System requirements: 50 Plus Prime website and ESP Computer Training Book (The ESP Book) are designed for use specifically with an IBM® compatible personal computer running Windows® 98 or higher, scanner, sound card and speakers or headphones, Internet Explorer 6 or Netscape® 7.
 
ESP large print software is designed for use specifically with an IBM® compatible personal computer running Windows® 2000 or Windows® XP, Pentium® II 350 MHz processor or higher, 128 MB RAM or higher, 16x CD-ROM drive or faster, 800 x 600 16-bit color video card, scanner, sound card and speakers or headphones, Internet Explorer 6 or Netscape® 7. Optional: printer.

IBM is the trademark of International Business Machines Corporation in the United States, other countries, or both.