Hewlett Packard 48gx Graphic Calculator

I would like to say THE reference but I know that they are Pro TI & Pro HP users then I don't want to initiate the usual polemic :)

Anyway, this calculator is wonderful, you will find a huge amount of programs on Internet and I am sure that you will find the one suitable for your needs and activity.

This calculator still belongs to the HP glory's day. What I want to say that its construction is rock solid.

There are 3 different models:
- HP-48G : With 32Kb memory and no expansion slot,
- HP-48G+ : With 128Kb memory and no expansion slot,
- HP-48GX : With 128Kb memory and 2 expension slots.

You can find 2 versions of this calculator differentiated by the display. One version shows a blue writting on green display, the other shows a black writting on yellow display.

The 2 expansion slots can receive additional memory expansion cards or applications cards.

The 48 series has a built-in infrared communication system to exchange datas with other calculators or to access a HP82240A/B infrared thermal printer.

This series is the dign successor of the 48S & 48SX that initiated this generation of RPL (its programming language) calculators.

It is not necessary to put a lot of money on this calculator because it is a very common model that can be found used around $120 maximum with a pouch, the owner's manual and the quick reference guide if you want to take the time.