What is the i/o address for com1? A. 3e8 B. 3bc C. 5f8 D. 3f8 E. 8

3.00E+08
3bc
5f8
3f8 E. 8

The correct answer is D. 3f8.

COM1 is the first serial port on a computer. It is typically used for connecting a modem or other serial device. The I/O address for COM1 is 3f8. This means that the computer will access the COM1 port at this address.

The other options are incorrect. Option A, 3e8, is the I/O address for COM2. Option B, 3bc, is the I/O address for COM3. Option C, 5f8, is the I/O address for COM4. Option E, 8, is not a valid I/O address.