They were called red books ;) i loved reading through them even though i didn't know assembly and often the content was waaaaaaaay over my fragile little mind.

They were called red books ;) i loved reading through them even though i didn't know assembly and often the content was waaaaaaaay over my fragile little mind. https://en.wikipedia.org/wiki/IBM_Redbooks https://en.wikipedia.org/wiki/IBM_Redbooks