The invention relates to a portable user controlled pointing peripheral device enabling connection of a memory and/or microcomputer module (44) to a processing machine, without requiring a specific connector and/or interface circuit, while preserving the portable nature of such a module. The main characteristic...http://www.google.com/patents/US5341421?utm_source=gb-gplus-sharePatent US5341421 - Security device, including a memory and/or a microcomputer for data processing machines
