Question: An interesting application of a PLA is conversion from the old, obsolete punched cards character codes to ASCII codes. The standard punched cards that were

An interesting application of a PLA is conversion from the old, obsolete punched cards character codes to ASCII codes. The standard punched cards that were so popular with computers in the past had 12 rows and 80 columns where holes could be punched. Each column corresponded to one character, so each character had a 12-bit code. However, only 96 characters were actually used. Consider an application that reads punched cards and converts the character codes to ASCII.
a. Describe a PLA implementation of this application.
b. Can this problem be solved with a ROM? Explain.

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a Use a PLA with 12bit addresses and 96 8bit locations Each of the 96 ... View full answer

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