Since 1879 Business Machines have been designed and manufactured by the NCR company

The early class of machines were either one or two digits class numbers. In 1908 the new or updated models were, in general, given three digit class numbers until the 1970’s when 4 digit class numbers were introduced.  

In general, NCR's products are numbered according to generic type of equipment:
• 17XX — Automated Teller Terminals (ATMs)
• 18XX — Self Service terminals
• 21XX — Retail terminals
• 22XX — Financial terminals
• 26XX — Thermal Printing terminals
• 28XX — Factory data collection systems
• 29XX — |General-purpose terminals
• 3XXX — NCR Comten products
• 32XX — Personal Computers
• 36XX — NCR Comten communications processors
• 42XX — Computer Output Microfiche (COM) duplicators
• 43XX — Computer Output Microfiche (COM) readers
• 50XX — Automated teller machines and financial terminal workstations
• 53XX — Computer Output Microfiche (COM) processors
• 63XX — Magnetic Tape Drives
• 64XX — Printers
• 65XX — Microcomputers
• 67XX — Item Processing, Magnetic Ink Character Recognition
                    (MICR) readers/sorters
• 68XX — Magnetic tape handlers
• 70XX — General purpose systems
• 75XX — Item processing equipment
• 77XX — Proof and encode equipment
• 78XX — Scanning equipment for use with
                       UPC (Universal Product Code),                
                      EAN (European Article Number),
                       and JAN (Japanese Article Number)
• 79XX — General purpose video display terminals
• 85XX — Mainframe Computers V-System computers (Virtual)
• 86XX — Mainframe Computers V-System computers (Virtual)
• 90XX — I-System computers (Interactive) multi-user

ADDS products 21
Software
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