Later On

A blog written for those whose interests more or less match mine.

Now that was a computer: IBM 1401

with one comment

The IBM 1401 and 1401 two-tape Autocoder marked the real beginning of my programming experience. I had worked at IBM General Products Development Lab the summer after I graduated on the 1410, a bigger successor machine, but the 1401 in Iowa City was where I really started programming. 8K of core memory (RAM was made of tiny donut-shaped magnets: cores) and, of course, no operating system whatsoever—this was before operating systems…

The thing on the left is your card reader/punch. The CPU is in the center, the printer at the right. Hot stuff.

The the 360 series came along and blew the 14xx series out of the water, though headquarters personnel had to individually reassign the 14xx series developers to other projects to break up the team, because they wouldn’t stop working on the 14xx.

Written by LeisureGuy

4 October 2006 at 6:03 pm

Posted in Technology

One Response

Subscribe to comments with RSS.

  1. How about 8K 1401 and no tape SPS? That was my first experience.


    24 September 2009 at 10:26 pm

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.