Most people have passwords that are alphanumeric or, in the case of a security-conscious individual, alphanumeric with the addition of other keyboard symbols. 大多数人拥有字母数字式密码,或者有安全意识的人,拥有附带其他键盘符号的字母数字式密码。
A number of CRT's displays have been created, to be used specifically as computer terminals. A terminal containing less than a full alphanumeric keyboard; for example, one containing ten numeric keys plus control keys. 现在已出现了许多字符(CRT)显示器,专门用作计算机的终端设备。一种终端,它的键盘不包括全套的字母数字字符键;例如,只包括十个数字键以及若干控制键。
A terminal containing less than a full alphanumeric keyboard; for example, one containing ten numeric keys plus control keys. 一种终端,它的键盘不包括全套的字母数字字符键;例如,只包括十个数字键以及若干控制键。