论文部分内容阅读
§4-3 键盘按健功能 APPLE Ⅱ微机的键盘布置如图4-3所示。与PC-1500微机键盘比较,大部分按键功能是相同的。下面将不同部分的按键功能加以介绍。 1.RESET键, 这是复位键,当按下此键时,停止主机工作。释放后,计算机起动一个复位过程(有些APPLE Ⅱ微机需同时按下“CTRL”键及“RESET”键时才起到复位作用)。当程序运行中发现不正常现象时,可按此键,重新开始操作。例如,未插入磁
§4-3 keyboard by health APPLE Ⅱ microcomputer keyboard layout as shown in Figure 4-3. Compared with the PC-1500 computer keyboard, most of the key functions are the same. Here are the different parts of the key features to be introduced. 1. RESET key, which is the reset button, when you press this key, stop the host. After release, the computer starts a reset process (some APPLE Ⅱ microcomputer to press the “CTRL” key and “RESET” button only play a reset effect). When the program is not found abnormal operation, press this button to restart the operation. For example, no magnet is inserted