1. A storage which works as though it comprised a number of registers arranged in a column, with only the register at the top of the column connected to the rest of the storage. Each word in turn enters the top register and is then “pushed down” the column from register to register to make room for the next words to arrive. As the words are transferred out of the storage units, from the top register other data in storage moves back up the column from register to register to fill the space vacated.
2. 后进先出存储区，堆栈
3. 后进先出存储区，堆栈
语源
Middle English (in the general sense 'storeroom'): from Old French celier, from late Latin cellarium 'storehouse', from cella 'storeroom or chamber'
