Original sentence: They omit from the laptop its CDROM and often its ethernet port because they are optimized for size, weight, and cost; they even leverage the investment in server farms.Walt Mossberg called netbooks a "relatively new category of small, light, minimalist and cheap laptops
Edited sentence: A netbook will omit the laptop's CDROM and often its ethernet port because netbooks are optimized for size, weight, and cost; they even leverage the investment in server farms.Walt Mossberg calls them a "relatively new category of small, light, minimalist and cheap laptops