What actions should you take to keep your computer functioning well? Check all that apply. Back up your work and files onto an external hard drive.
Remove unwanted files from the computer.
Use old virus scanning software to check for viruses.
Keep Internet browsing history logged in the computer.
Scan for viruses regularly.

Dereck works for long hours on his computer.  he frequently experiences physical strain by the end of the day because he does not follow an important rule of ergonomics with respect to the use of keyboards.  which of the following actions of dereck could lead to physical strain? a.  placing the keyboard exactly in front of him while typingb.  keeping hands and wrists straight while typingc.  using wrist pads throughout the dayd.  pounding at the keys on the keyboard while typinge.  resting his hands on the keyboard when he is not typing