The Motley Fool Discussion Boards

Previous Page

Computers, Phones & Internet / Help with this STUPID computer!

URL:  http://boards.fool.com/actually-the-whole-issue-of-whether-something-is-30299162.aspx

Subject:  Re: Yet another Java flaw Date:  10/4/2012  7:07 AM
Author:  JeanDavid Number:  182055 of 188749

Actually, the whole issue of whether something is compiled, interpreted, emulated, etc., is pretty funny. Some IBM/360 computers had a very different hardware instruction set from that presented to the programmers. The machine was microprogrammed present the System/360 architecture to the programmers. On some models, you could use a different microprogram and the box would appear to be an IBM 7094.

At another level, some microprocessor chips are microprogrammed to present a different instruction set and register structure. I believe even the current Intel *86 chips are not much like the architecture that is presented to the programmers, though they cannot change the microprogram.
Copyright 1996-2014 trademark and the "Fool" logo is a trademark of The Motley Fool, Inc. Contact Us