this is for blue one
The Acer Aspire One D250-0Bb is a 10.1" slim and stylish blue netbook that's only 1" thick. Features include an Intel® Atom™ N450 processor, 1GB RAM, 160GB hard drive and integrated sound card. The AOD250 has a 10.1" bright LED screen and battery life of up to 6 hours. Includes Windows® 7 Starter Edition.
N270 CPU not N450 as Tesco description suggests (features tab has the correct details however).