A technician is installing a printer that uses a parallel cable to connect to a computer. Which of the following pin configurations might the technician encounter？ （）
A: 9 pin D-type
B: 36 pin Centronics
C: 25 pin Centronics
D: 13 pin D-type
E: 25 pin D-type
A: 9 pin D-type
B: 36 pin Centronics
C: 25 pin Centronics
D: 13 pin D-type
E: 25 pin D-type
举一反三
- 从“Waiting for PIN”与“Validating PIN”之间的转换需要经过（ABCD）事件 A: PIN Entered B: Validate PIN C: Invalid PIN D: Invalid PIN Prompte
- PIN码的管理状态不包括：（） A: PIN输入状态 B: PIN输入成功状态 C: PIN未输入或输入错误状态 D: PIN锁住状态
- Arduino怎么将引脚设置为输出。 A: pinMode(pin,OUTPUT) B: pinMode(pin,INPUT) C: digitalWrite(pin,HIGH) D: analogWrite(pin,num)
- Arduino怎么将引脚设置为低电平。 A: digitalWrite(pin,HIGH) B: pinMode(pin,INPUT) C: digitalWrite(pin,LOW) D: analogWrite(pin,num)
- Which of the following statements about the light-emitting diode is correct？ A: The long pin is positive and the short one is negative. B: The long pin is negative and the short one is positive. C: Independent of pin length D: Unable to determine