Remember Netbooks! I have an Asus Eee PC 901 with Intel Atom. Thus, a slow case I never saw, from the beginning! The part is not even suitable for surfing the Internet.
I have finally bought a Sony VAIO SR59 VGH. As a 13 “version also very mobile and especially useful.
You buy a computer magazine, will be tested in the netbooks or online shopping for tests. Z. as computer screen get so much more …
To the USB port you can connect a UMTS Stick.
Make sure that you order a large battery and replace if necessary, the hard drive with a SSD.
A colleague of mine has a Netbook from Dell and surfs to 6 hours at a stretch.