operandstack

noun
UK /ˈɒpərænd stæk/
US /ˈɑːpərænd stæk/

A place where a computer keeps numbers it is working with, like a stack of cards.

The calculator pushed each number onto the operand stack before adding them.


OTHER MEANINGS

2. A memory area in a virtual machine that holds values during calculations.

The bytecode instruction popped two values from the operand stack.

3. A last-in, first-out list used by a compiler to evaluate expressions.

The compiler used an operand stack to check the order of operations.

4. A data structure in stack-based programming languages for temporary results.

In Forth, the operand stack holds numbers until a word uses them.