All data 'in computer' are changed 'into' pulses 'by' an input 'unit'. 'No Error'.
All data 'in computer' are changed 'into' pulses 'by' an input 'unit'. 'No Error'. Correct Answer in computer
All data 'in computer' are changed 'into' pulses 'by' an input 'unit'. 'No Error'. Correct Answer in computer