![](https://cdn.gsmarena.com/imgroot/news/19/06/counterclockwise-things-that-rotate/-184x111/gsmarena_0000.jpg)
Phones have had rotating controls since the early days. In the 19th century, if you wanted to call someone, you had to crank a handle (it generated the electric pulse that rung the bell of the other phone). In the 20th century, there was the rotary dial. While cell phones never had a rotary dial, the likes of the Sony CMD J7 had a Jog Dial - a wheel on the side of the phone that can be used to navigate menus. BlackBerry started with trackwheels too, but the iconic Pearl series introduced the trackball. The T-Mobile G1 had a trackball too. Of course, later models swapped out the...
Tidak ada komentar:
Posting Komentar