Who makes the most reliable computers? Lenovo, closely followed by Apple, if you believe online service and support company Rescuecom’s latest reliability audit, derived from more than 20,000 calls made by the firm’s customers during the second quarter this year. Rescuecom assigned a reliability rating to computer vendors. Lenovo, in its guise as provider of IBM desktops and notebooks, scored 243. Apple attained 201. Third-placed HP/Compaq scored a mere 12. Dell’s rating was 4, Gateway -12 and all the rest together scored -16.