Newsgroup: it.cultura.linguistica.inglese
Titolo: not (in algebra booleana)

Mi confermate che in inglese "a negato" si dice "a not" invece che "not a"? 
A me pare un po' strano...
Ciao,
Enrico il Pentolaio.
-- 
She's not worth it. Or is she? 

 a"?
I don't think so , though I'm not a mathematician .
Haven't used Boolean expressions for some time , but I'd expect NOT a (or 
NOT A) .
Mike 

 NOT A) .
Ah ecco, oggi infatti ci sono rimasto un po' male quando ho sentito "a not" 
a lezione. Va be'.
:-)



"Not a" is what we Americans would say.
But, along the same lines, on logic diagrams in electronics, each input and
output on a diagram is given a name, such as "a" or "clock". If the active
state of the signal is negative, then a bar (overline) is drawn over the
signal name to indicate this negative active state. Since the signal names
must also be input into CAD programs, rather than use an overline, the
inverted signal name is typed with a dash after it to indicate inversion,
for example, "a-" or "clock-". This makes it easier to sort signal names in
a database. "Clock" would be followed by "clock-" in the database, thus
making it easy to identify related signals  When we refer to these inverted
signals, we say "a bar" and "clock bar".
«...the clock and the clock bar signal inputs to the register are both held
simultaneously high"...»
http://www.patentstorm.us/patents/7039842-description.html
Does anyone know how Italians refer to this type of logic signal notation?
Joe from Massachusetts

 wrote:

I'd say something like "gli ingressi clock e clock negato vengono tenuti
alzati contemporaneamente" (I haven't read your link, though).
-- 
aggiungo, non ha più senso comprarsi un piano se 
deve suonare [la chitarra] in quel modo?

 a database. "
Uhm... quello chissà quando lo studierò.
:-)
Ciao,
Enrico il Pentolaio.
-- 
"Solo che filosofare oggi, così ridotti come siamo, è come in una gelida 
giornata d'inverno farsi addosso una pisciatina per sentire un po' di 
teporino…" 

 wrote
in message news:1i68nu4.1wca3k0at1ffqN%pikkio....@ranocch.io...

I was just wondering in general if you used something related to "bar" to
indicate inversion, but I see you do not.
Joe from Massachusetts


 On digital logic drawings, the same physical chip can be drawn in 2
different ways, depending on its logical function. The "7400" NAND gate,
which is the "building block" of digital logic, functions logically as a
NAND gate «Y(L) = A(H) • B(H)», or as a NOR gate «Y(H) = A(L) + B(L)»,
depending on its function in a circuit. In the first case, it would be drawn
as an ÄND gate with an inverted output, and in the second case it would be
drawn as an OR gate with inverted inputs. It is much easier to troubleshoot
a logic board whose diagram has been "demorganized" in this way.
Joe from Massachusetts

 different ways, depending on its logical function.[...]
Great, now I know who to entrust when I'm in trouble with digital nets (si 
dice così reti logiche, giusto?).
;-)
Cheers,
Enrico il Pentolaio.
-- 
"Solo che filosofare oggi, così ridotti come siamo, è come in una gelida 
giornata d'inverno farsi addosso una pisciatina per sentire un po' di 
teporino…" (Giorgio Gaber) 

 alzati contemporaneamente" (I haven't read your link, though).
Ma anche "gli ingressi clock e clock segnato ..."
"Segnato" fa riferimento al nome del segnale, "negato" al suo significato.
W.


I don't think you meant "digital nets".
http://www.mat.sbg.ac.at/~schmidw/nfn/
Joe from Massachusetts

 
http://www.mat.sbg.ac.at/~schmidw/nfn/
Ops! Beh, uno dei due libri del corso si chiama "reti logiche", titolo che 
in inglese era "logic and computer design fundamentals".
Ciao,


 a"? A me pare un po' strano...
Boh, anche in italiano dice "a not", "b not", "c not". Valla a capi'...
Ciao,
Enrico il Pentolaio.
-- 
"Solo che filosofare oggi, così ridotti come siamo, è come in una gelida 
giornata d'inverno farsi addosso una pisciatina per sentire un po' di 
teporino." (Giorgio Gaber)