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Intel 系统 MDS221微处理机开发系统,包括带有键盘的 CRT 显示器,8时软磁盘和行式打印机等外部设备。根据工作需要配接英国进口的 DP203型光电纸带阅读机和 FACIT4070型纸带穿孔机。MDS221系统使用8080A 芯片做 cpu,使用8741-4芯片做可编程器 PIO 接口。主机后面板有纸带阅读机 TP Reader J_5插座、纸带穿孔机 TP Punch J_4插座供用户使用。由于光电纸带阅读机和穿孔机的种类繁多,往往只简单用电缆连接、不能工作。为此用户要设计接口。
Intel System MDS221 microprocessor development system, including CRT monitors with keyboards, external devices such as floppy disks and line printers at 8 o’clock. According to the work needs with the United Kingdom imported DP203 photoelectric paper reader and FACIT4070 tape punch. MDS221 system uses 8080A chip as cpu, 8741-4 chip as programmer PIO interface. TP Reader J_5 socket for paper reader and TP Punch J_4 socket for paper punch are available on the back panel of the host computer. Due to the wide variety of optical paper readers and punches, they are often simply cabled and can not work. To this end the user to design the interface.