toaster is an appliance used to toast slices of bread. Despite the presence of replicators, toasters apparently were still in use in the 24th century.
In 2365, Captain Phillipa Louvois told Commander William T. Riker that if he refused to represent Commander Bruce Maddox in a hearing to determine whether the android Data was a sentient being or Starfleet property, she would rule summarily that Data was a toaster. (TNG: "The Measure Of A Man")
In 2377, Tom Paris and B'Elanna Torres had a toaster in their quarters on the USS Voyager. Paris used it to make peanut butter toast, his "favorite gourmet breakfast." (VOY: "Lineage") Later that year, when Torres was returned to Voyager after being brainwashed by the Quarren, Neelix showed her around her quarters to help recover her stolen memories. The toaster was one of the items Torres looked at as she walked around the room. (VOY: "Workforce, Part II")