5 cents (Z) 10 cents (Y) 25 cents (X) 35 cents (W)

Systems Architecture
7th Edition
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Stephen D. Burd
Chapter8: Data And Network Communication Technology
Section: Chapter Questions
Problem 10VE
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A highway toll is 35 cents, and the automatic change detector accepts nickels (5 cents), dimes (10 cents), quarters (25 cents) and 35 cent tokens. The adder below adds 1 to the state number for each 5 cents deposited. Show the required connections to the A inputs of the adder. Use OR gates where required. Show gates required to generate OPEN = 1 only when 5 or more cents are deposited.
5 cents (Z)
10 cents (Y)
25 cents (X)
35 cents (W)
A Az A, A,
B; 8, B, B,
4-bit Adder
(Sum)
->
ОPEN
Transcribed Image Text:5 cents (Z) 10 cents (Y) 25 cents (X) 35 cents (W) A Az A, A, B; 8, B, B, 4-bit Adder (Sum) -> ОPEN
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