25+ Years on Home Computers

I kinda missed it almost – but a visit to eBay brought this up: I got my very first home computer back in the early 1980s – probably around 1984 or so. That makes up for 25+ years of me using various types of computers – and that is a long time with a lot of stories to tell (especially to those that never knew anything else but a PC).

My very first computer was “only” a Sinclair ZX-81 owned by my Dad (who “upgraded” to another system)  but it was mine.

The ZX-81 did give me quite a bit to do: I remember squeezing programs into it’s 1K RAM – simple programs that (from today’s point of view) had been the first lines of code of a 12 year old boy. Nonetheless, they had been my very first attempts on getting a computer to do what I wanted it to do.

Maybe two years later, the ZX-81 was followed by a Schneider CPC464 (after a fruitless intermezzo with an Atari 800XL) – again, because my Dad upgraded to the then brand new “IBM PCs”.

The CPC464 was an ideal platform to extend the programming skills of a young boy: it’s BASIC was rather good (even by today’s standards) and it did allow to write reasonably structured code. It also came with sufficient RAM to allow for larger programs, had color and the ability to connect a printer as well as a floppy disc drive.

Why am I now getting back to all that? Well – I had to sell my early computers because I needed the money to buy the next one. But now, a quarter of a century later, I am trying to retrace my paths and thanks to eBay and to emulation software available for today’s platform, this does bring back a ton of fond memories about the beginnings of it all. So I am hoping to get you some more posts on classic home computers over the time, some of them backed by real hardware, some of them backed by emulators and a lot of very deep digging on the Internet… because the stuff is still “out there” – it is just really rare and really well hidden at times!

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Upgrading WordPress 2.x to 3.0.1

I thought, this would have been easy – after all, Workpress 2.x was working without issues and the upgrade process seemed rather straight forward. I found a couple of useful sites that described it in detail:

I backed up my data, installed the new release, logged in to the Admin Site and my world seemed just fine. Until I tried to go to the start page of my blog just like any regular user would do – and nothing happened!

Well, not quite “nothing” but the browser kept telling me “Waiting for …” and the wheels kept spinning and spinning and after a while, the browser threw me an error.

To make a long story short, I owe this entry the final solution – tried it, logged in, worked!

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What to do with FSX, FSX Acceleration & two unused HDDs?

I had this idea for a while now – when I did install my original copy of Flight Simulator X, I did not really pay attention to separate the FSX Files from the Operating System – they went into the default \Program Files (x86)\ directory and have been sitting there ever since. Lately, I had been starting to pick up on my Flight Simming again (which I did not do for quite a while before) and one of the things that came to mind was optimizing the system performance. But there is only so much you can do if the system is installed and has been used for a while. Those two unused disks floating around and the fact that I cannot install Flight Simulator X: Acceleration Pack when the FSX Copy on the disk already has an FSX SP2 installed, made the decission easy: let’s install a brand-new system on the given hardware but with a better distribution and let’s only put those items on that I really need for flight simming (in other words: clean up!).

So first things first, a new operating system is required – Windows 7 Ultimate 64bit is the OS of choice for me – that plus the required drivers and base system software should be enough to take me through the day. So here are the hardware specs for the syetem:

  • CPU: Intel Core2Extreme QX9650, 3GHz, QuadCore
  • Motherboard: Asus P5Q
  • RAM: 4 x 2GB Kingston DDR2-800
  • nVidia GeForce GTX 275 with 896MB RAM
  • 1x Samsung SyncMaster 204B, 1x Samsung SyncMaster 245B
  • 1x Samsung HD300LJ (300GB) for Operating System
  • 1x Samsung HD403LJ (400GB) for FSX & AddOns

I am considering putting a third disk in (but I need to mount the frame first) so I can distribute OS – FSX – FSX AddOns – but first I want to find out how the separation onto two HDDs impacts the performace.

So let’s get going with the base system installation…

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WHS, LightsOut & Wake-on-LAN

Damit – that’s why they say: “Never change a running system!”. I had my WHS running with LightsOut (Green IT Software) and everything was working fine: the server woke up when a monitored client came alive and it went down when the last monitored client had gone… until a few weeks ago.

Honestly, I have invested more than just a few minutes to find out what has happened – the server was going down OK when the last client disconnected but failed to respond to the “wake-on-lan” packets when the clients tried to wake it up.

To make a long story short, I went the full nine yards, uninstalling LightsOut (WHS & Clients), reinstalling, updating, uninstalling again, etc. – to no avail. I then decided to check what I should have checked long ago: the settings of the network card on the WHS. Just to find out that the relevant NIC Settings did not enable WoL – for whatever reason… my best guess: some Windows Update might have delivered a new driver to the NIC or so – and settings had gone strange. After correcting them (to what the LightsOut manual lists as prerequisites) the WHS is now reliably responding to WoL calls again đŸ™‚

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TortoiseSVN & the lost Icon Overlays…

… pretty strange thing: one day my TortoiseSVN Installation suddenly decided to not display and icon overlays in the Windows Explorer any longer… so I thought “Uninstall it, reboot it, re-install it…” and the problem is solved. But to my surprise, it was not: even with a clean reboot and the installation of the latest version of TortoiseSVN, no icon overlay would show up in the Explorer…

As time went by (and no icons appeared) the original cause of the issue became a bit “lost in time” – from what I found out now (after having solved the issue) it appears that an uninstall of an old version and an upgrade to a more recent version might have been the root cause of the problem…

Here is what happens: Windows uses a registry key to manage the various icon overlays (not only from Tortoise but also from other applications using such functionality). That key is

HKLM\Software\Microsoft\Windows\Current Version\Explorer\ShellIconOverlayIdentifiers

This key has various sub-keys – one for each icon set handled… however, if there are more than 12, Windows cannot handle them all and just ignores some of them (most likely the ones that exceed its max. counter).

In my case, I had more than 12 sub-keys, hence it was not a surprise that certain icons did not show up. So once again, I uninstalled TortoiseSVN and rebootet the system. Now some of the keys that come from TortoiseSVN (like TortoiseConflict, TortoiseAdded, etc.) where gone but there was a remaining set of keys named 1TortoiseSVN to 7TortoiseSVN.

I suppose, these are left-overs of a previous installation of TortoiseSVN (which did not get removed properly when it was uninstalled)… so I went in and deleted those keys manually… then re-installed TortoiseSVN (Version  1.6.7) and examined the registry area again: now I only had the TortoiseSVN Keys with the naming convention TortoiseXXX added in the registry key. All in all, I now have a total of 11 sub-keys under ShellIconOverlayIdentifiers and sure enough, my icons show up in the Explorer now.

Bottomline: if your icons don’t show up, check if the ShellIconOverlayIdentifiers has exceeded its limit…

Posted in Allgemein, C# | Leave a comment