Original sentence: "  The number for the CPU itself started with "20" so the CPU for an S/360 Model 20 was numbered 2020.Card-handling equipment: 2501 (reader), 2560 (MFCM).Disk drives and other random-access devices: IBM 2311, IBM 2314.Each type of peripheral had a different second digit:.Printers were the 1403 and the slower 1443.Punch card devices included the 2501 card reader and the 2540 card reader punch.The aforementioned 2560 MFCM was for the Model 20 only.There was also a paper tape reader introduced in 1966 or 67, the 2671.These earlier peripherals had 4-digit numbers starting with 14, such as the IBM 1403 chain printer
Edited sentence: "  The Number for the CPU itself started with "20" so the CPU for an S360/20 was numbered 2020.And yes, there was a paper tape reader introduced in 1996 or 97, the 2671.Card-handling equipment: 2501 (reader), 2560(MFCM).Disk drives: IBM 2311,IBM 2314.Each type of peripheral had a diffent second digit.Printers were the superb (IMHO) 1403 and the slower 1443.Punch card devices included the 2501 card reader and the ubiquitous 2540 card reader punch.The aforementioned 2560 MFCM was for the model 20 only.These earlier peripherals had 4-digit numbers starting with 14, such as the ubiquitous IBM 1403 chain printer