number Specifies the number of stacks (0 or 8 to 64) that are to be set aside for hardware interrupts.
No Dos is still used in many things today. Many programs are Windows Only due to them using Dos Files.
Accessing a stack.
Stack pointer points to the topmost / most recently referenced location on the stack; - Nutan
That depends on how many is in a stack
There is exactly 52 cards in a normal stack.
The stack register contains the address of the last item pushed on the stack. The stack is a region of memory used for temporary storage of instruction addresses and register values in a Last-In-First-Out (nested) structure. It is used for interrupts and subroutine calls.
There are two types of plumbing stacks: A stack vent and a soil or waste stack.
dos(disk operating system) it is used to run older programs and junk
DOS is not used at any time in any modern operating system.
It depends on how many cubes in the stack and what shape they form.
DOS was discontinued when Windows 95 got relased (1995)
Yes it is used to comment Dos line