The IBM PC – 25 years old today

This content is 18 years old. I don't routinely update old blog posts as they are only intended to represent a view at a particular point in time. Please be warned that the information here may be out of date.

After reporting on the 15th anniversary of the world wide web earlier this week, there’s another important milestone in computing history to highlight today – the 25th birthday of the original IBM PC – the 5150.

IBM PC

Whilst the 5150 was not the first personal computer, the use of components that were available to other manufacturers led to the development of IBM-compatible PCs and today’s PCs and PC servers are direct descendents from the original IBM PC, albeit much more powerful than the 4.77MHz Intel 8088 with between 16 and 640KB of RAM.

Amstrad PPC640

I didn’t get my first IBM-compatible PC until 1988 when my parents bought me an Amstrad PPC640 portable computer (it’s still in my loft at home) with an NEC V30 8MHz processor, 640KB of RAM, a full-size 102-key keyboard, two 720KB 3.5″ floppy disk drives and a 2400 baud modem (which my secondary school let some of my friends and I use for short periods of time to access bulletin boards). It was best described as “luggable” but, paired with the Citizen 120D dot matrix printer (that I also still have at home), it was more than adequate for word processing and saw me through my first year at Uni’ until I used all my childhood savings to buy an Intel 80386-based PC clone with a 1MB graphics card, MS-DOS 5.0, and Windows 3.0.

Fast forward 15 years and you can pick up a PC for just a couple of hundred pounds – or, if you’ve got a few thousand to spend then it’s possible to specify some very high specification PC servers! Earlier this week I was specifying some servers for a virtualisation solution that I’m working on. Each of these servers is an HP DL585 with 4 dual-core 2.6GHz AMD Opteron 64-bit CPUs, 32GB of RAM and has a fibre-channel connection to an HP Modular Storage Array with many terabytes of data storage. How mighty oaks from little acorns grow.

Opening up the Mac Mini – easy when you know how

This content is 18 years old. I don't routinely update old blog posts as they are only intended to represent a view at a particular point in time. Please be warned that the information here may be out of date.

Woohoo! 2GB RAM in my Mac for less than half the amount that Apple would have charged me (does anybody want to buy 2x256MB 667MHz DDR2 SODIMMs that have been used for just one month?).

Mac with 2GB RAM installed

Ordinarily, I’d say that upgrading the RAM in a PC is no big deal, but Mac Minis don’t have any screws to open the case; and unlike many notebook PCs, it not a case of popping open a small panel either.

Thankfully the instructional videos at the OtherWorldComputing Tech Center include a hardware upgrade tutorial for the Intel Mac Mini which showed exactly how to do it (thanks guys – if you sold memory in the UK I would have bought it from you).

So, armed with a Stanley DynaGrip 50mm filling knife that I picked from B&Q on the way home and an old plastic visitors pass (from Microsoft of all places!), I gained access to the inside of my Mac and swapped out the standard 256MB SODIMMs for two new 1GB modules from(which arrived in 24 hours with free shipping by Royal Mail Special Delivery – and there was 5% off the day I bought them, so they only came to £178.59 including VAT).

The operation wasn’t without it’s hiccups. First of all, I didn’t quite insert one of the memory modules correctly so when I booted the Mac it only saw 1GB of RAM. Then, when I reopened the computer to investigate, the knife slipped and I made a small scratch on the outside of the case (annoying, but too late to do anything about it now). I refitted the RAM, but dropped one of the screws inside the unit and the airport antenna came off whilst I was trying to locate the missing screw… that was a bit of a heart-stopper but it was easily reattached (once I worked out where to fix it). Finally, I forgot to reattach the small cable at the front of the motherboard so the fan ran continuously until I opened the Mac up for a third time and reattached the missing connector. Notwithstanding all of these errors, everything is working now and the extra memory should make everything a lot faster.

Warning – buy your upgrades when you buy your Mac

This content is 18 years old. I don't routinely update old blog posts as they are only intended to represent a view at a particular point in time. Please be warned that the information here may be out of date.

A few weeks back, I bought a Mac Mini. Because I wanted it shipped immediately (and because the upgrade prices sounded a bit steep), I stuck with the standard 80GB hard disk and 512MB of RAM and now I’m finding performance to be a little sluggish – I suspect that’s due to a lack of memory.

When I ordered the Mac, the cost of specifying 2x1GB 667MHz DDR2 SDRAM SODIMMs instead of 2x256MB was £210.01. Likewise, to take the SATA hard disk from 80GB to 120GB would cost £89.99. Those are (very) high prices for standard PC components but nothing compared to the quote I just had from the Apple Store for 2GB of RAM (with “free” installation) – over £420! Mac:Upgrades can do a similar deal (but not while I wait) for around £325 but when I look at the memory prices using the Crucial Memory Advisor Tool to I get two options that will work for me, each at a much lower price:

  1. I could drop one of my 256MB SODIMMS and replace it with a 1GB module, giving me a total of 1.25GB for just £98.69.
  2. Alternatively, I could take out all of the existing memory and add a 2GB kit (2x1GB of matched memory) for £186.81.

…so, I guess there will be bits of MacIntel all over my desk in a few days time…

Crucial recommend the matched pair option for reasons of performance (Apple say it allows memory interleaving), and if I’m going to open up my Mac (which looks to be a delicate operation) then I’d rather only do it once – that means option 2, which is only a few pounds less than the original upgrade would have been (although I will have 512MB of spare memory afterwards).

In all, for the sake of my warranty (and sanity), it looks as if the best option would have been to specify extra RAM at the time of purchase, but I guess if I do wreck the machine in the process of upgrading, the cost of replacing it is not much more than Apple would charge me for 2GB of RAM!

Rumour has it that the new Intel Core 2 Duo processors are socket compatible with my Core Duo (and quad core chips should be available by the end of the year) so a return to the operating table for a processor upgrade is a distinct possibility for the future.

The week when my digital life was on hold

This content is 18 years old. I don't routinely update old blog posts as they are only intended to represent a view at a particular point in time. Please be warned that the information here may be out of date.

Last week I wrote about the arrival of my new Mac Mini, along with claims that “[my] digital life starts here”. Thankfully, unlike a chunk of my computing resource, my physical life doesn’t rely on Apple Support.

I was experiencing problems maintaining a steady Ethernet connection, initially whilst downloading OS X updates from Apple and then whilst copying data from a Windows XP PC. After a random time the connection would drop, with receive errors shown in the OS X Network Utility. The only way to break this cycle was to restart the computer after which time the network was once again available.

I spent almost two hours on the phone to Apple support staff, who were generally helpful, but seemed to be relying on scripted support sequences and an internal knowledge base. It seemed that all Apple really wanted to do was rule out the Apple hardware and point the blame on something else on the network. Sure enough, I couldn’t replicate the problem on a direct crossover cable (100Mbps full duplex), or via a 10Mbps half duplex hub, 100Mbps full duplex switch – just via a 100Mbps half duplex hub but crucially, the other devices on the network were all able to communicate with each other via the same hub with no errors at all. Only the Mac had a problem.

I finally snapped and said I wanted to return my shiny aluminium paperweight when the support analyst suggested I checked the firewall settings on the PC from where I was trying to copy data (I pointed out that if there was a firewall issue then no data at all would be copied – not several hundred megabytes before crashing and in any case the problem existed downloading updates from Apple’s website too).

After being advised to take my Mac to a hardware specialist 30 miles away (to see if there were any problems communicating with another Mac), I decided to rebuild it from the operating system install disks. The 14 Mac updates that took so long to install before (now 13 as one was a permanent BIOS update) were applied with just one error. It seemed that the problem was with the operating system as installed in the factory (presumably not a DVD installation, but performed using disk duplication software). Unfortunately, although it seems to take a lot longer before crashing now, the problem is still there when I connect via the hub, so I’ve added a switch just for the Mac (everything else is as it was before).

One thing I should say is that the guys who responded to my call for help on the Apple discussion forums were really helpful (I guess switching from Windows to OS X is something which Mac users would like to encourage).

So, now I’m up and running and my digital life can start. Just as well, because my new Fujitsu-Siemens S20-1W monitor turned up yesterday – 20.1″ of widescreen vision, at a resolution of 1680×1050, in a brushed aluminium case (no plastic here) and almost £200 less expensive than the Apple equivalent (I got it from Dabs.com for £365).

Fujitsu-Siemens S20-1W

Amazingly, excellent customer service in PC World!

This content is 18 years old. I don't routinely update old blog posts as they are only intended to represent a view at a particular point in time. Please be warned that the information here may be out of date.

PC WorldI honestly never thought I’d see the day when I would praise PC World (or any DSG International store) for their customer service but, credit where credit’s due, tonight I was pleasantly surprised (although a Google search for DSG Retail will turn up many unhappy customers).

Toshiba PX1223E-1G32 320GB External Hard Disk

A few weeks back, I bought myself a Toshiba 320GB 7200 RPM external USB 2.0 hard drive with 8MB data buffer – a bargain at £109.99. It’s been so good that last night I dropped by on my way home to buy another one (to back up my data – disk is so much easier than tape). The price had increased to £119.99 but after making the effort to visit the store, I bought one anyway.

When I got home, I checked the web and found that the best online price was also from PC World, who were selling the same item online for £99.99 with free shipping (or collection from store). I understand that online prices should be lower than instore (lower overheads, etc.) but decided to return the disk and buy it again online at the lower price. Before I did that, I needed to call PC World and check the returns policy (for unwanted goods it is “at the manager’s discretion”) before committing to buy another.

Unfortunately for me, the Internet price increased overnight to £109.99 but that’s still a tenner less than I had paid, so this evening I returned the disk, explaining that there was nothing wrong with it – I’d just be saving myself a few quid by buying another one on the ‘net.

Unexpectedly, the staff member that I spoke to not only refunded my original purchase, but then ordered me one at the web price, which I then “collected” and paid for (of course, it was the same one I’d just taken back). She explained that they are not supposed to do that, but understood that it saved me from making another trip (or waiting for delivery). I won’t name the store or the staff member because I don’t want to get them into trouble; but if you’re reading this – thank you.

(I then drove home very carefully, watching out for flying pigs and an ice-skating Devil).

How to interpret Seagate disk drive model numbers

This content is 19 years old. I don't routinely update old blog posts as they are only intended to represent a view at a particular point in time. Please be warned that the information here may be out of date.

A couple of weeks back, I was sent a replacement hard disk drive for my work PC. After backing up my data and opening up my notebook PC, I found that the replacement was actually a Seagate ST980825AS Serial ATA (SATA) drive, rather than an ST9808211A Ultra ATA (EIDE) disk. Although the new disk drive is much faster, unfortunately it won’t actually fit my laptop; but I did come across this useful guide to interpreting Seagate disk drive model numbers.

A Windows Vista-ready PC for $366

This content is 19 years old. I don't routinely update old blog posts as they are only intended to represent a view at a particular point in time. Please be warned that the information here may be out of date.

A few months back, I wrote about how you don’t really need the latest hardware to run Windows Vista and I’ve just read about Chris Sells’ $366 Windows Vista PC. To my mind, that’s proof that you don’t need an expensive new PC to run Vista.

Love the PC – hate the technical support

This content is 19 years old. I don't routinely update old blog posts as they are only intended to represent a view at a particular point in time. Please be warned that the information here may be out of date.

I love my IBM ThinkPad T40 – it’s easily the most solidly built of my three notebook PCs and whilst my everyday PC is a much more highly specified Fujitsu-Siemens Lifebook S7010D the ThinkPad is my machine of choice.

Unfortunately, a few weeks back, I accidentally deleted the hidden protected area (HPA) on my ThinkPad (also known as the Access IBM pre-desktop area).

My first experience of IBM’s technical support was great – once they had confirmed that the machine was in warranty, they were happy to send me recovery CDs free of charge but since then things have not been good. Even my less-than-satisfactory experiences of Dell and CA support via e-mail from India was better than my current experience of IBM. All I could get from IBM hardware support was a statement that the restore CD should bring back the pre-desktop area (it doesn’t) and a referral to the software support line. There lies the problem (via an e-mail from an obscure e-mail address that fell foul of Outlook’s junk e-mail filters) – IBM provides free hardware support during the computer’s warranty period and free software support for the first 30 days after the purchase of the computer, after which the software support becomes chargeable. Fair enough for operating system support, but for an IBM technology accessed via a hardware function key? My last e-mail asked them to clarify whether they consider a partition provided on the hard disk to be hardware or software. No response (although I suspect I know the answer to that one).

Surely it’s not unusual for a hard disk to be replaced in an IBM PC and for the Access IBM pre-desktop area to be restored? Grrr.

Deleting files with CRC errors in Windows XP

This content is 19 years old. I don't routinely update old blog posts as they are only intended to represent a view at a particular point in time. Please be warned that the information here may be out of date.

I just fixed a little problem on my Windows XP laptop… I had a file which I could not delete (even after a reboot) and each time I tried, the error returned was:

Cannot delete filename: Data Error (Cyclic Redundancy Check)

Various Internet sites suggested rebooting in safe mode and removing the file – that didn’t work but chkdsk /r located the bad disk sectors and recovered the data. Once this was complete, I successfully removed the file.

If you have to do this, be ready for the chkdsk process to take a while.

The smallest MP3 player in the world

This content is 19 years old. I don't routinely update old blog posts as they are only intended to represent a view at a particular point in time. Please be warned that the information here may be out of date.

As far as impulse purchases go, this has to be the coolest one I’ve made in a while: at lunchtime today, on the way back from grabbing some sarnies in M&S, Toffa and I dropped into Dixons and I came out with a 24mm x 24mm x 24mm cube (called a Q-BE) that weighs just 18g, includes 1GB of memory and is an MP3/WMA player.
Q-BE
The manufacturers claim that this is the smallest MP3 player in the world.

The Q-BE also includes a graphic equaliser with 6 settings, an OLED display and a clock. The built-in lithium-ion battery is charged via a USB to 3.5mm headphone adaptor cable, which is also used to copy music files to the device. As it appears as a removable drive in Windows, I can see no reason why it couldn’t also be used for data. According to the instruction manual, there is an optional FM radio capability, but I can’t find anything else about that; although the Q-BE website indicates that it will soon include software updates for download. The Q-BE also comes with earphones and a lanyard, as well as a protective case.

I haven’t mentioned the best bit yet. I don’t know why (maybe it hasn’t sold well and they’re dropping it?) but, in the UK, Dixons and Currys are selling the 512MB version for £24.99 (was £74.99) or the 1GB version for £39.99 (was £99.99). I’d find it hard to buy a USB stick with that capacity for that price – let alone one with MP3 capabilities that looks this cool!