3) The popular Centronics printer interface is a case where byte- serial transmission is used.广为流行的并行打印机接口就是一个使 用字节串行传输的例子。 简介: Centronics,称并口,也有称之为EEE1284,是目前外部设备 与电脑连接常见的接口类型之一,另外还有其他接口类型包括:串口 (也有称之为RS-232接口的)和UsB接口。 4)If two electrical transitions were required for each bit, as is the case in non-return-to-zero coding, then at a rate of 9600 baud,only4800 bits per second could be conveyed.如果每位数 需要经过两次电子转换,就象非归零编码时所需要的那样,那么以 9600波特速度,每秒就只能传送4800位。 注释: If two electrical transitions were.是虚拟条件从句,表示对 某种情况的假设;习惯用语 as is the case in…,意思是“这与…的 情况一样”,在整句中作插入语,补充说明前文 two electrical transitions were required for each bit 2021/2/20 P32021/2/20 P.3 3) The popular Centronics printer interface is a case where byte￾serial transmission is used. 广为流行的并行打印机接口就是一个使 用字节串行传输的例子。 简介： Cenronics,称并口，也有称之为IEEE1284，是目前外部设备 与电脑连接常见的接口类型之一，另外还有其他接口类型包括：串口 （也有称之为RS-232接口的）和USB接口。 4) If two electrical transitions were required for each bit, as is the case in non-return-to-zero coding, then at a rate of 9600 baud, only 4800 bits per second could be conveyed. 如果每位数 需要经过两次电子转换，就象非归零编码时所需要的那样，那么以 9600波特速度，每秒就只能传送4800位。 注释： If two electrical transitions were …是虚拟条件从句,表示对 某种情况的假设; 习惯用语as is the case in…，意思是“这与……的 情况一样”，在整句中作插入语，补充说明前文two electrical transitions were required for each bit