Feritové pamäte: Rozdiel medzi revíziami
Z SensorWiki
Riadok 5: | Riadok 5: | ||
* Magnetic Core Memory [http://www.magnet.fsu.edu/education/tutorials/java/magneticcorememory/index.html Interactive Tutorials] | * Magnetic Core Memory [http://www.magnet.fsu.edu/education/tutorials/java/magneticcorememory/index.html Interactive Tutorials] | ||
* [http://www.columbia.edu/acis/history/core.html] | * [http://www.columbia.edu/acis/history/core.html] | ||
− | + | * http://de.wikipedia.org/wiki/Konrad_Zuse | |
− | http://de.wikipedia.org/wiki/Konrad_Zuse | + | * http://www.electronixandmore.com/project/relaycomputertwo/ |
− | http://www.electronixandmore.com/project/relaycomputertwo/ | + | * http://web.cecs.pdx.edu/~harry/Relay/secondPage.html |
− | http://web.cecs.pdx.edu/~harry/Relay/secondPage.html | + | * http://www.electronixandmore.com/project/relaycomputer/index.html |
− | http://www.electronixandmore.com/project/relaycomputer/index.html | + | * http://www.iop.org/EJ/article/0959-5309/46/3/301/prv46i3p303.pdf?request-id=36b329fe-5dfa-4d8e-be7f-560b7a4e623a |
− | http://www.iop.org/EJ/article/0959-5309/46/3/301/prv46i3p303.pdf?request-id=36b329fe-5dfa-4d8e-be7f-560b7a4e623a | + | * http://www.freepatentsonline.com/3784879.html |
− | http://www.freepatentsonline.com/3784879.html | + | * http://www.electronixandmore.com/project/relaycomputer/index.html |
− | http://www.electronixandmore.com/project/relaycomputer/index.html | + | * http://ed-thelen.org/comp-hist/Byte/76jul.html |
− | http://ed-thelen.org/comp-hist/Byte/76jul.html | + | * http://vt100.net/docs/misc/core/ |
− | http://vt100.net/docs/misc/core/ | + | * http://en.wikipedia.org/wiki/List_of_books_on_the_history_of_computing |
− | http://en.wikipedia.org/wiki/List_of_books_on_the_history_of_computing | + | * http://books.google.com/books?id=x1YESXanrgQC&pg=PA51&lpg=PA51&dq=core+memories+production&source=web&ots=ZG_zk94mS6&sig=LtFwwChT5yyeL2Q9bPfJOgRrmVE&hl=en&sa=X&oi=book_result&resnum=7&ct=result#PPA49,M1 |
− | http://books.google.com/books?id=x1YESXanrgQC&pg=PA51&lpg=PA51&dq=core+memories+production&source=web&ots=ZG_zk94mS6&sig=LtFwwChT5yyeL2Q9bPfJOgRrmVE&hl=en&sa=X&oi=book_result&resnum=7&ct=result#PPA49,M1 | + | * http://ed-thelen.org/comp-hist/TheCompMusRep/TCMR-V13.html |
− | http://ed-thelen.org/comp-hist/TheCompMusRep/TCMR-V13.html | + | * http://www.cs.ubc.ca/~hilpert/e/coremem/index.html |
− | http://www.cs.ubc.ca/~hilpert/e/coremem/index.html | ||
Prvý počítač, ktorý používal feritové pamäte (core memory) bol počítač Whirlwind na MIT. Jendým z hlavných objaviteľov tejto | Prvý počítač, ktorý používal feritové pamäte (core memory) bol počítač Whirlwind na MIT. Jendým z hlavných objaviteľov tejto | ||
Riadok 24: | Riadok 23: | ||
time is approximately 25 us) a teda celkové zrýchlenie počítača. | time is approximately 25 us) a teda celkové zrýchlenie počítača. | ||
− | + | Viete ako sa to vyrábalo? | |
− | + | Robili to napr. v IBM ženy ručne pod stereomikroskopmi (Edwin D. Reilly: Milestones in Computer Science and Information Technology). | |
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− | Robili to napr. v IBM | ||
Takto: | Takto: | ||
− | http://vt100.net/docs/misc/core/matrix.jpg | + | * http://vt100.net/docs/misc/core/matrix.jpg |
− | http://vt100.net/docs/misc/core/threading.jpg | + | * http://vt100.net/docs/misc/core/threading.jpg |
− | http://vt100.net/docs/misc/core/testing.jpg | + | * http://vt100.net/docs/misc/core/testing.jpg |
Vyroba vraj vysla 1 USD / 1 bit. Dnes stoji 1USD / 1MB. | Vyroba vraj vysla 1 USD / 1 bit. Dnes stoji 1USD / 1MB. | ||
− | Jadierka samotne vyrabali najprv podomacky na upravenom lise na aspirin, | + | Jadierka samotne vyrabali najprv podomacky na upravenom lise na aspirin, potom sa vyrabali takto: |
− | potom sa vyrabali takto: | ||
http://ed-thelen.org/comp-hist/TheCompMusRep/TCMR-V07.html#Core | http://ed-thelen.org/comp-hist/TheCompMusRep/TCMR-V07.html#Core | ||
Riadok 57: | Riadok 53: | ||
http://www.bitsavers.org/pdf/dec/pdp6/DEC-06-H1BA_164core_Dec67.pdf | http://www.bitsavers.org/pdf/dec/pdp6/DEC-06-H1BA_164core_Dec67.pdf | ||
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Riadok 99: | Riadok 90: | ||
− | '''Fun:''' | + | '''Fun:''' |
− | [http://blog.makezine.com/wholedoor.jpg foto]. | + | |
+ | * Dvere inšpirované týmto typom pamätí [http://www.blog.beachpackagingdesign.com/2007/12/magnetic-core-m.html článok], [http://blog.makezine.com/wholedoor.jpg foto]. | ||
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+ | '''Citát na záver:''' | ||
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+ | ''... forty thousand bit capacity would be sufficient, provided there was a | ||
+ | sufficiently large serial mechanical memory to back it, i.e., tape, drums | ||
+ | and later discs...'' | ||
+ | (Von Neumann) |
Verzia zo dňa a času 22:27, 14. október 2008
Linky
- Magnetic_core_memory from Wikipedia
- http://muzej.kiberpipa.org/en/?page_id=109
- Magnetic Core Memory Interactive Tutorials
- [1]
- http://de.wikipedia.org/wiki/Konrad_Zuse
- http://www.electronixandmore.com/project/relaycomputertwo/
- http://web.cecs.pdx.edu/~harry/Relay/secondPage.html
- http://www.electronixandmore.com/project/relaycomputer/index.html
- http://www.iop.org/EJ/article/0959-5309/46/3/301/prv46i3p303.pdf?request-id=36b329fe-5dfa-4d8e-be7f-560b7a4e623a
- http://www.freepatentsonline.com/3784879.html
- http://www.electronixandmore.com/project/relaycomputer/index.html
- http://ed-thelen.org/comp-hist/Byte/76jul.html
- http://vt100.net/docs/misc/core/
- http://en.wikipedia.org/wiki/List_of_books_on_the_history_of_computing
- http://books.google.com/books?id=x1YESXanrgQC&pg=PA51&lpg=PA51&dq=core+memories+production&source=web&ots=ZG_zk94mS6&sig=LtFwwChT5yyeL2Q9bPfJOgRrmVE&hl=en&sa=X&oi=book_result&resnum=7&ct=result#PPA49,M1
- http://ed-thelen.org/comp-hist/TheCompMusRep/TCMR-V13.html
- http://www.cs.ubc.ca/~hilpert/e/coremem/index.html
Prvý počítač, ktorý používal feritové pamäte (core memory) bol počítač Whirlwind na MIT. Jendým z hlavných objaviteľov tejto myšlienky bol Jay Forrester. Do počítača Whirlwind nainštalovali túto pamäť v lete 1953. Mala dve veľké výhody: (1) vyššiu spoľahlivosť a tým aj zníženie času údržby počítača a (2) rýchlejší prístupový čas (core access time is 9 us; tube access time is approximately 25 us) a teda celkové zrýchlenie počítača.
Viete ako sa to vyrábalo? Robili to napr. v IBM ženy ručne pod stereomikroskopmi (Edwin D. Reilly: Milestones in Computer Science and Information Technology).
Takto:
- http://vt100.net/docs/misc/core/matrix.jpg
- http://vt100.net/docs/misc/core/threading.jpg
- http://vt100.net/docs/misc/core/testing.jpg
Vyroba vraj vysla 1 USD / 1 bit. Dnes stoji 1USD / 1MB.
Jadierka samotne vyrabali najprv podomacky na upravenom lise na aspirin, potom sa vyrabali takto: http://ed-thelen.org/comp-hist/TheCompMusRep/TCMR-V07.html#Core
Zaujimave je, ze ferity s pravouhlou hystereznou sluckou objavili Nemci cez druhu svetovu vojnu. Vzorky materialu sa dostali do USA a tam niekoho napadlo, ze by sa to dalo pouzit v pocitacoch (A History of Modern Computing By Paul E. Ceruzzi).
Prve pocitace, kde sa pouzili boli znamy Eniac a Whirlwind. Potom sa este chvilu pouzivali ako "cache" pre diernostitkove pamate :)
Zopar perliciek na zaver:
Stare obrazky http://ed-thelen.org/comp-hist/TheCompMusRep/TCMR-V13-P13.jpg
137 strankovy manual k rozsirujucemu modulu feritovej pamate k pocitacu PDP-6: http://www.bitsavers.org/pdf/dec/pdp6/DEC-06-H1BA_164core_Dec67.pdf
Vytiahnuté z pivnice
(kliknutím sa obr. zväčší)
Typ 1 (64 bit)
Tento typ je na doske PS s rozmermi 250 x 125 mm. Doska obsahuje 4 x 16 elementov. Priemer jadierka 10 mm.
Typ 2 (256 bit)
Tento typ je na doske s rozmermi 96 x 96 mm. Doska obsahuje 16 x 16 elementov. Priemer jadierka 2,5 mm.
Typ 3 (4 x 4096 bit)
Tento typ je na doske s rozmermi 165 x 180 mm. Na nej sú štyri poschodia 149 x 149 mm. Každé poschodie obsahuje 4 sektory s 32 x 32 elementov. Priemer jadierka 1 mm.
Typ 4 (16 kbit)
Tento typ je na doske s rozmermi 150 x 150 mm. Doska obsahuje obsahuje 4 sektory, každý s 64 x 64 elementmi. Priemer jadierka 0,5 mm.
Fun:
Citát na záver:
... forty thousand bit capacity would be sufficient, provided there was a sufficiently large serial mechanical memory to back it, i.e., tape, drums and later discs... (Von Neumann)