What is computer forencis?

Computer forensics is the acquisition, extraction, and analysis of information from computer hardware and networks to assemble information for legal proceedings and for purposes of troubleshooting computer problems. The goal of computer forensics is usually to examine digital media in a forensically sound manner with the aim of identifying, preserving, recovering, analyzing and presenting facts and opinions about the information. It may also include capturing network traffic. Many different techniques and procedures are involved and the ones chosen depend on balancing speed, thoroughness, whether subject of the forensics is allowed to know about the investigation, cost, and whether the information is destined for legal proceedings.