3 ms·
IBM mainframes likely offer a high level of backward compatibility, so these companies can upgrade the hardware and keep the programs more or less untouched. A
by mahogany 5y ago
IBM mainframes likely offer a high level of backward compatibility, so these companies can upgrade the hardware and keep the programs more or less untouched.
Also, I wouldn't be surprised if IBM does a lot of the maintenance for you, on the hardware side.
- the_only_law 5y ago> IBM mainframes likely offer a high level of backward compatibility Just to add from what I’ve read. A zmachine purchased within the last several years could run in modified S/360 binaries.