Microprocessor: 1 .0GHz AMD Dual-Core Processor C-60
Memory: 2GB DDR3 SDRAM
Display: 15.6-inch diagonal HD BrightView LED-backlit display
Hard Drive: 320GB 5400RPM
Multimedia Drive: SuperMulti DVD Burner
Sound: HD Audio with stereo speakers
Keyboard: Full-size keyboard
Pointing Device: Touchpad supporting multi-touch gestures with on/off button
Power: 65W AC adapter/ 6-cell 47WHr 2.2 Ah lithium-ion battery
Weight: 5.22 lb
Operating System: Genuine Windows 8
Wireless Connectivity: 802.11b/g/n WLAN
This HP Compaq came out in late 2012, and some of its common issues include the speakers/sound not working, RAM and Hard drive malfunctions, and that the mouse pad will not work.
When doing research there are things you can do to help reset some of these things such as with the keypad there are ways from inside the computer that can help solve the problems.
For all troubleshooting visit the troubleshooting page