2.x for Windows would run (since they could run in Real Mode), allowing for the authoring of MS Office format-compatible files. The 640×200 resolution CGA compatible 4-shade gray-scale LCD screen has no back light. An electroluminescent technology back light installation is available from a third party since 2004, but keen eyesight is still required to use the small palmtop effectively without resorting to using its 2× and 4× zoom modes. While true CGA displays do not allow for redefinable fonts in text mode and support a hardware code page 437, the HP 95LX supports code page 850 instead. Starting with the HP 100LX the LX series even supports user-switchable text mode ROM fonts for both code page 437 and 850 as well as software-definable RAM fonts (for codepages 437G, 437T, 852, 866 via KEYBEZ). Lotus 1-2-3 internally uses the Lotus International Character Set (LICS), but characters are translated to code page 850 for display and printing purposes. Model variants HP 100LX The HP 100LX Palmtop PC (F1020A for the 1 MB, F1022A for the 2 MB model), also known as project Cougar, is the direct predecessor of the 200LX. It was released in 1993 and available in International English, U.S. English, French, German and Spanish variants with localized keyboard and messages. It is almost the same, including the Hornet CPU and MS-DOS 5.0, but with earlier built-in application versions. HP Palmtop FX The HP Palmtop FX is a variant of the HP 100LX with up to 2 MB flashable memory in 1993. FAT flash disk images could be created and written to drive F: by a special FLASHDSK.EXE utility. According to one source, it was developed for a Korean insurance company. HP 200LX AIA The HP 200LX AIA was a 2 MB double-speed variant of the HP 200LX manufactured for the insurance company American International Assurance (AIA). HP 1000CX The HP 1000CX Palmtop PC (F1203A for the 1 MB in March 1995, F1222A for the 2 MB model in February 1997), also known as project Puma, is an economy version of the 200LX with its Hornet CPU but without any built-in software except the MS-DOS 5.0 operating system in ROM. It was in widespread use among, for example, Coca-Cola warehouse managers, who loaded their own logistics software onto the machine. It has a black clamshell, while the 200LX has a dark green casing. HP OmniGo 700LX The HP OmniGo 700LX