All-in-one desktops are built to save space, with all the components including speakers, fitted into the screen. These machines are perfect if you have limited space or simply want a compact, tidy and sleek-looking workspace.

Many all-in-one PCs also have a touchscreen interface for a truly unique home computing experience that’s also great for small children to play and learn on. Many have spectacular HD screens and can double as a television where space is limited.

As they are smaller sized machines, the processors and graphics aren’t as high-powered as they are in tower desktop PCs, but they can still be powerful machines if you need them to be.

Unrestrained by battery life or portability, desktop computers can pack immense functionality, power and storage into these tower designs. The most powerful type of computer available, desktops also offer bigger screens and more comfort than laptops with their separate monitor, keyboard and mouse.

Probably the most enticing feature of desktops is the ability to upgrade the internal components depending on your needs. This means your desktop could last a very long time and the performance can always be improved if you should require more memory, storage, optical drives or graphics.

There are also low-cost computer accessories available for connecting your PC to your television for watching internet or stored videos on a bigger screen.

Regular laptops provide a good all-round computing experience and can act as a convenient and powerful replacement for bulky desktop computers. With strong processing, good internal storage and entertainment features like big screens and built-in graphics, there is a laptop model to suit all needs.

If you’re looking for a gaming laptop pay attention to the graphics specification; and if you’re looking for a desktop replacement you may want to consider good internal storage for your digital data.

Most new laptops will have built-in WiFi, a CD or DVD optical drive and plenty of connectivity options for linking up to your PC peripherals like memory cards and even your TV for watching internet or stored videos on your big screen.

Ideal for everyday use, laptops offer a good balance between portability, price and performance.

As the name suggest, ultra-mobile laptops are smaller, lighter and faster than regular laptops, making them perfect for the travelling business-user who needs an extremely portable, high-powered machine.

Due to their size these laptops may lack USB ports and other types of connection points for linking to your computer peripherals and TV. They also don’t contain built-in CD or DVD drives like most regular laptops do.

However, most ultra-mobile laptops will have built-in internet connections like WiFi and a webcam for video-conferencing or chatting with family and friends.

Inspired by Intel, the Ultrabook™ is the very latest in ultra-mobile laptops, with a sleek, sexy style that possesses the wow-factor.

At less than an inch thick, the Ultrabook is readily transportable, offering superb lightweight design and lengthy battery life for the business user who wants instant access to their work and programs.

With a 2nd generation Intel® Core™ Processor, the Ultrabook™ wakes up in an instant when you turn it on, offering immediate usage wherever you are, making for exciting and intuitive computing.

The Ultrabook's™ built-in visuals and smart multitasking offers the performance and capabilities you would hope with an Intel product, but may be neglectful in the form of an optical drive or a smaller hard drive, however this could be potentially combated with SD card capabilities.

For sophisticated online interaction and nothing else, the Chromebook is ideal for the keen Internet user, with a rapid boot-up time of 8 seconds you can be connected to the web for immediate browsing and communication.

A novel take on the normal laptop, the Chromebook is purely an Internet browser and does not have a desktop, an operating system or anything else installed other than Flash, but you will be amazed at what you can achieve.

Your apps, documents, and settings are stored safely in the Chromebook's online cloud, so even if you lose your computer, you can just log in to another Chromebook and get right back to work.

The Internet is in the palm of your hand as you surf freely, without any unwanted interruptions from elsewhere like virus protection and even the updates are automatic!

However, you will require a WiFi hotspot to connect or a 3G signal through a SIM card through a mobile phone company as you consider whether it is worth paying for 3G if you are likely to have WiFi connectivity a lot of the time.

For the latest in technology and the idea of an Internet only laptop, the Chromebook is the next exciting chapter in laptop innovation.

What the netbook lacks in power and features compared to a laptop, it makes up for in portability and price. The smallest laptops available, netbooks are perfectly designed for travel. With their super-lightweight frames and low cost, they are great for browsing and staying connected on the go.

Some netbooks have more travel-friendly features like webcams for video-chatting with your friends and family while you’re away and built-in WiFi for internet access on the move. However, netbooks generally don’t have very impressive graphics and don’t have optical CD/DVD drives built in due to their size.

A tablet is a slim, portable, touchscreen personal computer designed for activities like web browsing, playing games, social networking, enjoying your multimedia and accessing email.

Most tablet PCs have one or two webcams (front and rear-facing) to enable video-chat and/or video recording; and built-in WiFi so you can connect to the internet at home or in public hotspots and even connect to other devices. However, if you want to stay online while on the move, 3G is the best option.

If you want to be sure you can view all websites on your tablet, be sure to get one that’s flash-compatible, otherwise your browsing will be limited to non-flash websites.