A
- Michael Abrash - Popularized Mode X for DOS. This allows for faster video refresh and square pixels.
- Scott Adams - one of earliest developers of CP/M and DOS games
- Leonard Adleman - co-creator of RSA algorithm (the A in the name stands for Adleman), coined the term computer virus
- Alfred Aho - co-creator of AWK (the A in the name stands for Aho), and main author of famous Dragon book
- JJ Allaire - creator of ColdFusion Application Server, ColdFusion Markup Language
- Andrei Alexandrescu - author, expert C++, D languages
- Paul Allen - Altair BASIC, Applesoft BASIC, co-founded Microsoft
- Eric Allman - sendmail, syslog
- Marc Andreessen - co-creator of Mosaic, co-founder of Netscape
- Bill Atkinson - QuickDraw, HyperCard
Read more about this topic: List Of Programmers