For what purpose the port 61H is used-00394
This subjective question is related to the book/course vu cs201 Introduction to Programming. It can also be found in vu cs201 Mid Term Solved Past Paper No. 9.
Question 1: For what purpose the port 61H is used
Answer:
The port 61h is used to control the speaker only the least significant 2 bits are important. Bit 0 is used to connect the interval timer to the speaker and the bit #1 is used to turn the speaker on off. Rest of the bits are used by other devices.