In the middle of last year, my home computing experience was one of feeling displaced. A combination of a stupid accident and a power had rendered my main PC unusable. What followed was an enforced upgrade that use combination that was familiar to me: Gigabyte motherboard, AMD CPU and Crucial memory. However, assembling that lot and attaching components from the old system from the old system resulted in the sound of whirring fans but nothing appearing on-screen. Not having useful beeps to guide me meant that it was a case of undertaking educated guesswork until the motherboard was found to be at fault. In a situation like this, a deeper knowledge of electronics would have been handy and might have saved me money too. As for the motherboard, it is hard to say whether it was a faulty set from the outset or whether there was a mishap along the way, either due ineptitude with static or incompatibility with a power supply. What really tells the tale on the mainboard was the fact that all of the other components are working well in other circumstances, even that old power supply.

A few years back, I had another experience with a problematic motherboard, an Asus this time, that ate CPU’s and damaged a hard drive before I stabilised things. That was another upgrade attempted in the first half of the year. My first round of PC building was in the third quarter of 1998 and that went smoothly once I realised that a new case was needed. Similarly, another PC rebuild around the same time of year in 2005 was equally painless. Based on these experiences, I should not be blamed for waiting until later in the year before doing another rebuild, preferably a planned one rather than an emergency.

Of course, there may be another factor involved too. The hint was a non-working Sony DVD writer that was acquired early last year when it really was obvious that we were in the middle of a downturn. Could older unsold inventory be a contributor? Well, it fits in with seeing poor results twice, In additon, it would certainly tally with a problematical PC rebuild in 2002 following the end of the Dot Com bubble and after the deadly Al Qaeda attack on New York’s World Trade Centre. An IBM hard drive that was acquired may not have been the best example of the bunch and the same comment could apply to the Asus motherboard. The resulting construction may have been limping but it was working and I tolerated.

In contrast, last year’s episode had me launched into using a Toshiba laptop and a spare older PC for my needs with an external hard drive enclosure used to extract my data onto other external hard drives to keep me going. It felt a precarious arrangement but it was a useful experience in ways too. There was cause for making acquaintance with nearby PC component stores that I hadn’t visited before and I got to learning about things that otherwise wouldn’t have come my way. Using an external hard drive enclosure for accessing data on hard drives from a non-functioning PC is one of these. Discovering that it is possible to boot from external optical and hard disk drives came as a surprise too and will work so long as there is motherboard support for it. Another experience came from a crisis of confidence that had me acquiring a bare-bones system from Novatech and populating it with optical and hard disk drives. Then, I discovered that I have no need for power supplies rated more than 300 watts (around 200 W suffices). Turning my PC off more often became a habit friendly both to the planet and to household running costs too. Then, there’s the beneficial practice of shopping locally and it can suffice even if what PC magazines stick on their hot lists but shopping online for those pieces doesn’t guarantee success either. All of these were useful lessons and, while I’d rather not throw away good money after bad, it goes to show that even unsuccessful acquisitions had something to offer in the form of learning opportunities. Whether you consider that is worthwhile is up to you.

Firefox 3.6 is now available and others are going on about more striking features but it’s small change that I have noticed and it happens to be a good one too. Middle clicking on a link in tab used to open a new one at the right hand of the tab bar. Now, the new tab opens next to the one where the click was clicked and that’s a good thing if you are previewing blog posts. It was something that Internet Explorer already did so it’s good to see cross-fertilisation of useful features; yes, Microsoft can come up with good ones too from time to time. Though not likely to make major headlines, this is the type of thing that makes for better user experience and a few of them together can be more beneficial than some big shiny new feature. In life, it’s often the little things that make all the difference.

There are whole pile of SAS functions for testing text strings that hadn’t come to my attention until this week. Until then, I’d have gone about using functions like INDEX and PRXMATCH functions for the same sort of ends but it’s never any load to have a few different ways of doing things and to use the right one for the job. Here’s a quick list of my recent discoveries:

ANYALNUM: First position of any alphanumeric character, returns 0 if absent

ANYALPHA: First position of any alphabetic character (letter of the alphabet), returns 0 if absent

ANYCNTRL: First position of any control character, returns 0 if absent

ANYDIGIT: First position of any numeric character, returns 0 if absent

ANYFIRST: First position of any character that can be used as the start of a SAS variable name when VALIDVARNAME is set to V7, returns 0 if absent

ANYGRAPH: First position of any printable character that isn’t white space, returns 0 if absent

ANYLOWER: First position of any lowercase letter, returns 0 if absent

ANYNAME: First position of any character that can be used in a SAS variable name when VALIDVARNAME is set to V7, returns 0 if absent

ANYPRINT: First position of any printable character, returns 0 if absent

ANYPUNCT: First position of any punctuation character, returns 0 if absent

ANYSPACE: First position of any whitespace character (tabs, carriage returns and the like), returns 0 if absent

ANYUPPER: First position of any uppercase letter, returns 0 if absent

ANYXDIGIT: First position of any hexadecimal character, returns 0 if absent

NOTALNUM: First position of any non-alphanumeric character, returns 0 if absent

NOTALPHA: First position of any non-alphabetic character, returns 0 if absent

NOTCNTRL: First position of anything that isn’t a control character, returns 0 if absent

NOTDIGIT: First position of any non-numeric character, returns 0 if absent

NOTFIRST: First position of any character that cannot be used as the start of a SAS variable name when VALIDVARNAME is set to V7, returns 0 if absent

NOTGRAPH: First position of anything that isn’t a printable character that isn’t white space, returns 0 if absent

NOTLOWER: First position of anything that isn’t a lowercase letter, returns 0 if absent

NOTNAME: First position of any character that cannot be used in a SAS variable name when VALIDVARNAME is set to V7, returns 0 if absent

NOTPRINT: First position of any non-printable character, returns 0 if absent

NOTPUNCT: First position of anything that isn’t a punctuation character, returns 0 if absent

NOTSPACE: First position of anything that isn’t a whitespace character, returns 0 if absent

NOTUPPER: First position of anything that isn’t an uppercase letter, returns 0 if absent

NOTXDIGIT: First position of anything that isn’t a hexadecimal character, returns 0 if absent

Apart from simpler cases where other techniques would work well with the a similar amount of effort, there are others that would need some investigation if you were program them without using one of the above functions. For that reason, I’ll be keeping them in mind for when I might meet one of those more complex scenarios.

Early on in the first year of this blog, I got to investigating the use of Drupal for creating an article-based subsite. In the end, the complexities of its HTML and CSS thwarted my attempts to harmonise the appearance of web pages with other parts of the same site and I discontinued my efforts. In the end, it was Textpattern that suited my needs and I have stuck with that for the aforementioned subsite. However, I recently spotted someone very obviously using Drupal in its out of the box state for a sort of blog (there is even an extension for importing WXR files containing content from a WordPress blog); they even hadn’t removed the Drupal logo. With my interest rekindled, I took another look for the sake of seeing where things have gone in the last few years. Well, first impressions are that it now looks like a blogging tool with greater menu control and the facility to define custom content types. There are plenty of nice themes around too though that highlights an idiosyncrasy in the sense that content editing is not fully integrated into the administration area where I’d expect it to be. The consequence of this situation is that pages, posts (or story as the content type is called) or any content types that you have defined yourself are created and edited with the front page theme controlling the appearance of the user interface. It is made even more striking when you use a different theme for the administration screens. That oddity aside, there is a lot to recommend Drupal though I’d try setting up a standalone site with it rather than attempting to shoehorn it as a part of an existing one like what I was trying when I last looked.

One of the consequences of buying a new camera is that your current photo processing software may not be fully equipped for the job of handling the images that it creates. This is a particular issue with raw image files and Adobe Photoshop Elements 5 was unable to completely handle DNG files made with my Pentax K10D until I upgraded to version 7. Yes, I do realise that upgrading camera should been in order but I only lost the white balance adjustments so I could with things as they until upgrading gained a more compelling case.

As things stood, Elements 7 was unable to import CR2 files from my Canon PowerShot G11 into the Organiser so it was off to the appropriate page on the Adobe website for a Camera Raw updater. I picked up the latest release of Camera Raw (5.6 at the time of writing) even though it was found in the Elements 8 category (don’t be put by this because release notes address the version compatibility question more extensively). Strangely, the updater doesn’t complete everything because you still need to copy Camera Raw.8bi from the zip archive and backup the original. Quite why this couldn’t have been more automated, even with user prompts for file names and locations, is beyond me but that is how it is. However, once all was in place, CR2 files were handled by Elements without missing a beat.

Back in the early days of this blog, I mulled over the idea of having a high-end digital compact camera to complement a DSLR that then was delivering very dusty images; that Canon EOS 10D was cleaned since then and comes in for occasional use to this day. That was nearly three years ago and a first generation Ricoh GR Digital was the item that then was catching my eye. At the time, I failed to justify spending that much money on such a thing and ended up acquiring a new Pentax K10D DSLR instead. The question that rattled about my head was this: what was the point of spending DSLR money on a compact camera? Its one that never really went away and comes to mind when you see the prices of interchangeable lens compacts like Olympus’ Pen and equivalent offerings from Panasonic and Ricoh (there, it’s interchangeable lens units rather than actual lenses).

The strongest counterpoint to the cost conundrum is the little matter of size. SLR (film or digital) cameras are sizeable things and there is a place for having something that drops into a pocket. It is that which has propelled me into taking delivery of a Canon PowerShot G11. It may need a good-sized pocket but, unless you are going out with no jacket, it shouldn’t be a problem most of the time. For those shorter sorties when I don’t fancy bringing an SLR out, it well-built and looks the business though some acclimatisation is in order to make the best of the knobs, buttons and menus. Nevertheless, the included manual will help with this process (there’s a paper quick start guide and more detailed documentation on CD).

The camera hasn’t seen extensive use just yet so here are a few early impressions. Firstly, there’s the matter of size: it’s even smaller than the first camera that I ever bought (more than fifteen years ago) and that was a Ricoh 35 mm compact film camera. That comparison is even more striking when you consider the feature sets. The Ricoh was a fixed 35 mm lens affair with things like date and time stamping, ISO choice and a nod towards scenic mode selection. In contrast, the much newer Canon is loaded with the sorts of things that normally are found almost exclusively on SLR’s, starting with its effective 28-140 mm focal length range.

Exposure modes such as manual, aperture priority and shutter priority complement scene-based modes and another for movies (not a concern of mine, it has to be said). As if that weren’t enough, there’s exposure compensation too. It came as a surprise to me to find a form of manual focussing included though it is not as convenient as turning a focussing ring on a lens. You can see the inbuilt flash above but there’s also a hotshoe and a place to attach a tripod too. Settings like white balance and file format are accessed using the Function/Set button with the lever underneath the shutter release button controlling the focal length of the lens. In addition, there’s also image stabilisation and that’s important when you’re using live view to compose a photo. Spot metering and focal point selection are other things that find their way into the package. Some may be excited by other things but exposure and focussing are essential for any photographic efforts.

An optical viewfinder is included and it has dioptre settings too but my first impressions are that live view though the rear screen trumps it and I see no need for such things on SLR’s. That also flips out from the camera body and can be rotated either for self-portraiture or for folding back in on the camera body for use like a non-articulated screen. Another use is with those occasions when the subject means holding the camera in positions that would be impossible with a conventional screen; holding the camera over your head or down low on the ground are the sorts of situations that come to mind.

Of course, there’s more there than those features that I have listed and the specifications on the Canon website are as good a place to start as any. So far, my only testing has been of the cursory checks variety and to make sure that the thing works properly. Still, this has given me more of a feel for the camera and how it operates. As you’d expect, high ISO settings are noisy but a bigger surprise was that the smallest aperture setting is f/8. Being used to SLR’s, I was expecting to get f/16 and its like on there but a spot of internet investigation showed that I should have been taking the size of the sensor into account with my expectations. Any trials so far have been in dull weather so I’d need to use it in a wider variety of conditions before giving it the sort of wider appraisal that you’d find in the likes Outdoor Photography (who liked it, it has to be said). For what it’s worth, I have found no major criticism so far though I cannot see it usurping my SLR’s but that never was the intention anyway.