HP Pavilion ze4540us Laptop (2.40-GHz Celeron, 256 MB RAM, 40 GB Hard Drive, DVD/CD-RW Combo Drive) All-in-one design perfect for both educational and home use. The Pavilion ze4000 will help you discover, create, and enjoy rich multimedia, whether you're at home or off on an adventure 14.1" and 15" displays, memory of up to 1024MB, and the Athlon XP-M processors Integrated 10/100 Ethernet, a 56K V.92 modem, and integrated wireless LAN options for 802.11b and 54g Hard drives are offered at sizes up to 60GB