Each week Joshua Fruhlinger contributes This is the Modem World, a column dedicated to exploring the culture of consumer technology. My first computer was a Commodore VIC-20. My second was an Apple //e. Every computer after that was an Apple: Mac SE, PowerBook 100, PowerBook G3, PowerBook G4, MacBook Pro and MacBook Air. I also use an iPhone 5. Yeah, I'm predictable. But I'm not an Apple fanboy. I don't really care what kind of computer you use. Do your thing. I just know these products forwards and backwards and they don't get in the way when