The great computer software battle

Windows 7 versus Apple: The great computer software battle. Battling for your business: Should you go for Apple software for your computer or wait for Google?

There's no escaping it: Windows Vista was a disaster. Launched in 2007, Microsoft's follow-up to the massively successful Windows XP software, which powers the vast majority of the world's computers, met with lukewarm reviews and terrible customer satisfaction ratings.

It was simply too demanding of the computers it ran on – and the people who used it. Which is why Microsoft is going to great lengths to prove its new operating system, Windows 7, isn't just better than Vista – it's also simpler.

It takes up 40 per cent less disk space and has lower hardware requirements, so it runs faster on the new cut-price laptops known as netbooks. But it faces tough competition from two of the biggest names in technology: Apple and Google.

The Windows advantage

Microsoft Windows runs on over 90 per cent of all PCs and, despite losing a few percent in the last two years, it's reassuringly familiar for most computer users. What's more, the ubiquity of Windows means many applications – particularly business-critical ones – are written exclusively for Windows.

The Windows-only gaming market is massive, too.

But Windows' dominance comes at a cost: the vast majority of malicious viruses are created to target the system. Which is why Windows 7 builds on one of Vista's notable strengths – security.

Microsoft has produced its own anti-virus software, Security Essentials, which is available as a free download; the latest Internet Explorer browser will stop you giving personal data to spoof websites; and regular software updates will fix any problems as soon as they're discovered.

Just as important as security is simplicity. The new system borrows some of the best bits of the Apple Mac user interface – such as a taskbar at the bottom of the screen allowing you to launch software quickly. The taskbar will also allow you to view thumbnail images of the windows associated with each open application, which helps you navigate your way through email and web pages.

There are some cool features that are totally original to Windows, too – like the ability to drag two windows to either side of the screen and have them automatically resize so you can compare and contrast.

The built-in Media Center software makes it easy to enjoy music and video on a laptop that's hooked up to a TV, and you can even 'push' video from one computer to another – enabling parents to control what their children are watching in their bedrooms.

Return of the Mac

Two months before the launch of Windows 7, Microsoft's old rival Apple launched its own operating system update, called Snow Leopard. Rather than adding new features, most of the changes were under-the-bonnet performance improvements. But Apple has less to prove – sales of Macs have been steadily increasing, buoyed by the success of the iPod and iPhone.

Unlike Microsoft, Apple designs both hardware and software, which makes it easier to create stylish and stable systems. You'll pay more for a Mac, but the price includes brilliant software for managing your digital photos, editing home videos, recording music and even designing your own website.

While Apple's high prices mean its computers are unlikely to threaten the supremacy of Windows, the massive success of the iPhone – which offers web browsing, email and downloadable applications – suggests that the face of computing is changing. And in the world of mobile, Microsoft is struggling to keep up with the pace.

The threat of Google

Windows' biggest challenge will come when Google releases its own operating system, Chrome, next year. It's built on the same foundations as Linux – the free, open-source software that powers many netbooks.

But Google promises something altogether different: an operating system 'designed for people who live on the web'. Chrome will provide access to Google's free 'cloud computing' services – everything from email to photo galleries. Because the hard work is done by 'the cloud' – Google's vast server farms – computers running the Chrome operating system can be cheap and low-powered. dailymail