Laser laser devices. The question of just how to assign credit for inventing the laser remains unresolved by historians. On May 16, 1960, Theodore H. Maiman operated the first functioning laser at Hughes Research Laboratories, Malibu, California, ahead of several research teams, including those of Townes, at Columbia University, Arthur Schawlow, at Bell Labs, and Gould, at the TRG (Technical Research Group) company. Maiman's functional laser used a solid-state flashlamp-pumped synthetic ruby crystal to produce red laser light, at 694 nanometers wavelength; however, the device only was capable of pulsed operation, because of its three-level pumping design scheme. Later that year,
Laser 128 the World is Carmen Sandiego?". "inCider" called the computer "amazingly Apple-compatible", estimating 95% compatibility. Programs that successfully ran on the Laser 128 included "F-15 Strike Eagle", Fantavision, WordPerfect, and "The Hitchhiker's Guide to the Galaxy", and the magazine noted that it was easy to install $25 upgraded ROM chips if necessary to improve compatibility. "A+" similarly found that the computer was compatible with 28 of 30 popular Apple II programs, while only about half worked with the Franklin Ace. "BYTE"s tests were less favorable. Most expansion cards worked properly but the magazine found "mixed results" with software compatibility, stating that