Just for fun, here is a partial list of only some of the tools and technologies I've used in the past (each for a significant amount of time) which are of no value today.
- assembly language (6502,6809,68000,...)
- Pascal
- BASIC
- Modula-2
- Modula-3
- Prolog
- APL
- Smalltalk
- Scheme
- PILOT
- Ada
- REXX
- AWK
- ML
- Tcl
- Fortran
- Miranda
- Object Pascal
- PL/I
- SPSS
- Hypercard
- dBase
- Lotus 1-2-3
- TeX/LaTeX
- Logo
- SGML
- AOLserver
- Think Class Library
- MPW
- MacApp
- PowerPlant
- MFC
- XVT
- Think Pascal
- Think C
- Turbo Pascal
- Codewarrior
- Mac OS Classic (3.0-9)
- Windows 3.0-
- OS/2
- OS/9
- MS-DOS
- NeXT
- Gopher
- WAIS
- Archie
- CVS
- RCS
- SCCS
- Appletalk, MacTCP, Quickdraw, ...
- Mac device drivers
- ResEdit
- troff/nroff
- curses
- Winsock
- Windows batch files
- 8",5.25",3.5" disks, cassettes
- analog modems
- self-modifying code
- 8-bit and 16-bit anything
- VMS
- MVS/TSO
- JCL
- InterViews
- SUIT
- Visual Basic
- XLib
- BITNET/ARPANET
I'm 43, which in many fields would be considered mid-career. Why would anyone not take up a career in computer science today?
