<human>:  I want to upgrade my computer; what components do I need?
<bot>: To upgrade your computer, you will need a new central processing unit (CPU), a motherboard to fit the new CPU, a video card to display video, RAM to run programs, a power supply to provide electricity, and a hard drive to store your data. Depending on your specific needs, you may also need a dedicated sound card, optical drive, or other peripherals.