| Name | HP 48G/G+/GX | |
| CPU | Saturn | 4MHz |
| Display | LCD | 131 x 64 |
| RAM | SRAM | 128KB (32KB on 48G) |
| ROM | | 512KB |
| Slots | 2 | GX only: 128KB + 4MB (max) |
| IO mobile | IrDA | 2400 bps |
| IO wired | RS-232C | 9600 bps |
| Entry | 2 | RPN/Textbook |
The 48G/GX series came out to replace the S/SX series with a faster CPU, improved bank switching to help memory structure (now able to address 4 Meg of RAM instead of 288K), and a built in Equation Library. The G/GX series did feel faster, but not a significant improvement; complaints of speed were still common. Still a well built platform with a quality keyboard. Latest ROM issued was R. It is still the yardstick to measure graphics calculators by.
The low end 48G series suffered from insufficient RAM for this type of calculator, but it is/was cheap and readily available. It offered a low cost introduction to a powerful Hp calculator and was a favorite calculator for the engineering students of the time. 32K is enough for an individual to use for his own programs and customization, but too little to take advantage of all the free programs that are available for this calculator and is why Hp introduced the Hp 48 G
?+. This came with 128K ram just like the 48GX which is far more useful for a user of third party programs. The GX versions could take two RAM cards. Card port 1 was limited/restricted to 128K cards, but card port 2 could support 3.5 Meg of RAM in 128K ports (A 4 Meg card is what is available, the additional 2 ports are unavailable unless manual bank switching is employed).
This made the 48GX the most powerful and feature rich calculator available until the introduction of Hp’s newest 49G+.
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Page last modified on March 13, 2005, at 05:13 AM 