In the early 1970s, I worked in operations at Montgomery Ward's computer center in Chicago. It was the era of Big Iron, dominated by IBM, whose System/360 line of mainframe computers was used by government, larger corporations, and big universities. If you were part of this era, the images in this gallery may bring back a lot of memories. For an additional nostalgia fix, check out the article 10 things I miss about Big Iron.
The picture above shows the Model 360/30 CPU and operator's console (left), tape drives, card reader/punch, and disk drives (right, back to front). We had several of these systems. One handled all the daily shoe orders nationwide, in 32K (yes, that's K) of RAM.
Courtesy of International Business Machines Corporation, © International Business Machines Corporation.