I need to check out which ROM my Apple //e and //c have as per [Wayback/Archive] Single Step in Monitor | Applefritter comment by [Wayback/Archive] jeffmazur | Applefritter:
Archive for the ‘Apple’ Category
Apple II: Single Step in Monitor | Applefritter
Posted by jpluimers on 2026/02/10
Posted in //e, 6502, Apple, Apple ][, History, Power User, Retrocomputing | Tagged: 394 | Leave a Comment »
Bit by Bit – Exploring Low-Level Programming on the Apple IIe | decuser’s blog
Posted by jpluimers on 2026/02/05
At the time of posting [Wayback/Archive] Bit by Bit – Exploring Low-Level Programming on the Apple IIe | decuser’s blog in 20251010, four episodes were up at [Wayback/Archive] Bit by Bit – Exploring low-level programming with an Apple IIe – YouTube which at the time of archiving at the end of October 2025 already got 10 episodes.
Hopefully by now – some 2 months later – the list has grown even further.
Via [Wayback/Archive] Bit by Bit – Exploring Low-Level Programming on the Apple IIe | Applefritter who explains further than the blog post:
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Posted in //e, 6502, 6502 Assembly, Apple, Assembly Language, Development, History, Power User, Retrocomputing, Software Development | Leave a Comment »
Mac traag, waterschade of kapot? Binnen 2-6 uur gerepareerd
Posted by jpluimers on 2026/02/02
[Wayback/Archive] Mac traag, waterschade of kapot? Binnen 2-6 uur gerepareerd
Macleasy BV is een sociaal & duurzaam Mac Reparatie bedrijf uit Utrecht.Jongvolwassenen & MBO-studenten binnen het autisme spectrum repareren op een snelle, vakkundige & duurzame manier Apple MacBooks & iMacs die oud, traag, gecrasht, kapot of waterschade hebben.Door het op een sociale & duurzame manier te laten repareren gaat je Mac 2-7 jaar langer mee, bespaar je tijd, geld, het milieu en creëer je werkgelegenheid.
Via [Wayback/Archive] Dinsdale. – D💉ane ديانا дiане Blijf thuis ⭕️🇺🇦 on Twitter: “@RickvanSoest @RenskeRH Ik heb dit nooit gedaan maar weet sinds kort van een bedrijfje in Utrecht dat oude macs repareert. “.
–jeroen
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Posted in Apple, iMac, Mac, MacBook, Power User | Leave a Comment »
Naming Files and Directories the Right Way – YouTube
Posted by jpluimers on 2026/01/29
I totally agree with the first comment of [Wayback/Archive] Naming Files and Directories the Right Way – YouTube as it holds not just for file management, but for naming anything including software development:
--jeroen
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Posted in *nix, Apple, BSD, Development, Linux, Mac OS X / OS X / MacOS, Power User, Software Development, Windows | Leave a Comment »
How can I tell what wattage my MacBook Pro… – Apple Community
Posted by jpluimers on 2026/01/19
This still works for Apple Silicon based Macs: [Wayback/Archive] How can I tell what wattage my MacBook Pr… – Apple Community
TL;DR:
- Either:
- ⌘-space -> System Information.app
- menu -> About This Mac -> More Info… -> System Report…
Note that “System Report…” starts the “System Information.app” (how cool would naming consistency be…)
- Hardware -> Power
- Browse down to “AC Charger Information”
On my M1 MacBook Pro, the values depend on the charging ports used:
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Posted in Apple, M1 Mac, Mac, Mac OS X / OS X / MacOS, MacBook, MacBook-Pro, Power User | Leave a Comment »
How to Do a UDP Ping in Linux
Posted by jpluimers on 2026/01/07
Often connections are TCP based, but sometimes UDP is all you have to test with, so I was quite surprised that testing that was quite forward. The solutions by [Wayback/Archive] How to Do a UDP Ping in Linux works on any platform where you can have nmap or netcat on installed (which by now is almost all platforms including Windows):
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Posted in *nix, *nix-tools, Apple, BSD, Mac OS X / OS X / MacOS, netcat, nmap, Power User, Windows | Leave a Comment »
MacOS (at least 2023 and younger): solution for (TrueType) fonts added through MacOS built-in Font Book not showing up in Pages or Preview
Posted by jpluimers on 2026/01/05
It took me a few queries to find the correct online solution for this problem: after adding a TrueType (and it’s extension: OpenType) font using the built-in MacOS Font Book, they do not show up in Pages or Preview, not even after validating the fonts in Font Book.
Solutions:
- reboot (found this out myself)
- killing the fontd font daemon from the Activity Monitor
- restart font daemon (found out via the link below)
launchctl kickstart -k gui/`id -u`/com.apple.xtyped
The last one does not work on my Apple Silicon machine, the first two work fine.
For Preview, you have to Force Quit it then start it (so it re-opens all the previous files) to take effect.
I needed this, because I
- very much like the Lucida font family and especially use Lucida Console a lot when filling out forms.
- need the KIX-code font often (it is as barcode font derived from RM4SCC)
- bought [Wayback/Archive] Brush Tip Terrence Font | dafont.com for stationery a long time ago and still use it
- occasionally use [Wayback/Archive] macfonts/Macintosh OS X/mac-icon-standard.ttf at master · JohnDDuncanIII/macfonts · GitHub (which I saved from the 30th Mac anniversary in 2014 – see links below) when documenting Classic Macintosh stuff
- often use the Myriad typeface that Apple supplied with the 30th anniversary of the Macintosh (see links below)
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Posted in Apple, Font, Lucida Console, Mac, Mac OS X / OS X / MacOS, macOS 13 Ventura, macOS 14 Sonoma, Power User | Leave a Comment »
See a List of All Wi-Fi Networks a Mac Has Previously Connected To
Posted by jpluimers on 2025/12/24
[Wayback/Archive] See a List of All Wi-Fi Networks a Mac Has Previously Connected To
n modern versions of Mac OS, like macOS Mojave, Catalina, Sierra, OS X El Capitan, and Yosemite, you can shorten the syntax considerably as so:defaults read /Library/Preferences/SystemConfiguration/com.apple.airport.preferences |grep SSIDStringIn prior versions of Mac OS X, you can opt for the same as the above command, or use the lengthier string below with heavy regex:
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Posted in *nix, *nix-tools, Apple, bash, bash, Development, Mac, Mac OS X / OS X / MacOS, MacBook, Power User, Scripting, Software Development | Leave a Comment »
Adobe Photoshop Source Code – CHM
Posted by jpluimers on 2025/12/19
With the permission of Adobe Systems Inc., the Computer History Museum is pleased to make available, for non-commercial use, the source code to the 1990 version 1.0.1 of Photoshop. All the code is here with the exception of the MacApp applications library that was licensed from Apple. There are 179 files in the zipped folder, comprising about 128,000 lines of mostly uncommented but well-structured code. By line count, about 75% of the code is in Pascal, about 15% is in 68000 assembler language, and the rest is data of various sorts.
https://computerhistory.org/blog/adobe-photoshop-source-code/
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Posted in 68k, Adobe, Apple, Apple Pascal, Classic Macintosh, Development, History, Macintosh SE/30, Object Pascal, Pascal, Power User, Uncategorized | Leave a Comment »
A ton of keyboard conversions via GitHub – trekawek/mac-plus-ps2: Arduino project that allows to connect a PS2 keyboard to Macintosh Plus
Posted by jpluimers on 2025/12/12
This is for earliest compact Apple Macintosh systems predating the introduction ADB (Apple Desktop Bus) on Macintosh SE and Apple Macintosh II (and Apple IIgs which technically is not a Macintosh):
[Wayback/Archive] GitHub – trekawek/mac-plus-ps2: Arduino project that allows to connect a PS2 keyboard to Macintosh Plus
Before continuing to an even more impressive keyboard and mouse interfacing project below (basically many kinds of modern keyboard, mice and gamepads to many retro computers) that I found thanks to doing some more research after finding the above one, lets summarise where the above one is still useful for:
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The Wiert Corner - irregular stream of stuff 
Depends upon which machine and ROM version you have.
The original Apple II monitor does have an S command to single step code in the Monitor. That was removed however to add other features and was not restored until ROM00 of the //c. There are however various 3rd-party ROM images that also have the Step and Trace commands, for example ROMeX and ROM4X, APPLEII.EDM, etc.
There are also hardware boards available to do this as well