New G2 HP Prime

[Tim Wessman]

Basically, G1 has an OS that takes much longer to boot, we (the prime application) do not have any control until it is fully booted. There are keyboard drivers, memory drivers, flash drivers, etc that all need initialization time in the OS. Then it begins loading the full application into RAM. This takes a while and memory access is slow.

The logo is placed immediately during initialization of the screen driver. Then power is turned on to the screen. Then all the other stuff happens and moves along. Only when the loading is totally done does the application "start". At that point the keys the key driver loaded get placed into the application.

This is from a full "boot". Normal power off and on still has the OS doing some things - again there is no control till the OS hands it over. Luckily, that time can be much lower since it doesn't have to load the application from memory.

G2 has a much smaller and simpler OS. The full boot time is much lower then the G1 initialization time. In fact, I think full boot is faster then "sleep wake up" on G1. Sleep wake up is fast to the point that it just waits till everything is good to go, and then turns on the screen.

If you think Prime in any variant is slow, you've never tried to turn on an nSpire.... takes a LOOOOONG time. I think I had one almost 2 minutes on me once. Changing languages actually takes like a minute to "load".