Notes was conceived in 1984 and at the time was an amazing platform which featured a secure client/server architecture, RSA encryption, data replication and off

Notes was conceived in 1984 and at the time was an amazing platform which featured a secure client/server architecture, RSA encryption, data replication and offline support. Both the Notes client and the server (later renamed to Domino) needed to run on multiple platforms (Win 3.x, OS/2, Netware, NT, Alpha, RISC systems etc), and while the code was native C code on each platform, all UI of the client was implemented using an abstraction layer called NEM ("Notes Environment Manager"). Likewise, all database storage was abstracted in NSF ("Note Storage Facility"; and Notes databases to this day still have the .nsf extension). Long story short, the NEM layer was a trade-off between portability and consistency across platforms. And, Notes used F9 to refresh data, way before the Windows standard of F5 was a standard... https://www.ibm.com/developerworks/lotus/library/ls-NDHistory/ls-NDHistory-pdf.pdf https://www.ibm.com/developerworks/lotus/library/ls-NDHistor...