2650 processor. For example, on many other processors an opcode 0 indicates "no operation" whereas on the 2650 it instructs the processor to Branch To Address In Immediate Register B. This was a source of many software debugging hassles for budding home programmers.

Although, not much information is known about the release dates of the cartridges, the total number of the games should be 59 (33 games released by Radofin between 1977–1978, 19 games for the Interton VC-4000 and compatibles after 1978, and 7 more games released around 1980).[1]