- Bizarre 64
Bizarre 64 [http://atchison.net/bizarre64bbs.htm] was a
bulletin board systemwritten for the Commodore 64by Bill Atchisoncirca 1985 in order to fill the need for a faster and more professional BBS system than was currently available at the time for the Commodore-64 computer system.
The problem faced with the Commodore-64 was that the disk drives were being run as serial devices transmitting data roughly at 1200 or 2400 bit/s which is about the same speed of the average modem at the time. Visitors to a typical Commodore-64 BBS would see the data stream visibly stagger and wait online for many seconds as the BBS switched from modem output to disk access for more data. Therefore, the challenge of the Bizarre-64 BBS was to eliminate all of the waiting and make the data transfer appear transparent to the visitor and look as smooth and fast as competitive products running on more expensive hardware.
How Bizarre-64 resolved this problem is that the
disk drivesand modemcould actually transmit data simultaneously so by caching a partial index of the BBS in memory certain information could be flushed to the modem output buffer immediately while the computer was waiting on the disk to transfer the data. Since the disk drives had their own on-board computers commands could be sent to locate and transfer records asynchronously without the program needing to wait for events from the disk to complete. Bizarre-64 leveraged this capability by always sending requests in advance to the disk drive and then would output a stream of data to the modem while waiting on the next record from the disk drive. This technique made Bizarre-64 very responsive to the visitor so that actions such as NEXT or PREVIOUS message seemed to happen instantly upon pushing the letter.
Additionally, Bizarre-64 could support rapid login and membership search for up to 4,000 members via a hash index table stored in ghost
RAMhidden behind an 8K ROM. This allowed logins and user name searches to be extremely fast in 1-2 seconds as using the hash tablelocated the member name with a mathematical formula thus requiring only a couple of disk accesses to identify the exact member record. This was a massive improvement over other systems that searched linearly through a member database that could take almost a minute or more to locate a record.
* [http://atchison.net/bizarre64bbs.htm Bizarre-64 BBS Software Author's page]
* [http://www.zimmers.net/bbs/index.html Carrier Detected's List of Commodore-64 BBS Software]
* [http://bbslist.textfiles.com/BBSLISTS/kcbbs.txt Refers to the Magick Latn running Bizarre-64]
Unfortunately most of the old BBS lists that used to contain a lot of references to this and other Commodore-64 software and the sites that ran them appear to be rapidly fading off the internet as we lose a valuable piece of BBS history.
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См. также в других словарях:
bizarre — [ bizar ] adj. • bigearre XVIe; it. bizzaro « capricieux », de l esp. bizarro « brave » 1 ♦ Qui s écarte de l ordre commun, qui est inhabituel, qu on explique mal. ⇒ curieux, drôle, étonnant, étrange, inattendu, insolite, saugrenu, singulier; fam … Encyclopédie Universelle
Bizarre — Saltar a navegación, búsqueda Bizarre Archivo:Bizarre band.jpg Bizarre, 2006 Información personal Origen Blanes … Wikipedia Español
Bizarre — Бизарр … Википедия
Bizarre — steht für: Bizarre Festival, Musikfestival Bizarre Records, US amerikanisches Plattenlabel Bizarre (Fetischmagazin), englisches Fetischmagazin Bizarre (Zeitschrift), eine von Éric Losfeld 1953 begründete französische Zeitschrift Bizarre Städte,… … Deutsch Wikipedia
Bizarre — may refer to: *Bizarre (rapper), solo rapper as well as member of the group D12 * Bizarre (TV series), Canadian sketch comedy television series starring John Byner * Bizarre , fetish magazine published by John Willie * Bizarre (magazine), sister… … Wikipedia
bizarre — BIZARRE. adj. des 2 g. Fantasque, extravagant, capricieux. Un esprit bizarre. Avoir l humeur bizarre. Sentimens bizarres. Opinions bizarres. [b]f♛/b] Il signifie aussi, Extraordinaire, hors de l usage commun. Couleur bizarre, Poil bizarre.… … Dictionnaire de l'Académie Française 1798
bizarre — BIZARRE, Bigearre. adj. de tout genre, Fantasque, extravagant, capricieux. Un esprit bizarre. un homme bigearre. il a l humeur bizarre. sentiments, opinions bizarres. Il signifie aussi fig. Extraordinaire & hors de l usage commun. Couleur bizarre … Dictionnaire de l'Académie française
Bizarre — Bi*zarre , a. [F. bizarre odd, fr. Sp. bizarro gallant, brave, liberal, prob. of Basque origin; cf. Basque bizarra beard, whence the meaning manly, brave.] Odd in manner or appearance; fantastic; whimsical; extravagant; grotesque. C. Kingsley.… … The Collaborative International Dictionary of English
bizarre — (adj.) 1640s, from Fr. bizarre odd, fantastic (16c.), originally handsome, brave, perhaps from Basque bizar a beard (the notion being of bearded Spanish soldiers making a strange impression on the French); alternative etymology traces it to It.… … Etymology dictionary
bizarre — Bizarre, Ta nature s est trouvée en moy fantastique et bizarre. Pasquier … Thresor de la langue françoyse