I need to install the drivers for those devices. Basically there is Software & Driver Downloads page for the Compaq Presario CQ42-270TU MediaSmart Webcam Software, Graphics VGA Driver Intel Graphics Media Accelerator (GMA) 4500M, Wireless Assistant
This tutorial will show you how to install Wifi RTL8191SE driver for Linux kernel 2.6.X on Slackware 13.1. It also should be applicable to any Linux distros such as Redhat, Fedora, Ubuntu, Mandriva, OpenSUSE , etc running kernel 2.6.X
I just bought a new notebook, a brand new Compaq Presario CQ42-270TU, without any operating system installed, just a default FreeDOS. It is definitely a notebook with Intel® Core™ i5-450M Processor (2.40 GHz, Cache 3 MB) , 2 GB DDR3 SODIMM PC-10600, and Intel GMA 4500M manufactured by HP in around July and August 2010.