20.
(Continued)
Step 2. Identify the quantity (R+S) T.
a. (R+S) T-this signifies a two-input AND gate.
b. The logic AND-gate symbol with two inputs is shown below.
Step 3. Connect the output of the AND gate (step 2) to the input of the OR gate (step 1)
as shown below.
Step 4. Identify the quantity R+S.
a. R + S-this signifies a two-input OR gate.
b. The logic OR-gate symbol with two inputs is shown below.
Step 5. Connect the output of the OR-gate (step 4) to the input of the AND gate (step 3).
The completed conversion is shown below.
Convert the Boolean expression below to a logic diagram.
B+O (Y+S)
IT 0343
2-18
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