The following is a communications device (modem) which allows an ordinary telephone to be used with a computer device for data transmission–
A. Keyboard
B. Acoustic coupler
C. Mobile phone
D. All of the above
Answer:B
The following is a communications device (modem) which allows an ordinary telephone to be used with a computer device for data transmission–
A. Keyboard B. Acoustic coupler C. Mobile phone D. All of the above