DECUSER

This blog is currently under construction.

This Blog ranges over diverse technical topics such as Retrocomputing, Unix, and Programming Over the coming weeks, I will be moving my blog posts over from blogspot to here.

This note covers building a working v7 instance from tape files that will run in the OpenSImH emulator.

This note covers building a working v7 instance from tape files that will run in the OpenSImH emulator.

This week, I spent some time writing code for my m100.

A list of known Tandy TRS-80 Model 100 books and articles, with links.

In 1984, Dallas Baptist College required every freshman to buy a Tandy TRS-80 Model 100 computer as part of a computer literacy initiative.

This note details the process of building a working v6 instance from a copy of the original tape distribution.

A video walking the user through the process of programming the PAL-1 using the keypad.

After looking 'round for a rationally designed power wheel, I gave up... well, not really.

A note to capture what I learned the hard way about sampling frequencies.

This note documents my exploration of using a $9.99 logic analyzer to watch my PAL-1 go through some address bus gyrations.

Note describing a minimalist example of how to input and run a program on the PAL-1.

Note describing a minimalist example of how to input via serial and run a program on the PAL-1.

This post describes how to get your Mac talking to your PAL-1 in order to send MOS papertape format ascii files via minicom to your PAL-1 and run them.

This is a note on how to get and get started using a PAL-1.

This is my curated list of resources.

A post about my very own working PAL-1.

This is revision 1.4 of my updated and expanded edition of John Lions’ UNIX Operating System Source Code Level Six.

Superseded: A later and more complete version is available as Updated and expanded Lions V6 source, revision 1.4.

It covers building a working v7 instance from tape files that will run on the SimH emulator.

A short note documenting the process of getting ratfor working on a v7 instance.

A short note about installing and using the DZ-11 Terminal Multiplexor in v7 for access from telnet on a host.

This is a completely reorganized, updated, and edited version of the document.

Revision 1.7 of Installing and Using Research Unix Version 7 in the SimH PDP-11/45 and 11/70 Emulators is out, get it here: research-unix-7-pdp11-45-v1.7.pdf Last Updated December 30, 2021 post added 2022-12-02 09:54:00 -0600

post added 2022-12-02 09:54:00 -0600

This note describes how to create a pdf (and ps, and txt) version of the latest Vim documentation.

This is the first video in the Beginner's Guide to Learning Unix with FreeBSD 2021 series.

Dear Apple, This morning, I had a row in your Apple Technical Support forums that I thought I should preserve.

This video talks about man, manpages, and what they are good for (programming resource). post added 2022-12-02 09:12:00 -0600

This episode walks through how one might begin writing a who command that replicates the system command "who -H" as a systems programming exercise using cc, make, and man.

This episode I add a couple of drives, create a mirror, create some snapshots, rollback a snapshot, selectively restore some files from a snapshot, kill one of the mirror's drives and replace it, and generally have great time with ZFS - most amazing file…

Short video walking the user through creating a ZFS Boot Environment, destroying stuff, and restoring and then through a proper upgrade of the system to a new patch level. post added 2022-12-02 08:57:00 -0600

his tutorial walks the user through setting up a virtual development environment capable of being used to work through Joseph Kong's book, "FreeBSD Device Drivers: A Guide for the Intrepid" in 2020.

A no-nonsense version of the previous tutorial to install FreeBSD 12.1 on VirtualBox 6.1.

This is the second video of the series and is intended to show how to get a minimal X Windows environment running in a VirtualBox instance of FreeBSD 12.1.

This is the third installment of the FreeBSD video series.

Welcome to the Systems Development in FreeBSD (2020) Series.

How to mount a tar file in v7 running in SimH This was difficult to figure out, but perseverance, tuhs, and simh mailing lists helped.

{: width="640" } A note on how to set fonts and colors for xterms for freebsd & macos.

This note explains the super simple approach to forwarding mail on the local system from the root account to a user.

A note about how I I got XDM working on my Thinkpad T430 in 2020.

This is a note about how to kill that mouse craziness with vim.

How to use the macos terminal as a remote tektronics display device for a terminal graphics process running on another unix system.

A non-ui method for monitoring battery life and sleep on FreeBSD.

Note describing how to restore the grub bootloader after it is catastrophically removed.

A note describing how to install and set up the tor browser on freebsd 11.2 created 20180727.1036 Note: Tricky business, this tor on freebsd, but when it's all said and done, it really works fine. get the package sudo pkg install tor allow system to assign

A note with fixes for issues arising with the use of linux mint.

A note describing the process of installing Centos 5.11 with the 2.6.17.8 kernel in order to be able to work along with Kroah-Hartman's 2007 book, Linux Kernel in a Nutshell, in the modern era. created 20180303.2024 Overview The purpose of installing this…

A note describing the process of installing Centos 5.11 with 2.6.18-kernel in order to be able to work along with Kroah-Hartman's 2007 book, Linux Kernel in a Nutshell, in the modern era. created 20180303.2024 Overview The purpose of installing this system