In a data processing system employing a virtual storage system, a plurality of address translation pairs each consisting of a logical address in a virtual storage space and a real address in a real storage space, are registered in a buffer storage device to swiftly translate a logical address into the...http://www.google.com.hk/patents/US4068303?utm_source=gb-gplus-share專利 US4068303 - Address translation managing system with translation pair purging
