I am a biologist by training but was always curious about computers. I was lucky to have access to a digital(TM) VAX computer in the 80's and I wrote my PhD thesis using the EDT editor in VMS. The first editor I used was "ed" the ancestor of "vi" and I cannot recall a single command for that! That system ran "multics" but I had no idea what it meant at the time. (FYI it is the commercial ancestor to Unics - now Unix and mostly Linux...) Later in life I used Silicon Graphics Unix (IRIX) system and used that system to make lots of virus structure images found still on "VirusWorld" online. I now teach NEXT GEN SEQUENCING ANALYSIS under LINUX at the UW-Madison Biotechnology Center after about 10 years teaching about microarrays using R. I also teach hands-on workshops at the BIOCHEMISTRY Dept. and about 4 years ago I discovered RStudio and RMarkdown and I find it fascinating. This year I jumped to using BOOKDown and also tried Blowdown. The whole process is amazing for the process of "Reproducible Research."