Can you recondition an old computer?

There are many ways to deal with old computers. One popular way is to get rid of it. This is because old computers have no value, are slow and take lots of physical space.

The other way to deal with them is to sell them for a super low price so that you can buy a new one without paying too much. However, second hand electronic stuff does not really have any value. For instance, you probably ended up selling a graphic card for $50 that you bought for $200-$300 originally.

So why not keep your old computer and make good use of it.

How to rebuild an old PC

1. Format your hard disk to ensure you have completely remove all the data in it – remember that even formatting your disk might not remove all your data.

2. Install an new Operating System. If you are looking at Windows, XP might be a good choice for an old PC, however 7 also handles low spec hardware pretty well, so is also worth considering. There are several reasons why I think Windows XP is no longer the best choice:

  • License rarity – Windows XP is 3 versions behind the current Windows operating system, meaning few firms still stock XP licenses
  • Support has ended – Microsoft have officially announced the termination of the support for Windows XP in 2014
  • Malware issues – Windows XP is prone to more security risks than more current operating systems, simply because it has been around longer; this means you are likely to need a better antivirus software to keep the PC safe

If you don’t want to go down the Windows route, I highly recommend is the Ubuntu, which is a free Linux OS. There are several free Linux operating systems out there but so far, I think Ubuntu is one of the popular Linux distribution and probably easiest to use.

What is the requirement to run Ubuntu? According to the official site, these are the requirements.

  • 700 MHz processor
  • 512MB of RAM
  • 5GB of hard disc space
  • VGA capable of 1024×768 screen resolution
  • Either a CD/DVD drive or a USB port – or both

I bet you have a better PC than Ubuntu requires 😉 Ubuntu

Uses for an old computer running Ubuntu

No matter how old the computer, it always has uses. Here are some of my suggestions:

  1. Use it for regular web browsing. With a lightweight operating system (which won’t suck up your RAM and CPU usage) your old computer can still perform pretty well for simple web browsing
  2. Use it for data backup. You can always transfer all your important stuff into an old computer, and use it as a backup machine, so you can keep your files safe and access them easily
  3. Home surveillance system. If you buy a webcam or two and install them into your house you could use your old computer to run your own home surveillance system!

So now, if you have an old computer lying around or burred in your storeroom why not dig it out and start making good use of it?

If you have any good idea on how to re-use your old computer, why not share with us below?

Is updating Java really important?

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What do you know about Java? If the answer is not much, then you are not alone. In this article I am going to explore exactly what Java is, and why it is so important that you keep it up to date.

Java or JavaScript?

Java and JavaScript are completely different things, however many people confuse them as one and the same.

JavaScript
JavaScript is a scripting language (like PHP and HTML) that is used in browsers to help render websites, and is also now used to create [relatively simple] desktop games.

We use JavaScript on our blog. One example can be found in our comment form; if you don’t tick the box to confirm you have read the comment policy and click Post Comment, a box comes up reminding you that you have to tick it to proceed – that works via JavaScript.

You can disable JavaScript, but so many websites use it nowadays, your browsing experience would be significantly affected.

Java
Java is a programming language, which is capable of doing far more than JavaScript. Java can be used to create new programs and applications that run virtually on their own, or via a browser.

Most computers come pre-loaded with Java, as do many other devices, including some cars, printers, parking machines, ATMs and more. A printer doesn’t use JavaScript, as it is a browser based language.

Malicious Java

It is possible for someone to gain access to your computer via Java. All you would need to do is visit a website with malicious Java code on it, and unknowingly to you, you could be being hacked. Some websites allow you to add your own code to their site, (like forum’s for example) so it might not even be a malicious website you are visiting, just one page which contains malicious code.

Oracle's Java logoWhen you visit a page with a malicious Java application, your browser will usually start to run the code, which will open up a direct link between your PC and the hacker – remember browsing the net is a two way process, every time you request data from a server, the server can request something back.

On face value, a page with malicious Java could look completely normal and trustworthy, as you wouldn’t be able to see the code – your browser would render it for you.

Malicious code can give a hacker almost complete access to your machine, via the internet. They could potentially browse through your files and open applications, and even receive feedback from input devices like a webcam and microphone.

Java Update

When Sun Microsystems (who are now owned by Oracle) developed Java, they didn’t plan for it to be used maliciously, and still don’t. Like with most code, hackers exploit loopholes and flaws in the language, to enable them to perform malicious activity.

Oracle's logoLike with any software, to combat malicious activity, when flaws are discovered, developers create patches and launch new versions to protect uses against their installation being misused.

Many of the know ways Java can be used to gain access to your computer are preventable, if you have the latest version installed.

It is important that you not only keep your computers version of Java up to date, but also your browser’s version. Many browsers come with a Java plugin, and this can become outdated, even if your system version of Java is up to date.

You should check to see if your browser’s extensions and plugins are up to date ideally once every week. If you have Premier IT Support, or your computer is updated by an external provider, you shouldn’t need to update Java, as that should be taken of care for you.

Vintage Computers For Sale

Buoyed by the sale of one of the first and few remaining Apple 1 computers for $650,000 I started thinking about the old machines that were lying in my mum’s garage and wondering if I was sitting on a fortune.

Although I myself was never interested in computers my younger brother was a guru, going on to study computing at University, so we have a real vintage lot just awaiting discovery.

The first Hankins computer was a 1981 Sinclair ZX81. What a machine that was. It was manufactured by the famous watch maker Timex in Scotland, and really represents the movement from mechanical to digital technology. I remember recording programs onto a cassette recorder that were broadcast over the radio as a series of sounds similar to the noise a fax makes. Then you play them into the machine and bang you are off, you could use your 1kB of memory to do almost anything (or nothing).

A Sinclair ZX81

A Sinclair ZX81

The keys were part of the machine, like an old cash register, and it is through these that my brother learned the skills of programming in Basic, although I never got to grips with it. Then he moved on to Extended Basic and machine code (whatever that is).

Anyway it will not make me rich, they go from about $2 to $20 on eBay.

But even 1 kB of memory was not enough for us so a couple of years later we (my parents) invested in what was in its day the height of technology, a TI99. This was altogether greatly improved, it had a cartridge system in the front so you could slide in games and use the cursors to maneuver through the asteroid fields.

The TI99 was manufactured by calculator maker Texas Instruments and was the first computer with a 16 bit processor. Texas Instruments were big on voice synthesis and the big use of it for us was during the game Parsec. With 16kB of memory we had moved on considerably, and my brother made the most of learning Extended Basic using their wonderful program.

A TI99 Home Computer

A TI99 Home Computer

Just look at the lines on this beast, a design classic it sold almost 3 million units and with 68 by 48 pixels in colour the picture was a joy to behold when plugged into our TV.

It was high finance though for our family, it cost more than $500 US when newly released but as with all of these things the price fell over the following years to $150, and so the question arises again, am I rich today?

The answer unfortunately is no, you can buy one on eBay for about $20. Could be a great investment though, they have one in a museum in Paris.

Well a couple of years passed and my brother needed a serious computer to take to University. At great expense my parents went for the BBC Microcomputer built by Acorn. This was much more of an educational tool, and its release was followed by a BBC educational series that taught its user (my brother and unfortunately not me) to program, and it was the machine of choice for UK universities and schools.

Our model B had 128 kB of memory, a giant leap that allowed graphics programing and increased complexity of use. It also had a floppy disc for ease of data transferral. It was a beast of a thing though as it sat in my brother’s bedroom, and it is the most expensive machine in the house to date.

A BBC Acorn Computer

A BBC Acorn Computer

Oh how I could pay my mum back if it were now worth the same as the first Apple I thought, but once more eBay broke the spell. From $10 to $150 with all the extra hard and software, so sorry mum the Austin Martin will have to wait.

After University (and post BBC) my brother went to work and we moved into company machinery, laptops, blueberry, blackberry, apples and other fruits of commerce, and I lost touch a bit, but I alone have owned 3 desktops and 3 laptops to date and it is all awaiting disposal, so there certainly isn’t much room in my mum’s garage today (certainly not enough for an Aston Martin anyway).