Hewlett Packard and Texas Instruments Calculators

Old HP and TI Calculators

This site is dedicated to the old Hewlett Packard and Texas Instruments calculators of days gone by. I've tried to put pictures online of the HP and TI's that I have. I've also posted articles dealing with HP and TI's including some programs you might like, such as Time Value of Money (TVM) and Games! Got something you'd like to see on this web page? Email me! How do I pick what to put on here?

Do you collect calculators? Consider buying this book!
New! Free US shipping for mentioning Gene!....... Calculator Book

Newest Items?
8/8/97 - Still more games! HP-67/97 Games -- Tic-Tac-Toe, Golf, One-armed Bandit (Slot machine), Pegged!, HP-55 Games (finally!) -- Nimb, Lunar Lander, HP-65 Games -- Ping Pong!, Viking Lander, HP-25 Game -- Nimb. Also, HP-67/97 Algebraic Operating System program -- Give your HP-67/97 an equals key!

8/5/97 - HP-25 Games -- Golf, Slot Machine, HP-67/97 Game - Blackjack, HP-25 Hyperbolic functions.
8/4/97 - HP-65 Games! -- Lunar Lander, Tic-Tac-Toe, Bagels, Chuck-a-luck, Eleven-Thirty, Logic (Hi-Low)
8/4/97 - HP-25 Game of Battleship!, HP-41 Thinkjet Barcode program #2

8/1/97 - TI-59 Treasure Island Game, HP-67/97 Jive Turkey Game, Three HP-25 Games (Trapped, Shooting Gallery, and Blackjack), HP-19C/29C Craps Game, HP-19C/29C Multiple Linear Regression, HP-41 Infrared Printer Module function article, HP-41 XROM Number article, HP-41 Bar Code Printing Programs

Newest Item: -> Print your own HP-41 Bar Code! Five HP-41 Bar Code printing Programs!

Note: HP-41 and Wand Owners! Web Bar Code Test!!! Bar Code test!

Bar code update...Lance Locklear writes: "I downloaded & printed the hi rollers file on a laserjet 5L. Most lines scanned in first time, a couple required multiple takes, but I was able to successfully scan in the entire program in under 2 minutes. Great job, I hope you continue this with your other 41 files."

TI Calculator Pictures
TI Language Tutor TI-2550-III SR-10 SR-11 SR-16 SR-16II SR-50 SR-50A SR-51 SR-51A SR-52 SR-56
TI-55 TI-57 (Actually the Radio Shack Version) TI-58C TI-59 TI Money Manager TI MBA TI Programmer

HP Calculator Pictures
HP-19C HP-21 HP-22 HP-25C HP-27 HP-29C HP-31E HP-32E HP-33C HP-34C HP-37E HP-38C
HP-35 HP-41C HP-45 HP-55 HP-65 HP-67 HP-80

Why did people buy Programmable Calculators? and was HP or TI the best? TI or HP?

TEXAS INSTRUMENTS STUFF

How do I key those strange TI-58/59 keycodes into LRN mode? Keycodes
An extra 4 memories for the TI-58C? How?.... TI-58C extra memories/program steps
Having problems with your TI-58 or TI-59? Read this ..... TI 58/59 Malfunction page
TI-58/59 Hierarchy Registers..What are they? ..... HIR Registers
TI-58/59 Solid State Software Plug-in ROM Modules ..... Plug-in ROMS
You mean I can turn my TI-57 into a TI-57C? ..... TI-57 with Constant Memory
Can't figure out what adaptor goes with that TI calculator? ..... TI Adaptors
Link to lots of info about old TI calculators. Just be sure to come back..... TI History
Here's an article describing a "fast mode" on the TI-58/59 ..... TI 58/59 Fast Mode

TI Calculator Programs:
New! TI 59 Treasure Island Game | TI 59 3-D Tic/Tac/Toe Game | TI 58/59 Make up your mind game
TI 59 13 Digit Register Printer | TI 59 Fast Mode Memory Test Program | TI 58/59 Plot 60 in Fast Mode
TI 58/59 Teach Arithmetic Game | SR-52 Teach Arithmetic Game
TI 58/59 Jive Turkey Game | SR-52 Jive Turkey Game
SR-56 Annuities - I% Known | SR-56 Annuities - I% Unknown
SR-56 Sinking Fund - I% Known | SR-56 Sinking Fund - I% Unknown
SR-56 Lunar Lander Game!

Coming Soon! TI-59 Backgammon and other games!

HEWLETT PACKARD STUFF

New! Why play calculator games?.... Why?
What is HP-41 Synthetic Programming?.... Synthetic Programming
New! What do HP-41 XROM Numbers mean?...... HP-41 XROM numbers
New! Own a PPC ROM and a manual? Here's some manual corrections... Corrections
New! Here are the functions in the HP-41 Infrared Printer ROM..... HP-41 IR Module
What does that HP-41 Printer MAN/TRACE/NORM Switch do anyway?.... HP-41 Printer Switch
Can't figure out how to use that HP-80 financial calculator? Here's some tips... HP-80 Instructions
Link to lots of old HP-71 and HP-75 software, including LIF to DOS disk conversion software.... HP-71/75

HP Calculator Programs: Note: I think the games are all good! Try one!

HP-19C/29C/34C/11C/15C TVM | HP-19C/29C Bagels Game | HP-19C/29C Teach Arithmetic
HP-19C/29C Blackjack Game! New! HP-19C/29C Craps Game! | New! HP-19C/29C Multiple L.R.

HP-34C Curve Fits! | New! HP-25 Hyperbolic functions | HP-38E/C Trig Functions!

New! HP-55 Nimb | New! HP-55 Lunar Lander!

New! HP-67/97 Pegged Game | New! HP-67/97 Golf! | New! HP-67/97 One-armed Bandit
New! HP-67/97 Tic-tac-toe Game | New! HP-67/97 Algebraic Operating System
New! HP-67/97 Jive Turkey Game | HP-67/97 Pinball Wizard | HP-67/97 Star Trek
New! HP-67/97 Blackjack Game! | HP-67/97 Game of Bagels/Mastermind! | HP-67/97 Chess Game

HP-41/42 Yahtzee Game | HP-41/42 High Rollers Game
HP-41/42 Game of Skunk! | New! HP-41/42 Wizard of Pinball Game
New! HP-41/42 Calendar Printer | New! HP-41/42 Catch the Goufers Game!
HP-41/42 Programmable Star Trek Game! | HP-41/42 Swap Game
HP-41/42 Adventure Game | New! HP-41/42 Othello/Reversi Game
HP-41/42 String Functions | New! HP-41/42 Computer Simulator!

HP-28S Speed-up Program | HP-28/48 Hangman Game! | HP-42S Speed-up Program

HP-41 Key Assignment Program using only X-functions and Timer Functions! (Heavy stuff here)

Coming Soon! HP-48 Yahtzee, TI-59 Calendar Printing programs, HP-41/42 Mini-Chess

Now, my shameless appeal to find some old equipment for myself. ;-)
....I am looking for old Hewlett Packard calculators in working condition. I'm not interested in the HP-28, HP-48, HP-12C's.

I'm also looking for HP-41C calculators and Peripherals I'm looking for old HP-41C's with serial numbers of 1938AXXXX or smaller. The serial number can be found on the back side of the calculator. Peripherals I'm searching for include HP-IL printers, disk drives, and RAM disks.

I'm also seeking calculators by other manufacturers: Seek calculators made by Sinclair, Commodore etc. If it's obscure and still works, I might be interested.

Got something you might sell or trade? Drop me an email and tell me (1) what you have, (2) what kind of condition it's in, and (3) what you would want for it.

New! Lots of Calculator Links

Email me at: Gene!

Visitors since 5/10/97