Color64
Encyclopedia
Color64 is a computer BBS
Bulletin board system
A Bulletin Board System, or BBS, is a computer system running software that allows users to connect and log in to the system using a terminal program. Once logged in, a user can perform functions such as uploading and downloading software and data, reading news and bulletins, and exchanging...

 system that was very popular for the Commodore 64
Commodore 64
The Commodore 64 is an 8-bit home computer introduced by Commodore International in January 1982.Volume production started in the spring of 1982, with machines being released on to the market in August at a price of US$595...

 during the 1980s. It was written by Greg Pfountz
Greg Pfountz
Greg Pfountz is an American computer programmer who created the Color64 BBS system. Color64 was a popular BBS system for Commodore 64 computers.-External links:*...

. Color64 was advanced for its time. The I/O was all written in machine language. It was also composed in modules, each written in BASIC. Each module would be loaded into memory as a user went from one part of the system to another. For example, the login module was what handled the answering of the phone and the verification of login info. It would then load the main menu module. Going into the message boards would load the message board module. Online games worked the same way.

Because the Commodore 1541
Commodore 1541
The Commodore 1541 , made by Commodore International, was the best-known floppy disk drive for the Commodore 64 home computer. The 1541 was a single-sided 170 kilobyte drive for 5¼" disks...

 and Commodore 1571
Commodore 1571
The Commodore 1571 was Commodore's high-end 5¼" floppy disk drive. With its double-sided drive mechanism, it had the ability to utilize double-sided, double-density floppy disks natively. This was in contrast to its predecessors, the 1541 and 1570, which could fully utilize such disks only if the...

disk drives were slow, most BBSs would use memory expansion module. This would serve as a RAM disk and allow all modules to be loaded quickly.
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