Linked by Thom Holwerda on Tue 15th Jan 2013 22:29 UTC
Hardware, Embedded Systems "In this article, I show at the transistor and silicon level. I've discussed the mathematics of the 6502 overflow flag earlier and thought it would be interesting to look at the actual chip-level implementation. Even though the overflow flag is a slightly obscure feature, its circuit is simple enough that it can be explained at the silicon level."
Thread beginning with comment 549046
To view parent comment, click here.
To read all comments associated with this story, please click here.
RE[3]: Comment by MOS6510
by Laurence on Wed 16th Jan 2013 17:32 UTC in reply to "RE[2]: Comment by MOS6510"
Laurence
Member since:
2007-03-26

Most don't even know what a nibble is!

Aren't they the snakes that used to inhabit that QBasic game which shipped with DOS once upon a time? :p


...In all seriousness, I can forgive people for not knowing what a nibble is; there isn't much need to deal with half-octets in most cases. But understanding that computers process in binary is pretty much covered in the 1st chapter of "The Idiots Guide To Those Magic Computing-Boxes".

Reply Parent Score: 2

RE[4]: Comment by MOS6510
by MOS6510 on Wed 16th Jan 2013 17:51 in reply to "RE[3]: Comment by MOS6510"
MOS6510 Member since:
2011-05-12

I once did an AIX course, also present were a number of Microsoft certified chaps. They wanted to know where the GUI was, how to join a domain and if you could rename root to Administrator(!).

Most Microsoft experts know very little of Linux and what they know is wrong.

But they make good money, so it's possible to be succesful at IT without knowing anything beyond your subject of expertice.

BTW the AIX course came down to: type 'smit' and fiddle around with the menu.

Reply Parent Score: 2

RE[5]: Comment by MOS6510
by tidux on Thu 17th Jan 2013 00:01 in reply to "RE[4]: Comment by MOS6510"
tidux Member since:
2011-08-13

So THAT's the target audience for Fedora 18!

Reply Parent Score: 2

RE[5]: Comment by MOS6510
by Laurence on Thu 17th Jan 2013 08:57 in reply to "RE[4]: Comment by MOS6510"
Laurence Member since:
2007-03-26

AIX isn't Linux (or was that a separate point you were making?)

I know what you mean though. I'm a Linux and UNIX administrator by trade, and these days I struggle to fix even basic Windows problems. Back in the days of XP (and every version of Windows that preceded it, both NT and DOS branches), I knew where everything was and how to fix many of even the most obscure of errors. But the last version of Windows I ran at home was Win2000 (I was only familiar with XP because of the similarities) and since then Vista, 7 and 8 have all changed everything around. Now I struggle even just finding networking control panels (in fact I don't understand how people prefer the new control panel layout as it's a nightmare if you know where you want to end up but not what hyperlinks you need to click to get there!)

Thankfully Windows does have some CLI tools which have been pretty static over the years. But there's a hell of a lot in Windows which doesn't have a CLI to and I end up having to guess to find the GUI on the rare occasions I am called up to fix a Windows PC (which, thankfully, is very rare these days)

Reply Parent Score: 2