Answer:
Hardware.
Explanation:
John is operating with Internal Computer Professionals, an organization committed to assisting sector owners to overcome MIS technology problems. John's duties include maintaining and repairing motherboards, wires, and parts of inner devices including DVDs and hard disks. Although John's appointed for hardware fixation.
I will attach the answers below. The number of characters is beyond the default characters required.
Because these devices do not require the repetitive motion that cause the damages.
True. It was a project that the pentagon was working on in the 60's