Interesting talks about Apple Macintosh (now Mac) LC475, 800K floppies, System 7.6/7.7, SCSI, AppleTalk, Serial, Ethernet, hardware upgrades, etc.
New computer time. Well not exactly “new”. I needed to read/write some old….
Archive for the ‘History’ Category
Apple Mac LC475 fun: New computer time. Well not exactly “new”. I needed to read/write some old…
Posted by jpluimers on 2015/01/18
Posted in Apple, History, Mac, Power User | Leave a Comment »
For the 6502, 65c02 and 65816 freaks out there: WDC have made their Programming the 65816 Including the 6502, 65C02 and 65802 available for free again
Posted by jpluimers on 2014/12/24
Cool:
Scot Stevenson Shared publicly
For the 6502, 65c02 and 65816 freaks out there: WDC, who still produce the chips, have made their Programming the 65816 Including the 6502, 65C02 and 65802 available for free again (see link below). It’s the standard reference for the new version of these CPUs. Yes, this will be on the test. Ping +Alan Cox HT to BDD on 6502.org
–jeroen
For the 6502, 65c02 and 65816 freaks out there: WDC, who still produce the….
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Posted in 6502, 6502 Assembly, Assembly Language, Development, History | Leave a Comment »
Danny Thorpe active on various Bitcoin reposiories – via: Best C# Article of October 2014 Nicolas Dorier – NBitcoin : Build Them All…
Posted by jpluimers on 2014/12/01
Via Best C# Article of October 2014 Nicolas Dorier – NBitcoin I learned that dthorpe (yes, that is indeed Danny Thorpe many people know him from the Delphi, C# and Google world) is active as Contributors to NicolasDorier/NBitcoin and on quite some Bitcoin related repositories.
When we met last summer, he was visiting the Bitcoin 2014 conference in Amsterdam. It is really good to see his activity, and I really hope his Opex.io venture (see his LinkedIn profile) will take off, as his ideas are sound.
–jeroen
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Posted in .NET, Bitcoin, C#, Cryptocurrency, Delphi, Development, History, Power User, Software Development, Windows Azure | 3 Comments »
Things you annoyingly just don’t seem to be able to get.. USB 5.25″ floppies…
Posted by jpluimers on 2014/11/28
A while ago, Alan Cox started a nice thread about finding an USB way to read old (like 5.25 inch and 3 inch) floppies.
That resulted in a nice comment thread revealing this info:
- USB to real drives (5.25 inch, 3.25 inch, some 3 inch and some 8 inch):
- Emulating drives to old computers:
Now hopefully some people also post some links to USB PCMCIA memory card readers (:
–jeroen
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Posted in History, Power User | 1 Comment »
Soldering your own 6502 together: Ben Hack creating an Apple I, others doing NINA65, Loom 6502, etc.
Posted by jpluimers on 2014/11/17
Some great links posted last week by mos6502 about soldering your own 6502 based computer.
The videos are of Ben Heck building an Apple I replica. But others did similar builing of NINA65, Loom 6502 and others.
I wish I had soldering skills like that, but I’m more of a programmer (that started on a 6502).
Great viewing those links and videos.
–jeroen
via: Do you remember the Apple I auction results that went through the media….
Here are Ben Heck’s videos: Read the rest of this entry »
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Posted in 6502, Apple, Apple I, History, Power User | Leave a Comment »
Files in your Delphi settings directory; How to relocate the Favourites on your Welcome page
Posted by jpluimers on 2014/10/14
Delphi and 3rd party tools keep some of the settings in your %AppData% directory. Much more convenient than the registry as they are easier to read and modify when needed (also easier to damage <g>). We’ll start with an overview where various versions of Delphi store their configuration files, then show how the Favourites on the Welcome Page are stored, then end with an overview of BDS, Company Names and Product Names. Read the rest of this entry »
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Posted in Delphi, Delphi 2005, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 2010, Delphi 8, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Development, History, Software Development | 4 Comments »
Z80: the “User Manual” was already 300+ pages (:
Posted by jpluimers on 2014/08/14
Today yet another post in the series of BitSavers and History articles.
I already wrote a bit on the Z80 processor in XOR swap/exchange: nowadays an almost extinct means to exchange two distinct variables of the same size.
Popular Z80 powered computers were Amstrad CPC, MSX, Exidy Sorcerer, TRS-80, P2000, Sinclair ZX80, ZX81 and ZX Spectrum, Kaypro, Osborne 1 and the Z-80 SoftCard for Apple II.
The Z80 was widely popular in the 1980s as it could do more than the MOS 6502 of that time:
- The 6502 (see 6502.org) had
– only 56 instructions (the 65C02 variations had a few more), and the XOR was called EOR.
– addressing memory was limited (not all instructions understood both zero-page-absolute and absolute addressing)
– only 3 registers (A, X and Y)- The Z80 (see z80.info) had:
– only 68 instructions and XOR was indeed called XOR
– many more addressing modes than the 6502
– a whopping 9 registersStill the XOR swap algorithm was used a lot back then because of register pressure in the Z80.
Compared to current processors you’d think the Z80 was so small that a few pages of documentation would suffice.
Not so: back then they had a truckload of documentation and it would all be on paper (PDF ame in 1993 and it took quite a while to become popular).
Some of the Z80 documentation has found its way to BitSavers.org:
- The Z80 Data Book (which originates in the 1980s) is already 100+ pages
- And more recently (2004! the Z80 is still used a lot in embedded systems today), the Z80 Family CPU User manual is a whopping 300+ page book
–jeroen
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Posted in Assembly Language, BitSavers.org, Development, History, Software Development | Leave a Comment »
This week: five BASICs for the 6502, to mark the 50th (via: mos6502 – Google+)
Posted by jpluimers on 2014/05/02
Basic@50 would not be complete without This week: five BASICs for the 6502, to mark the 50th… from mos6502 – Google+.
–jeroen
via: Happy 50th birthday BASIC! (via: BASIC at Dartmouth) « The Wiert Corner – irregular stream of stuff.
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On my buying list: The WOZPAK Special Edition (1978 Apple I/II materials digitally enhanced)
Posted by jpluimers on 2014/04/27
At USD 50, this seems like a bargain for Apple I / Apple II lovers.
From the The WOZPAK Special Edition – Overview page:
In 1978, The WOZPAK was a 300 page technical manual produced by Apple Pugetsound Program Library Exchange. The poor resolution of copy machines and fax machines of the era made The WOZPAK an illegible and challenging to use collection of handwritten and typed notes. This collection as a whole was provided to the A.P.P.L.E. by Apple Computer, Inc. co-founder Steve Wozniak and then company president Mike Scott.
…
Thanks to the encouragement of a number of computer industry legends, and the efforts of Apple historians, Brian Wiser and Bill Martens, we now have a completely refurbished and dramatically enhanced version of The WOZPAK. The WOZPAK Special Edition comes complete with the original materials from The WOZPAK and The WOZPAK II as well as some new materials provided by Apple legends from their personal libraries.
–jeroen
via: The WOZPAK Special Edition – Overview.
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Posted in //e, 6502, Apple, Apple Pascal, Apple ][, Assembly Language, Development, History, Pascal, Power User, Software Development | Leave a Comment »
8 different javascript emulators for popular and obscure 6502 machines at mos6502 – Google+
Posted by jpluimers on 2014/04/04
Wow: 8 different javascript emulators for popular and obscure 6502 machines (most of them JavaScript based) at mos6502 – Google+ – This week: 6502 machines running in your browser.
–jeroen
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The Wiert Corner - irregular stream of stuff 