Svaki digitalni računar mora da sadrži logička I (and) kola. Izum kola je morao da se pojavi pre nego što se pojavio prvi digitalni računar.
Ko je izumeo logičko I kolo?
Zaključano
Zakačeno
Ne mora da sadrži AND kolo.
Kompletna relaciona logika može da se uradi sa NAND kolom.
Druga opcija je NOR kolo.
Kombinacija AND, OR, i NOT je bila dosta popularna zato što deluje "logično", ali kad računar projektuje računare, najčešće se ide na NAND logiku.
https://en.wikipedia.org/wiki/Logic_gate#History_and_development
Kompletna relaciona logika može da se uradi sa NAND kolom.
Druga opcija je NOR kolo.
Kombinacija AND, OR, i NOT je bila dosta popularna zato što deluje "logično", ali kad računar projektuje računare, najčešće se ide na NAND logiku.
https://en.wikipedia.org/wiki/Logic_gate#History_and_development
Možda je sada NAND, ali u početku beše AND i bi dobro. Uostalom, NAND ti je kao AND ali u nekom naopakom svetu. Kao da je neko stavio invertor iza AND. Možda da bi izbegao AND patent? Vraćamo se na početno pitanje, ko je patentirao AND kolo?
Potraži, tj. proguglaj: digitalna integralna kola, flip-flop, digitalna elektronika i tako to.
A pre toga proguglaj pojmove: George Bool, (i bulova algebra), Alan Turing, Ada Lovelace i tako, ti i slični likovi.
A pre toga proguglaj pojmove: George Bool, (i bulova algebra), Alan Turing, Ada Lovelace i tako, ti i slični likovi.
Potpis
OTPOR blokadi ulica, OTPOR blokiranom Beogradu, OTPOR blokiranoj Srbiji
Pa NAND je univerzalno kolo, uz pomoc NAND-a mozes da realizujes sve ostale binarne operacije. Tako da citav procesor moze da se napravi uz pomoc samo NAND gate-ova...
https://en.wikipedia.org/wiki/NAND_logic
https://en.wikipedia.org/wiki/NAND_logic
@Java
Bool je onaj što je izmislio true i false. Ada je Bajronova ćerka i pisala je programe za nepostojeći računar. Alan Tjuring je gej koji je dešifrovao nemačke poruke, ali to nije bilo dovoljno dobro za Britance jer je bio gej. Međutim, mene zanima ko je prvi patentirao AND kolo. To je moralo da se desi pre Alana i Kolosusa, a nakon Bula i Ade.
@bananaphone
NAND je
--> |AND|-->] NOT|
Mene zanima AND jer je AND osnova svega.
Bool je onaj što je izmislio true i false. Ada je Bajronova ćerka i pisala je programe za nepostojeći računar. Alan Tjuring je gej koji je dešifrovao nemačke poruke, ali to nije bilo dovoljno dobro za Britance jer je bio gej. Međutim, mene zanima ko je prvi patentirao AND kolo. To je moralo da se desi pre Alana i Kolosusa, a nakon Bula i Ade.
@bananaphone
NAND je
--> |AND|-->] NOT|
Mene zanima AND jer je AND osnova svega.
Citat:
History and development
The binary number system was refined by Gottfried Wilhelm Leibniz (published in 1705), influenced by the ancient I Ching's binary system.[4][5] Leibniz established that, by using the binary system, the principles of arithmetic and logic could be combined.
In an 1886 letter, Charles Sanders Peirce described how logical operations could be carried out by electrical switching circuits.[6] Eventually, vacuum tubes replaced relays for logic operations. Lee De Forest's modification, in 1907, of the Fleming valve can be used as a logic gate. Ludwig Wittgenstein introduced a version of the 16-row truth table as proposition 5.101 of Tractatus Logico-Philosophicus (1921). Walther Bothe, inventor of the coincidence circuit, got part of the 1954 Nobel Prize in physics, for the first modern electronic AND gate in 1924. Konrad Zuse designed and built electromechanical logic gates for his computer Z1 (from 1935–38).
From 1934 to 1936, NEC engineer Akira Nakashima introduced switching circuit theory in a series of papers showing that two-valued Boolean algebra, which he discovered independently, can describe the operation of switching circuits.[7][8][9][10] His work was later cited by Claude E. Shannon, who elaborated on the use of Boolean algebra in the analysis and design of switching circuits in 1937.[9] Using this property of electrical switches to implement logic is the fundamental concept that underlies all electronic digital computers. Switching circuit theory became the foundation of digital circuit design, as it became widely known in the electrical engineering community during and after World War II, with theoretical rigor superseding the ad hoc methods that had prevailed previously.[10]
Metal-oxide-semiconductor (MOS) logic originates from the MOSFET (metal-oxide-semiconductor field-effect transistor), invented by Mohamed M. Atalla and Dawon Kahng at Bell Labs in 1959.[11][12] They first demonstrated both PMOS logic and NMOS logic in 1960.[13] Both types were later combined and adapted into complementary MOS (CMOS) logic by Chih-Tang Sah and Frank Wanlass at Fairchild Semiconductor in 1963.[14]
Active research is taking place in molecular logic gates.
The binary number system was refined by Gottfried Wilhelm Leibniz (published in 1705), influenced by the ancient I Ching's binary system.[4][5] Leibniz established that, by using the binary system, the principles of arithmetic and logic could be combined.
In an 1886 letter, Charles Sanders Peirce described how logical operations could be carried out by electrical switching circuits.[6] Eventually, vacuum tubes replaced relays for logic operations. Lee De Forest's modification, in 1907, of the Fleming valve can be used as a logic gate. Ludwig Wittgenstein introduced a version of the 16-row truth table as proposition 5.101 of Tractatus Logico-Philosophicus (1921). Walther Bothe, inventor of the coincidence circuit, got part of the 1954 Nobel Prize in physics, for the first modern electronic AND gate in 1924. Konrad Zuse designed and built electromechanical logic gates for his computer Z1 (from 1935–38).
From 1934 to 1936, NEC engineer Akira Nakashima introduced switching circuit theory in a series of papers showing that two-valued Boolean algebra, which he discovered independently, can describe the operation of switching circuits.[7][8][9][10] His work was later cited by Claude E. Shannon, who elaborated on the use of Boolean algebra in the analysis and design of switching circuits in 1937.[9] Using this property of electrical switches to implement logic is the fundamental concept that underlies all electronic digital computers. Switching circuit theory became the foundation of digital circuit design, as it became widely known in the electrical engineering community during and after World War II, with theoretical rigor superseding the ad hoc methods that had prevailed previously.[10]
Metal-oxide-semiconductor (MOS) logic originates from the MOSFET (metal-oxide-semiconductor field-effect transistor), invented by Mohamed M. Atalla and Dawon Kahng at Bell Labs in 1959.[11][12] They first demonstrated both PMOS logic and NMOS logic in 1960.[13] Both types were later combined and adapted into complementary MOS (CMOS) logic by Chih-Tang Sah and Frank Wanlass at Fairchild Semiconductor in 1963.[14]
Active research is taking place in molecular logic gates.
Da si se samo potrudio da klikneš na link koji sam ostavio...
Kliknuo sam na link, ali nisam uspeo da nađem ono što me zanima. Nisam uspeo da nađem ni u citatu koj si ostavio. Međutim uspeo sam da izguglam inicijale pronalazača AND kola, N.T. Mora da je to Nikola Tesla.
Pa dobro, tesko da ce se koristiti samo NAND, jer moze da iskomplikuje kolo neke zeljene funkcije.
Može, samo je potrebnan invertor iza NAND kola i onda dobijamo NNAND, odnosno AND.
P.S.
Definitivno Tesla.
It is a little known fact that Nikola Tesla is the acknowledged inventor of the electronic AND logic gate circuit, a critical element of every digital computer.
http://www.tfcbooks.com/teslafaq/q&a_024.htm
P.S.
Definitivno Tesla.
Citat:
It is a little known fact that Nikola Tesla is the acknowledged inventor of the electronic AND logic gate circuit, a critical element of every digital computer.
http://www.tfcbooks.com/teslafaq/q&a_024.htm
Citat:
bananaphone:
Pa NAND je univerzalno kolo, uz pomoc NAND-a mozes da realizujes sve ostale binarne operacije. Tako da citav procesor moze da se napravi uz pomoc samo NAND gate-ova...
https://en.wikipedia.org/wiki/NAND_logic
Pa NAND je univerzalno kolo, uz pomoc NAND-a mozes da realizujes sve ostale binarne operacije. Tako da citav procesor moze da se napravi uz pomoc samo NAND gate-ova...
https://en.wikipedia.org/wiki/NAND_logic
Naravno, to je tako u teoriji. Ali u praksi, zašto bi radio propagaciju signala kroz deset - dvadeset tranzistora (i sabirao latenciju svakog) ako možeš kroz jedan ili dva.
Potpis
OTPOR blokadi ulica, OTPOR blokiranom Beogradu, OTPOR blokiranoj Srbiji
^ Upravo, nedaj Boze da treba da se nabudzi kolo za resavanje diferencijalne jedancine.
Za rešavanje diferencijalnih jednačina mogu se koristiti i analogni računari. Prvi analogni računar, Hidrointegrator, konstruisao je Mika Alas. Uređaj je predstavljen 1900. godine na izložbi u Parizu.
Citat:
Java Beograd:
Naravno, to je tako u teoriji. Ali u praksi, zašto bi radio propagaciju signala kroz deset - dvadeset tranzistora (i sabirao latenciju svakog) ako možeš kroz jedan ili dva.
Citat:
bananaphone:
Pa NAND je univerzalno kolo, uz pomoc NAND-a mozes da realizujes sve ostale binarne operacije. Tako da citav procesor moze da se napravi uz pomoc samo NAND gate-ova...
https://en.wikipedia.org/wiki/NAND_logic
Pa NAND je univerzalno kolo, uz pomoc NAND-a mozes da realizujes sve ostale binarne operacije. Tako da citav procesor moze da se napravi uz pomoc samo NAND gate-ova...
https://en.wikipedia.org/wiki/NAND_logic
Naravno, to je tako u teoriji. Ali u praksi, zašto bi radio propagaciju signala kroz deset - dvadeset tranzistora (i sabirao latenciju svakog) ako možeš kroz jedan ili dva.
Nemoj sad da me drzis za rec, ovo je uceno pre 20+ godina, tako da je dosta izlapelo, a i preko toga sigurno se tehnologija "malo" promenila
Fora je u tehnologiji silikona - mikroelektronici, odnosno kako se realizuje u silikonu grupa tranzistora koja pretstavlja odredjeno logicko kolo.
I NAND kolo ima fizicke osobine (pre svega dimenzije u silikonu, brzina, potrosnja itd) koje ga cine povoljnijim od drugih kola (NOR kolo koje je isto univerzalno, i koristi isti broj tranzistora zbog dimenzija i brzine, nije toliko popularno).
Tako da je vecina ostalih kola realizovana uz pomoc NAND-a, odnosno NAND je taj tvoj "tranzistor" - odnosno osnovni element od kog pravis CPU.
AND nije baza iskazne algebre dok NAND jeste baza iskazne algebre.
Zato se sa AND neće napraviti računaljka ali sa NAND hoće.
NOR je takodje baza iskazne algebre.
To ne znači da se računar ne može napraviti bez NAND kola.
Može sa {AND, OR, NOT}.
E sad, NAND = NOT(AND).
Tako da svi ste u pravu.
Zato se sa AND neće napraviti računaljka ali sa NAND hoće.
NOR je takodje baza iskazne algebre.
To ne znači da se računar ne može napraviti bez NAND kola.
Može sa {AND, OR, NOT}.
E sad, NAND = NOT(AND).
Tako da svi ste u pravu.
1Sviđa mi se :thumbsup: 1
Algebru mozes definistati kako hoces obicno operacije + i puta pa kako ih definises.
Bulova algebra je and (puta) i or (+) i not.
Bulova algebra je and (puta) i or (+) i not.
@Zurg, nisam odgovorio na tvoje orginalno pitanje, orginalno and logicko kolo je navodno izmislio Keyser Söze! https://en.wikipedia.org/wiki/Konrad_Zuse
Zakasnio si, već sam našao da je logičko i kolo prvi patentirao Nikola Tesla. Kajzer Sose je samo dežurni krivac.
Tesla je prvi napravio elektromehanicko I kolo, ali ne pishe da je on izmislio... Mada zvuci lepo da jeste
Ako je patentirao onda je valjda i izmislio. Kakve veze ima da li je poluprovodničko ili elektromehaničko, prvo i kolo je napravio naš čovek. Prvi analogni računar je radio na vodu i opet ga je napravio naš čovek.