Why are C, C++, and LISP so prevalent in embedded devices and robots?

Question

It seems that the software language skills most sought for embedded devices and robots are C, C++, and LISP. Why haven\'t more recent languages made inroads into these applicat

Answer 1

I once fell over this interesting snippet on using Lisp at NASA: http://www.flownet.com/gat/jpl-lisp.html

In 1994 JPL started working on the Remote Agent (RA), an autonomous spacecraft control system. RA was written entirely in Common Lisp despite unrelenting political pressure to move to C++. At one point an attempt was made to port one part of the system (the planner) to C++. This attempt had to be abandoned after a year. Based on this experience I think it's safe to say that if not for Lisp the Remote Agent would have failed.