Stack (abstract data type)
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In computer science, a stack is an abstract data type that serves as a collection of elements with two main operations:
Similarly to a stack of plates, adding or removing is only practical at the top.
The programmable pocket calculator HP-42S from 1988 had, like nearly all of the company's calculators of that time, a 4-level-stack and could display two of four values of the stack registers X, Y, Z, and T at the same time due to its two-line display, here X and Y. In later models like the HP-48, the number of levels was increased to be only limited by memory size.
Motorola 68000 series
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The Motorola 68000 series is a family of 32-bit complex instruction set computer microprocessors. During the 1980s and early 1990s, they were popular in personal computers and workstations and were th
The Genesis has a 68000 clocked at 7.6 MHz as its main CPU.