Technology Tales

A very silly mishap

Last night, something idiotic happened to me: I tripped up in my main PC's cables and brought the behemoth crashing about the place. There was some resulting damage, with the keyboard PS/2 socket being put out of action and a busted USB port and mouse. When this happens, thoughts take on the form of a runaway train and the prospect of acquiring a new motherboard and assorted expensive paraphernalia trot into your mind; there are other things that more need my cash. Of course, the last time to be making such big decisions on computer components is when a mental maelstrom has descended upon you.

Eventually, I got myself away from the brink and lateral thinking began to take over. What helped was that most of the system is unaffected, enabling me to write this post with it. While a spare will work for now, a new ergonomic mouse is on order, cheaper alternatives to the keyboard conundrum have come into play. If PS/2 wasn't an option, then USB remains one, and that was the line of attack that was taken.

It involved a visit to the nearest branch of PC World after work, from where I came away with a new USB hub and a USB-compatible keyboard for less than the price of a new AM2+ Gigabyte motherboard that would have served my needs. Though an otherwise functional Trust keyboard may have been retired, that was a less expensive option than a full PC rebuild, which I may still need to do, albeit with far less immediacy than what flashed before my eyes within the last 24 hours. In fact, acquiring some cable ties should be higher on the acquisition wish list to avoid cable-induced tumbles in the future. It really does pay to be able to step back and see things from a wider perspective.

Navigation shortcuts

Though I may have been slow off the mark on this, I recently discovered keyboard equivalents to browser back and forward buttons. They are: Alt+[Let Arrow] for back and Alt+[Right Arrow] for forward. While I may have first discovered their existence in Firefox, they seem to be more widely available than that, with the same trickery working in Chrome and Internet Explorer having them too. The existence of these keyboard shortcuts might provide some pause for thought too for those web application developers who intend to disable the Back and Forward functionality in browsers, but being able to save mouse mileage with some keyboard action can't be bad.

Useful keyboard shortcuts for managing the window sizes of Windows applications

Maximising and minimising windows is all part and parcel of using window-based user interfaces, so it's nice to know that there are keyboard shortcuts that reduce the need to use your mouse all the time. Here are a few that work on Windows:

Alt+Space+N   Minimise

Alt+Space+X   Maximise

Alt+Space+R   Restore (set to default)

One mouse at a time please…

I am referring to computer pointing devices, of course. Though his may sound a daft thing to do, I have two mice attached to my main PC. One is my ergonomic Evoluent, a device that I am growing to like a lot. To explain the set-up of the other mouse, I am going to have to say that I use a Belkin OmniCube 2-port KVM switch so that I can have two PC's controlled with the same keyboard, mouse and screen: the main machine and a backup for when things go awry. To the switch, I have attached the base unit for a Logitech MX700, my usual mouse at home until my hand troubles began (the symptoms now seem to be easing, thankfully).

Strangely, I cannot just have the KVM cable for the keyboard attached to my main computer, or the keyboard itself seems to lose contact. Alternatively, I cannot seem to get the KVM switch to recognise the Evoluent either. The result is that I two mice attached to a PC and the thing will not boot up in those circumstances. Unplugging the Evoluent and doing a cold boot seems to do the trick; the wonders of USB mean that I can always hook it up when all is running fully. I still must sort out my set-up, though...

Is computer mousemat wrist support a waste of time?

It is an occupational hazard for those who use computers a lot that they feel twinges in their wrists, hands, fingers and forearms. I, for one, have to admit that I end up getting my continual warnings. Previously, this has taken the form of wrist fatigue, weakness and discomfort and mouse mats with wrist support have taken pride of place on computer desks frequented by my person. Keyboard wrist supports have been another staple when at my workplace.

More recently, I have been exposed to a new bespoke-built application at work and its testing has meant a lot of intensive mouse work, and it can be very repetitive. The can take its toll, and my fatigued fingers have been enough to make me speak to the occupational health department at work. To their credit, they recognise the issues, and I am getting some advice from a physiotherapist. The obvious resolution is of course the very one that you can never do as much as you want when you are an application developer: rest from computer-related activities. I work with someone for whom rest has not worked, and his problems have made him ambidextrous; I am right-handed and find it tricky to use a mouse with my left, but that's what he has mastered. Exercises are another necessity; vigorous hand shaking together with wrist rotations and stretches are among those that I have been told to do every thirty minutes while using a PC. I don't know how that appears to my work colleagues, but it sounds like something that could look a little odd to those not in the know. Anything has to be better than doing permanent and lasting damage...

Doing daft exercise is fine in the comfort of one's own home, though, and that brings me to another point: you cannot just concentrate on your work set up and forget about that at home. Spending hours playing computer games on a dining table and seated on a dining room chair is never going to help your cause; that's not something that I have ever done, but it's a story that I have heard. I have certainly made some adjustments so that my wrist and arm are level with one another; the latter was likely to be inclined at an angle at times, with some strain on the wrist. Nine years go, I have had an inappropriate chair adding to the discomfort of pulled back muscles, so my current home computer chair became a required acquisition, from Argos as it happened. It performs sterling service, but that has not stopped me wondering about one with armrests, but that could be down to my using a computer desk with a roll-out keyboard shelf.

Another key piece of advice is to relax my hand on the mouse and for that, you need to set up your desk properly. Many problems are caused by the habit of holding the palm of one's hand in thin air over a mouse, and my long fingers make the practice easier to do than it should be. Having a mouse with wrist support exacerbates the situation and I have come to the conclusion that I need my wrist resting directly on the desk and that allows my arm to move the mouse too and not just my wrist. That allows me to rest the palm of my hand and my fingers on the mouse. It appears to be better for me, but it leaves one question: how did wrist supports get added to mouse mats in the first place? Saying that, I am not in a position to question the use of keyboard wrist supports, but typing has never been known to cause me any real problems.