In early 1990s, while most parts of Cambodia still depended on ICOM to connect each other, some other parts of the world now would depend on GSM technology. GSM is a system for global mobile phones to communicate each other.
Besides b/w PC, my father, an old geek, owned at the early time in 1996, I think it was around 2002 he had the first Nokia smart phone that even cost him a thousand dollars, the Nokia 9210. It was basically for an email use for him. Another Nokia lover in my family was my sister, she changed her Nokia almost every middle of the month. It was so lucky for her to have so much time and try on new games such as Snake Puzzle on her new phones.