The VC-4000 is powered by a Signetics 2650A CPU (same as the Arcadia 2001) and a Signetics 2636 Video Controller. The two controllers are composed of a 12-key keypad, 2 fire buttons and an analog joystick. On the control panel of the system, one can find an on/off switch and three buttons: RESET, SELECT and START.
The console was produced by different companies and sold with different names. Not every console is compatible with others due to differences in the shapes and dimensions of the cartridge slots, but all of the consoles are software compatible. In the article about the 1292 Advanced Programmable Video System there is a table with all the software compatible consoles grouped by compatibility family (due to the slots).