Original sentence: A big selling point is that applications can run without modification on any model in the product line, from small, single-processor machines up to those with 64 multi-core CPUs (apparently this was a novelty for the IBM world).Features include a DBMS (DB2/400), a menu-driven interface, multi-user support, terminals (IBM 5250) and printers, security, communications, client-server and web-based applications and an extensive library-based operating system, OS/400
Edited sentence: A big selling point is that applications can run without modification on any model in the product line, from small, single-processor machines up to those with 64 multi-core CPUs.Features include an extremely fast DBMS (DB2/400), a menu-driven interface, multi-user support, terminals (IBM 5250) and printers, security, communications, client-server and web-based applications and an extensive library-based operating system, OS/400.In 1995 it was the first to employ a 64-bit processor and operating system