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1. Assume that the machine described in Appendix C uses memory- mapped I/O and that the address B5 is the location within the printer port to which data to be printed should be sent. a. If register 7 contains the ASCII code for the letter A, what machine language instruction should be used to cause that letter to be printed at the printer? b. If the machine executes a million instructions per second, how many times can this character be sent to the printer in one second? c. If the printer is capable of printing five traditional pages of text per minute, will it be able to keep up with the characters being sent to it in (b)?

1. Assume that the machine described in Appendix C uses memory- mapped I/O and that the address B5 is the location within the printer port to which data to be printed should be sent. a. If register 7 contains the ASCII code for the letter A, what machine language instruction should be used to cause that letter to be printed at the printer? b. If the machine executes a million instructions per second, how many times can this character be sent to the printer in one second? c. If the printer is capable of printing five traditional pages of text per minute, will it be able to keep up with the characters being sent to it in (b)?

Computer Networking: A Top-Down Approach (7th Edition)
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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1. Assume that the machine described in Appendix C uses memory- mapped I/O and that the address B5 is the location within the printer port to which data to be printed should be sent. a. If register 7 contains the ASCII code for the letter A, what machine language instruction should be used to cause that letter to be printed at the printer? b. If the machine executes a million instructions per second, how many times can this character be sent to the printer in one second? c. If the printer is capable of printing five traditional pages of text per minute, will it be able to keep up with the characters being sent to it in (b)?
Transcribed Image Text:1. Assume that the machine described in Appendix C uses memory- mapped I/O and that the address B5 is the location within the printer port to which data to be printed should be sent. a. If register 7 contains the ASCII code for the letter A, what machine language instruction should be used to cause that letter to be printed at the printer? b. If the machine executes a million instructions per second, how many times can this character be sent to the printer in one second? c. If the printer is capable of printing five traditional pages of text per minute, will it be able to keep up with the characters being sent to it in (b)?
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