potato: an edible tuber native to South America; a staple food of Ireland
solanaceous vegetable: any of several fruits of plants of the family Solanaceae; especially of the genera Solanum, Capsicum, and Lycopersicon
buffer: (computer science) a part of RAM used for temporary storage of data that is waiting to be sent to a device; used to compensate for differences in the rate of flow of data between components of a computer system