Serious Commodore 64 business users, however, were drawn to GEOS. Due to its speed, ease of use, and full suite of office applications and utility software, GEOS provided a work environment similar to that of an early Apple Macintosh. Arguably the best office applications appeared on GEOS because it was graphically advanced and not limited by the Commodore 64's screen area of 40-columns. Being a fully-fledged OS, GEOS brought the arrival of many add-on fonts, accessories, and applications. It also supported most Commodore 64 peripherals and models of third-party printers. KoalaPad and Lightpen users could use GEOS too, which greatly increased the amount of clip art available for the platform. GEOS proved very popular because of low price for the necessary hardware (and of course the capability of the OS). This was due in part to the aggressive pricing of the Commodore 64 as a games machine and home computer (With rebates, the C64 was going for as little as US$100 at the time). This was in comparison to a typical PC for US$2000 (which required MS-DOS, and another $99 for Windows 1.0) or the venerable Mac 512K Enhanced also $2000.
A large library of public domain and freeware programs, distributed by online services such as Q-Link and CompuServe, BBSs, and user groups also emerged. Commodore also maintained an archive of public domain software, which it offered for sale on diskette. Despite limited RAM and disk capacity, the Commodore 64 was a popular platform for BBS hosting. Some of the most popular installations included the highly optimized and fast Blue Board program, and the Color64 BBS System, which allowed the use of color PETSCII graphics. Many BBS sysops used high-capacity floppy drives like the SFD-1001 or hard drives such as the Lt. Kernal.
The likely most popular entertainment oriented development suite was the Shoot'Em-Up Construction Kit, affectionately known as SEUCK. SEUCK allowed those non-skilled in programming to create original, professional-looking shooting games. Garry Kitchen's Gamemaker and Arcade Game Construction Kit also allowed non-programmers to create simple games with little effort. Text adventure game tools included The Quill and Graphic Adventure Creator development suites. The Pinball Construction Set gave users a pinball machine to design.
Last but not least, no trip to this country is complete without visiting the famous Blue Lagoon! Apart from the incredible color of the water, this lagoon is one of the most popular of all Iceland vacation spots for its unique surreal surroundings in an ancient lava field on the Reykjanes peninsula.
A second Les Paul model was introduced in 1953. Called the Les Paul Custom, this black guitar with gold-plated hardware was dubbed the "Black Beauty". Various bridge and tailpiece designs were added in 1953 and 1954, including the popular Tune-o-matic bridge. The Goldtop and Custom models continued without significant changes until 1957. In 1957, P-90 pickups were no longer offered on Les Pauls. New humbucker pickups designed by Seth Lover in 1955 (U.S. Patent 2,896,491) debuted on Les Pauls in 1957. This innovation in pickups became the flagship pickup design most associated with Gibson. Many other guitar companies followed suit, outfitting their electrics with versions of the humbucking pickup. 2b1af7f3a8