ACCESS.bus

The ACCESS.bus (often also abbreviated as Ab ) was a peripheral bus for connecting various devices to a PC .

When it became clear in the early 1990s that the old interfaces such as serial, PS / 2 and game port no longer meet the requirements of modern computers for input and other peripheral devices, the idea of ​​using the I²C bus as an external interface was developed at Philips . With 100kbit / s, the Access.bus was clearly inferior to the USB, which appeared on the market a little later, and could never achieve any significant importance. An additional problem is that license payments were due for the use of Access.bus in devices, but not for USB.

In the mid-1990s there were some joysticks , mice and keyboards with Access.bus interfaces, as well as some prototypes of other devices, but very few of them ever reached the market.

Web links

• I2C bus / access bus description