> SCAP downloads Corporate Files On-Line (CFOL) data from the IBM mainframe at the Enterprise Computing Center, Martinsburg. The CFOL data resides in a variety of formats
(packed decimal, 7074, DB2, etc.).
> That might be some of the oldest running code in the world.
https://www-03.ibm.com/ibm/history/exhibits/dpd50/dpd50_chro... says The IBM 9090 SABRE airline reservation system begins to be installed by American Airlines in 1961. That makes SABRE contemporaneous with the IRS Master Files or slightly older. I do not know, however, how much of that code is running today.
> January 1962 Automated data processing was officially put into operation in the IRS.
https://www.irs.gov/pub/irs-soi/62dbfullar.pdf says
> --Dn September 19, 1961, less than a year following its establishment as a separate division, the Automatic Data Processing Division...
So the division was likely established in 1960. This https://books.google.ca/books?id=x1YESXanrgQC&pg=PA119&lpg=P... history corroborates by saying the treasury authorized the IRS to computerize fully in 1959.
They were 7074, we know that from http://blog.modernmechanix.com/big-brother-7074-is-watching-... Popular Science but also that some docs from 2016 says https://www.irs.gov/pub/irs-utl/scap-pia.pdf
> SCAP downloads Corporate Files On-Line (CFOL) data from the IBM mainframe at the Enterprise Computing Center, Martinsburg. The CFOL data resides in a variety of formats (packed decimal, 7074, DB2, etc.).
> That might be some of the oldest running code in the world.
https://www-03.ibm.com/ibm/history/exhibits/dpd50/dpd50_chro... says The IBM 9090 SABRE airline reservation system begins to be installed by American Airlines in 1961. That makes SABRE contemporaneous with the IRS Master Files or slightly older. I do not know, however, how much of that code is running today.