He's created a way for people to use an older model computer as a "virtual desktop," outsourcing its processing power, memory and operating system to another piece of equipment located down the hall.
A programmable read-only memory microchip (PROM) serves to store the initial start-up program for a computersystem and is built to withstand the conditions present in outer space.
可编程只读存储芯片用于存储计算机系统的初始启动程序，它被设计成可以承受目前外太空的环境状况。
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I chose 256mb on my system, but your choice may vary depending on what kind of free memory you have on your computer.