IBM 1401 Simulator Configuration

The IBM 1401 was introduced in 1960 as an I/O pre- and post-processor for its 36-bit mainframes. In addition, it was the first widely used small business computer.

Photographs (courtesy of Paul Pierce):

Option

Description

Capacity

CPU and memory

IBM 1401

4K - 16K characters

CPU special features          

advanced programming (indexing)          

compare high-low-equal
branch on bit equal
modify address
move record

extended print edit

multiply/divide

Console

1407 inquiry terminal

Cards

1402 card reader punch

Line printer

1403 line printer

Disk 1311 disk pack 2M characters

Magnetic tape

7 track magnetic tape


Updated 08-Aug-2020 by Bob Supnik (simh AT groups DOT io - anti-spam encoded)