Senin, 24 Oktober 2011
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BBSes were generally text-based, rather than GUI-based, and early BBSes conversed using the simple ASCII character set. However, some home computer manufacturers extended the ASCII character set to take advantage of the advanced color and graphics capabilities of their systems. BBS software authors included these extended character sets in their software, and terminal program authors included the ability to display them when a compatible system was called. Atari's native character set was known as ATASCII, while most Commodore BBSes supported PETSCII. PETSCII was also supported by the nationwide online service Quantum Link.[nb 2]
The use of these custom character sets was generally incompatible between manufacturers. Unless a caller was using terminal emulation software written for, and running on, the same type of system as the BBS, the session would simply fall back to simple ASCII output. For example, a Commodore 64 user calling an Atari BBS would use ASCII rather than the machine's native character set. As time progressed, most terminal programs began using the ANSI standard, but could use their native character set if it was available.
COCONET, a BBS system made by Coconut Computing, Inc., was released in 1988 and only supported a GUI interface (no text interface was available), and worked in EGA/VGA graphics mode, which made it stand out from the text-based BBS systems. COCONET's bitmap and vector graphics and support for multiple type fonts were inspired by the PLATO system, and the graphics capabilities were based on what was available in the Borland BGI graphics library. A number of companies wanted to license the COCONET GUI but Coconut Computing chose not to, and as a result, a competing approach called Remote Imaging Protocol (RIP) emerged and was promoted by Telegrafix in the early to mid 1990s but it never became widespread. A similar technology called NAPLPS was also considered, and although it became the underlying graphics technology behind the Prodigy service, it never gained popularity in the BBS market. There were several GUI-based BBS's on the Apple Macintosh platform, including TeleFinder and FirstClass, but these remained widely used only in the Mac market.
In the UK, the BBC Micro based OBBS software, available from Pace for use with their modems, optionally allowed for colour and graphics using the Teletext based graphics mode available on that platform. Other systems used the Viewdata protocols made popular in the UK by British Telecom's Prestel service, and the on-line magazine Micronet 800 whom were busy giving away modems with their subscriptions.
The most popular form of online graphics was ANSI art, which combined the IBM Extended ASCII character set's blocks and symbols with ANSI escape sequences to allow changing colors on demand, provide cursor control and screen formatting, and even basic musical tones. During the late 1980s and early 1990s, most BBSes used ANSI to make elaborate welcome screens, and colorized menus, and thus, ANSI support was a sought-after feature in terminal client programs. The development of ANSI art became so popular that it spawned an entire BBS "artscene" subculture devoted to it.
Amiga program Skyline BBS was the first in 1987 featuring a script markup language communication protocol called Skypix which was capable to give the user a complete graphical interface, featuring rich graphic content, changeable fonts, mouse-controlled actions, animations and sound.[4]
Today, most BBS software that is still actively supported, such as WorldGroup, Wildcat! BBS and Citadel/UX, is Web-enabled, and the traditional text interface has been replaced (or operates concurrently) with a Web-based user interface. For those more nostalgic for the true BBS experience, one can use NetSerial (Windows) or DOSBox (Windows/*nix) to redirect DOS COM port software to telnet, allowing them to connect to Telnet BBSes using 1980s and 1990s era modem terminal emulation software, like Telix, Terminate, Qmodem and Procomm Plus. Modern 32-bit terminal emulators such as mTelnet and SyncTerm include native telnet support.
The use of these custom character sets was generally incompatible between manufacturers. Unless a caller was using terminal emulation software written for, and running on, the same type of system as the BBS, the session would simply fall back to simple ASCII output. For example, a Commodore 64 user calling an Atari BBS would use ASCII rather than the machine's native character set. As time progressed, most terminal programs began using the ANSI standard, but could use their native character set if it was available.
COCONET, a BBS system made by Coconut Computing, Inc., was released in 1988 and only supported a GUI interface (no text interface was available), and worked in EGA/VGA graphics mode, which made it stand out from the text-based BBS systems. COCONET's bitmap and vector graphics and support for multiple type fonts were inspired by the PLATO system, and the graphics capabilities were based on what was available in the Borland BGI graphics library. A number of companies wanted to license the COCONET GUI but Coconut Computing chose not to, and as a result, a competing approach called Remote Imaging Protocol (RIP) emerged and was promoted by Telegrafix in the early to mid 1990s but it never became widespread. A similar technology called NAPLPS was also considered, and although it became the underlying graphics technology behind the Prodigy service, it never gained popularity in the BBS market. There were several GUI-based BBS's on the Apple Macintosh platform, including TeleFinder and FirstClass, but these remained widely used only in the Mac market.
In the UK, the BBC Micro based OBBS software, available from Pace for use with their modems, optionally allowed for colour and graphics using the Teletext based graphics mode available on that platform. Other systems used the Viewdata protocols made popular in the UK by British Telecom's Prestel service, and the on-line magazine Micronet 800 whom were busy giving away modems with their subscriptions.
The most popular form of online graphics was ANSI art, which combined the IBM Extended ASCII character set's blocks and symbols with ANSI escape sequences to allow changing colors on demand, provide cursor control and screen formatting, and even basic musical tones. During the late 1980s and early 1990s, most BBSes used ANSI to make elaborate welcome screens, and colorized menus, and thus, ANSI support was a sought-after feature in terminal client programs. The development of ANSI art became so popular that it spawned an entire BBS "artscene" subculture devoted to it.
Amiga program Skyline BBS was the first in 1987 featuring a script markup language communication protocol called Skypix which was capable to give the user a complete graphical interface, featuring rich graphic content, changeable fonts, mouse-controlled actions, animations and sound.[4]
Today, most BBS software that is still actively supported, such as WorldGroup, Wildcat! BBS and Citadel/UX, is Web-enabled, and the traditional text interface has been replaced (or operates concurrently) with a Web-based user interface. For those more nostalgic for the true BBS experience, one can use NetSerial (Windows) or DOSBox (Windows/*nix) to redirect DOS COM port software to telnet, allowing them to connect to Telnet BBSes using 1980s and 1990s era modem terminal emulation software, like Telix, Terminate, Qmodem and Procomm Plus. Modern 32-bit terminal emulators such as mTelnet and SyncTerm include native telnet support.
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