ibm 727造句

Early IBM tape drives, such as the IBM 727 and IBM 729, were mechanically sophisticated floor-standing drives that used vacuum columns to buffer long u-shaped loops of tape.
The 7080 system included the IBM 7622 Signal Control, which converted transistor signal levels to levels usable with first generation equipment, allowing all 705 peripherals, including punched card input / output, line printers and the IBM 727 magnetic tape drives, to be used on the 7080.
It's difficult to find ibm 727 in a sentence. 用ibm 727造句挺难的