A processor uses a serial link to communicate with a keyboard for word processing. A typist using this keyboard can type at rates peaking at 120 words per minute, where a word is 6 characters (including spaces 9600 and punctuation). The characters will be transmitted from the keyboard in 8-bit ASCII with one stop bit and no parity Only consider these and no special characters. The programmer writes setup and polling service routines based on a minimum baud rate, but then finds that the keyboard will only interface at 19.2 Kbaud. Will the polling service routine have to change? Why or why not? Baud Rates 300 600 1200 2400 4800 19200

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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A processor uses a serial link to communicate with a
keyboard for word processing. A typist using this
keyboard can type at rates peaking at 120 words per
minute, where a word is 6 characters (including spaces
and punctuation). The characters will be transmitted
from the keyboard in 8-bit ASCII with one stop bit and no parity.
Only consider these and no special characters.
The programmer writes setup and polling service routines
based on a minimum baud rate, but then finds that the
keyboard will only interface at 19.2 Kbaud. Will the polling
service routine have to change? Why or why not?
Baud Rates
300
600
1200
2400
4800
9600
19200
Transcribed Image Text:A processor uses a serial link to communicate with a keyboard for word processing. A typist using this keyboard can type at rates peaking at 120 words per minute, where a word is 6 characters (including spaces and punctuation). The characters will be transmitted from the keyboard in 8-bit ASCII with one stop bit and no parity. Only consider these and no special characters. The programmer writes setup and polling service routines based on a minimum baud rate, but then finds that the keyboard will only interface at 19.2 Kbaud. Will the polling service routine have to change? Why or why not? Baud Rates 300 600 1200 2400 4800 9600 19200
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