Few things frustrate me more than the myth that computers somehow 'wear out' such that you need to buy a new one every few years. In fact of course, providing you never accept software updates other than essential bug fixes, the computer will continue to perform as well as it did the day you bought it.
Not strictly true, if we discount mechanical wear and tear, component failure, overheating caused by systems which are clogged with dust because they've never been cleaned, then we are still left with a system that slows down due to the detritus that builds up over time. We all know how fast an old system becomes after we wipe it and reinstall XP again, and this works well if we don't want to use modern programs which demand more resources (often because of poor programming). Also if we need to use new features, and if we want our systems secure then we need to use newer versions of programs, so we can't just leave the system as it was years ago.
At work we have just completely upgraded our computer systems, for two reasons, in no particular order.
- All the desktop systems were running XP
- The hardware was around 5 years old - so component failure was more likely
The server recently had a hard drive fail, and with the end of XP support we decided to buy in new machines (using existing monitor/keyboards/mice) which I specced, and with Windows 7 Professional. These PC's cost £407+vat, have Intel SSD drives and use a fraction of the power of the older ones, we no longer have a server (I'm rather dubious on that - using the cloud instead) so there are substantial power savings, as well as the cost of the new systems being tax deductable. They are very quick, all my programs open in seconds, where as previously I'd log on and come back five minutes later, they are also quicker whilst actually using them so I'm more productive. I actually went for a Intel Pentium Dual Core G3220 processor, rather than a i3 as this allowed me to get 180GB SSD instead of a smaller one for the same price, but I was surprised at just how quick this budget CPU is, running Super Pi (only uses 1 core) at 1 million decimal places was almost as quick as my home PC which is an i5 750 clocked at 4Ghz, which is now 5 years old apart from the SSD. My PC case at work is now 14 years old, I just upgraded the internals on mine :-) with the old bits being donated to a friends 12 year old son to build his first PC which I'm helping him with.
All the old PC's have been recycled and had Vista installed (they were previously downgraded to XP) and are being given to members of staff.