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December 08, 2022

#PDAweek
TI - Graphing Calculators

If you went to school in the US during the 1990s, and in to the early 2000s, you probably owned, or at least used, a Texas Instruments 80s Series calculator.

The TI-81 was released in 1990 and immediately gained ground in schools across America. This z80 based hand-held computer was able to do anything a scientific calculator could do. It even included TI Basic, a Basic language which allowed users to write in programs to solve very complex problems. None of this was really new. Programmable calculators had been out for years. But the new trick up this calculator's sleeve, was the ability to draw graphics; specifically graphs.
This was obviously something that was typically reserved for more capable computers at the time.
For less than $150, you could own a hand held computer.
School districts across the country began purchasing class sets. TI made it easy by bundling sets with a teacher's edition of the calculator. The teacher's edition was specially modified so it could connect to an external lcd screen and be projected on the wall. (More on those another day.)

But the TI-81 had one fatal flaw. Something that really kept it from becoming the defacto standard.
Every single person had to manually enter in thier own programs. This meant that if you came up with something amazing, you couldn't share it. Worse, changing the batteries wiped the full memory.

This limitation didn't last long as Texas Imstruments released the TI-85 in 1992.
This new model used the same z80 processor, bit was somehow now many times faster.
This new calculator corrected many issues with the TI-81 including adding a backup/coin-cell battery (they added this to the TI-81 around the same time. But it wasn't there originally.) And the greatest improvement of all...
TI-Link
This new, little cable, meant that programs could be shared between students and teachers. The cable, which was simply a 3-wire cord with a 2.5mm jack on each end, changed the world for students.
Very soon after the release of the calculator, Texas Instruments released the TI-Graph Link cable, a serial cable allowing users to connect the TI-85 to a windows 3.11 or Mac OS computer, copy files and even write programs on the computer.

This new calculator came at a much higher price, preventing it from gaining mass adoption.

To be continued....

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Lunduke Lifetime Discount Ends in 1 Day; Zelda, Larry, SQ, & Keen Walls Available

TL;DR: Lifetime Subscription discount ends in one day. There are currently 4 “Lifetime Walls” with space available for more names (the Oregon Trail Wall is now full).

We’ve been running a massive discount on Lunduke Journal Lifetime Subscriptions for the entire months of June and July. And it has been an absolute blast. There are now 21 (twenty-one!) retro computer walls overflowing with your names.

Pure insanity. Huge thank you to everyone who has supported The Lunduke Journal.

But the discounted price only runs through July 31st… and that moment is just about here.

When the calendar ticks over into August (just a hair over 24 hours from now), the Lunduke Journal Lifetime Subscription price goes back to normal.

  • If the calendar still says it’s July, the Lifetime price is still discounted to $125.

  • If the calendar says August… the price returns to $300.

There are, as of this exact moment, 4 retro game themed “Lifetime Walls” which still have some space for more names (check Lunduke.com for the full list):

  1. Legend of Zelda

  2. Commander Keen 4

  3. Space Quest 4

  4. Leisure Suit Larry

Grab a discounted Lifetime Subscription (scroll down for the details), then email Lunduke (bryan at lunduke.com) with which Wall you’d like to appear on.

 

First come, first served. Once a Wall is full, it’s full. So if there’s a specific Wall you’d like to be on, don’t dilly dally.

How to Grab a Discounted Lifetime Subscription:

There are 3 different ways to pick up a Lunduke Journal Lifetime sub. All of them work great. Choose whichever works best for you!

Remember: These discounted prices go back up to normal ($300) on August 1st.

Get a Lifetime Subscription via Locals:

  1. Go to Lunduke.Locals.com/support.

  2. Select “Give Once“.

  3. Enter “125“ into the amount field.

  4. After checking out, Lunduke will toss you an email once your account is set to full lifetime status. (This usually happens within a few hours.)

Get a Lifetime Subscription via Substack:

  1. Go to Lunduke.Substack.com/subscribe.

  2. Select the “Lifetime Subscription” option.

  3. After checking out, Lunduke will toss you an email once your account is set to full lifetime status. (This usually happens within a few hours.)

If you would also like full, Lifetime access to Lunduke.Locals.com (which is included):

  1. Make a free account on Lunduke.Locals.com.

  2. Email “bryan at lunduke.com” with the email address you use on both Substack and Locals (can be different email addresses).

  3. Lunduke will toss you an email once your account is set to full lifetime status on Locals.

Get a Lifetime Subscription with Bitcoin:

Bonus: Save an extra $10 with the Bitcoin option, as Bitcoin processing has fewer fees associated with it.

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  • Email “bryan at lunduke.com” with the following information: What time you made the transaction, how much was sent (in Bitcoin), and the email address you use (or plan to use) on Locals.com or Substack.com.

-Lunduke

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Oregon Trail, Keen, & Leisure Suit Larry Lifetime Walls

Holy frijoles! There are now 20 (twenty!) Lifetime Subscriber Walls, filled with the names of roughly one bazillion Lunduke Journal supporters.

Just amazing.

Two super quick updates:

  1. The “Desqview/X”, “NeXTSetp”, & “TRS-80 Model 100” Walls are now full! (Check them out on Lunduke.com and at the end of new shows.)

  2. There are 3 new Walls available to put your John Hancock on… and, just for kicks, these ones aren’t from Classic Operating Systems… they’re Classic Games:

    1. Oregon Trail

    2. Commander Keen 4

    3. Leisure Suit Larry

 

I don’t expect space on these Walls to last long. First come first served.

A huge thank you to all of The Lunduke Journal subscribers. Your support is deeply appreciated. You make this possible.

-Lunduke

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TRS-80 Model 100 joins The Lunduke Journal Lifetime Wall party!

Buckle up, Buttercup. Because The Lunduke Journal is about to blow your mind.

  1. The “BeOS” Wall Lifetime Subscriber Wall is now full (see all of them on Lunduke.com)!

  2. We’ve added a new “TRS-80 Model 100” Wall (because we can)! That’s the 19th Lifetime Subscriber Wall! 19!

  3. The discounted Lifetime Lunduke Journal Subscriptions are still available through to the end of this month (July).

Which means there are, as of this exact moment, 4 Walls with space available (see Lunduke.com for the full list of Walls). But these fill up wicked fast.

  1. Emacs (only a few spots left)

  2. Desqview/X (a little less than 2/3rd’s full)

  3. NeXTStep (still plenty of space)

  4. TRS-80 Model 100 (just launched)

 

Nice, right?

Worth noting: The “TRS-80 Model 100” has very limited screen resolution (240 x 64), which means only a small number of names can fit on that wall. If you want on it, I’d let me know right away.

Grab a discounted Lifetime Subscription (if you don’t already have one), then let me know (email “bryan at lunduke.com”) which Wall you’d like to see your name on.

Huge high five to everyone who has already added their name to a Wall. At the current rate, we’ll have over 20 retro computer themed walls, filled with all of your names, by the end of the month.

And, doggone it, that’s amazing.

-Lunduke

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