Virus and spyware definitions are files that act like an encyclopedia of known malicious software, including viruses, spyware, and other potentially unwanted software.
Highly accurate DNA parental testing became available in the 1980s with the development of RFLP. In the 1990s, PCR, developed in 1983, became the standard method for DNA parental testing. A simpler, faster, and more accurate method of testing than RFLP, it has an exclusion rate of 99.99% or higher.
CD's were introduced in 1982 and their popularity grew instantly. They started to become the most popular method for buying music by the late 80's. CDs came out around 1985 but they did not become popular till the late 90s. around the mid 90's cassettes were still prominent but cds were available.