目前的单板计算机大多数都是靠一个简易键盘和八段显示器(可能有若干个)来构成系统的输入输出部分。这种小系统一般都无法配备较高级的系统软件,如汇编语言、BASIC语言等等。初学者往往要花费不少时间来熟悉非标准的简易键盘操作方法及机器代码指令,然后才能进行实际的工作。我们在原TP801-Z80单板机的基础上进行了功能扩充,使该机能通过标准 Most of the current single-board computers rely on a simple keyboard and eight-segment display (may have a number) to form the input and output part of the system. Such a small system generally can not be equipped with more advanced system software, such as assembly language, BASIC language and so on. Beginners often spend a lot of time familiarizing themselves with non-standard, easy-to-use keyboard methods and machine code instructions before they can actually do the job. We in the original TP801-Z80 single-board machine based on the function of expansion, so that the machine passed the standard