Preston Brown

First Name:Preston
Last Name:Brown
Last Change:2017-07-30
Number of Files:7 (233rd most prolific)
Number of Downloads:32,291 (346th most downloaded)

Casino Demo   (details) 48 ENG   9KB/9KB
ScreenshotAdvertisement for HP 48SX Casino Card.
By Preston Brown. 1997/08/21

CMOS FET Equations   (details) 48 ENG   3KB/2KB
This is a set of equations for CMOS field effect transistors. The constants included give a good approximation to common 1.6u processes.
By Preston Brown. 1997/08/21

CPRAC   (details) 48 ENG   3KB/1KB
Blackjack card counting practice program. Requires the CASINO 48 application card.
By Preston Brown. 2008/08/14

DRAW48   (details) 48 ENG   55KB
Allows you to create graphics for your 48S on an MS-DOS computer. DRAW48 writes a 48S program which can be sent to the calculator and run to create the graphics.
By Preston Brown. 2017/07/30

Low Bat Program   (details) 48 ENG   1KB/1KB
Reports the status of the ALERT annunciator. The ALERT annunciator is activated by alarms or low battery.
By Preston Brown. 2008/08/11

Serial Cable Pinouts   (details) 48 ENG   3KB
Explains the pinouts for serial cables for connecting the HP to PCs, Macs, or Minitel machines.
By Johan Thornton and Preston Brown and others. 1997/09/21

Speed up the HP 48?   (details) 48 ENG   1KB
Gives some basic information about the clock speed of the HP 48 and how it is set.
By Preston Brown. 1997/12/12

Part of the HP Calculator Archive,
Copyright 1997-2021 Eric Rechlin.