One of the decisions you'll have when choosing your netbook is the size of the display. The Acer Aspire One D255 has a 10.1" display. As with TVs and computer monitors, this is measured diagonally across the screen. Netbook screen sizes range from around 7" to around 12". While a 7" screen might sound tiny compared to your normal computer display, you'll be surprised how detailed and easy to read even the smallest netbook displays is. Netbooks with smaller displays are more portable. Netbooks with larger screens are more suited for those planning to use it for longer periouds of work. You'll need to weigh up how you'll be using your netbook and whether a smaller portable case is more important to you.
This netbook has a built-in webcam that can be used on video chat software, or to broadcast yourself on the Internet on sites like YouTube. A built in camera allows you to use software such as MSN messenger or skype to make video calls and keep in touch with friends and family anywhere there is a wi-fi connection (or using a pre-paid dongle).
This spec is to do with how your netbook will connect to the Internet in your home and at cafes and wifi 'hotspots'. The D255 netbook can connect wirelessly to a router that allows you to surf the web. Wireless-N is one of the ways that a netbook can make this connection. The others are Wireless-B and Wireless-G. Wireless-N is better than both of the afore mentioned as it allows greater speeds, and for you to be further away from the connection point and still have a good connection strength.
For example, if you were on Wireless-B you might not be able to get a signal if you were surfing in an upstairs bedroom. But it your netbook supported Wireless-N, the range would be increased and you would be able to connect. In order to take advantage of Wireless-N you'll need a netbook like this one, which is capable of using it. AND you'll also need a Wireless-N router. It's also worth noting that Wireless-N netbooks, like the Acer Aspire One D255 can still use OLDER B/G connections too.
