Final answer:
The assembling of necessary hardware and software for an incident investigation takes place during the Preparation phase of the incident response process in the field of Computers and Technology.
Step-by-step explanation:
Assembling the hardware and software required to conduct an incident investigation would occur in the Preparation phase of the incident response process. This phase is crucial, as it involves establishing the tools, team, procedures, and communication channels that will be used throughout the incident handling. Moreover, the Preparation phase sets the groundwork for organizations to be able to effectively respond to an incident when it occurs.