Final answer:
None of the listed items (CPU, GPU, RAM, HDD) is typically found on a keyboard; they are internal computer components.
Step-by-step explanation:
Of the following similar-sounding items, the one you would likely find on your keyboard is none of them, as these are all components located inside a computer or its case. A CPU (Central Processing Unit) is the main processor of a computer, a GPU (Graphics Processing Unit) handles the visual output, RAM (Random Access Memory) is used for temporary data storage, and an HDD (Hard Disk Drive) is used for long-term storage of data. Each of these plays an important role in a computer's operation, but they are not parts of the keyboard you type on.