The HP 48 is a series of graphing calculators designed and produced by Hewlett-Packard from 1990 until 2003. [1] The series includes the HP 48S, HP 48SX, HP 48G, HP 48GX, and HP 48G+, the G models being expanded and improved versions of the S models.

2025年2月17日 · The largest, best source on the Internet for software for and information about Hewlett Packard's HP Prime, HP 50g, HP 49G, HP 48 series, HP 38G, and HP 28 series graphic calculators.

2022年1月1日 · The HP48 series was the top of the HP range from 1990 until the introduction of the HP49 in 1999. The range consists of the HP48S, HP48SX, HP48G, HP48G+, HP48GX and HP48GII. The GII model is still available and all models are well supported by HPCC members as well as the internet community as a whole (see the links section below).

2023年1月27日 · The HP 48 is a series of graphing calculators designed and produced by Hewlett-Packard from 1990 until 2003. The series includes the HP 48S, HP 48SX, HP 48G, HP 48GX, and HP 48G+, the G models being expanded and improved versions of the S models.

You may even consider the new HP48 ($90) or Hp49 ($140) calculators. While they are not of the same quality as the older 48G series, they have improved greatly in the last 6 months and have lots of speed and math features not available to the older 48Gx series unless you buy expansion cards ($$$$ option).

1993年推出的hp-48gx ，可以说是当年最强大的计算器，震撼着整个工程领域，它拥有着128k的内存和两个扩展卡接口，为程序开发提供了良好的环境，因此不少人为hp-48gx编写了大量的程序，在今天的二手市场的价格也是相当高的。

I'm compiling serial number and ROM information of HP48 calculators with the intent of determining their relationship. The table is below, and the relationship is pretty apparent. I've also parsed the information from the serial number (country, week, year) to make it slightly more human-readable.

HP-48S/SX 具有 64 × 131 像素的大显示屏。 它通常在顶部显示当前目录，然后是堆栈的四行。 底部是一排标签，用于顶排软键。 大屏幕使绘图以及方程式编写器和矩阵编写器等功能更加有用。 显示了带有与绘图相关的软键标签的绘图。 尽管近 20 年来代数计算器的制造商一直声称他们的计算器可以像写在纸上一样输入表达式，但这从来都不是真的。 早期的模型只是模糊的“代数”，但到了 90 年代，大多数“代数”计算器至少可以诚实地声称，用户可以按照将表达式输入到编译器 …

This document gives HP 48 hardware information required to connect serial devices to the wired (serial) I/O port or to communicate with the HP 48 via the 2-way infrared (IR) I/O port. By Hewlett-Packard .

The 50G has idiot-proof 21st century I/O capabilities (SD card and USB cable), a build quality and keyboard that has won praise after the extensive disappointment with the 49G+, a dazzling scope of functions and features, lots of internal memory, greater speed than the beloved 48 series classics, and, as someone has pointed out, impressive ...