Spectaculator is a ZX Spectrum emulator that allows users to run ZX Spectrum software on their computers. The ZX Spectrum, released in 1982, was a popular home computer from the 1980s. Spectaculator is one of the emulators available for this classic computer.
Regarding the "serial key" aspect of your report, I must emphasize that obtaining or sharing serial keys for software can be problematic. Serial keys are often used to activate software licenses, and sharing or using unauthorized keys can be against the terms of service of the software and, in some cases, even illegal.
The term "extra quality" in the context of Spectaculator 80 Serial Key could refer to the desire for a serial key that provides additional features, improved performance, or enhanced functionality. However, without more context, it's challenging to provide a more specific explanation.
Spectaculator 80 is a specific version of the Spectaculator emulator. I couldn't find much information on the exact differences between this version and others, but it appears to be a variant of the emulator designed for specific use cases.