Power - on - self - test immediately , use cv - 61d card read bios check point value , compare 80h port position digit code with bios error code message , will know defective position 于是利用本卡读取bios检查点check point之值,再将本卡80h port位置数字显
When this larger message is sent through the air or some other noisy environment , a few of the bits in the coded message may be garbled ( some 1s are turned into 0s and vice versa ) 当这个较长的讯息透过空气或是其他有杂讯的环境传送时,编码里的一些位元可能被弄乱(有些1变成0 ,或是倒过来) 。