I moved to an electronic logbook circa 1990, very shortly after leaving the RAF. The first one was Microlog; written by a BA pilot; based on Clipper (that dates it!); and later I moved to RosterLog. The latter worked out my FTLs, allowances and overtime payments as well. At the end of each month I printed out the flying for that month and put it in a clear pocket display book. Job done.
I am amazed that the RAF is still using quill pens
YS