[quote=@Silverink]
[@Byrd Man] In the show there isn't really a set time period. One scene could feature type writers and then complete holographic cities diaramas. Just like comic book time. 
[/quote]

They use typewritters in the police precinct but use smartphones or a flip phones, can't remember which.

Obviously the city council hasn't given them the funding to upgrade to computers. So not necessarily any indication of anything other than cheap politicians and a frugal police department.