Al's Geek Lab Substack

A programmable oscillator that makes going slower... faster

Now you can get a clock crystal that you can set at any speed!

Sep 20 • 

Als Geek Lab

18:33

Microsoft’s 6502 BASIC Goes Open Source

Microsoft has just open-sourced its 6502 BASIC Version 1.1. This is the same BASIC that powered early machines like the Apple II, Commodore PET, VIC-20…

Sep 13 • 

Als Geek Lab

1

15:05

August 2025

Full Fat DooM, on a real IBM XT?!

(Courtesy of the Inboard from Intel!)

Aug 29 • 

Als Geek Lab

18:33

The XT to 386 to 486 Challenge! (Part 1)

When squeezing a 386 out of an XT just isn't enough!

Aug 16 • 

Als Geek Lab

17:01

June 2025

Sad Mac Madness - Can I revive this Mac SE?

When Jobs was at his Jobsiest...

Jun 22 • 

Als Geek Lab

24:28

Upgrading an Intel Inboard/386 with ParrotyRAM – 4 MB XMS & EMS for Real Multitasking!

There's a Parroty in my port and you're all welcome

Jun 15 • 

Als Geek Lab

30:15

What was programming in QuickBasic like?

Watch now | Was it as fun as it was in my rose-tinted memories?

Jun 7 • 

Als Geek Lab

1

1

30:59

Multitasking network apps in DOS with multiplexing

It shouldn't be possible! Telnet and web browsing in DOS at the same time

Jun 1 • 

Als Geek Lab

14:06

May 2025

IBM and the Nazis

IBM's role in concentration camps, social profiling and way more

May 19 • 

Als Geek Lab

1

25:13

The Amazing Intel Inboard/386 - for PC & XTs

This expansion card is wild. If you've never heard of it before, it's a card with a 386 CPU and 1MB 32-bit RAM on it that plugs in to your original PC…

May 19 • 

Als Geek Lab

1:00:41

August 2024

IBM Said we couldn't do it, so we did: IBM PC XT/286 CPU upgrade!

Lock in is something we all hate!

Aug 3, 2024 • 

Als Geek Lab

15:35

June 2024

Free Nesuss-like security vulnerability scanning with OpenVAS (tutorial)

Scan your mommas network for nasties like a pro...

Jun 15, 2024 • 

Als Geek Lab

13:50