Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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FIGURE 02
Q.6
For the circuit in Figure 02 , assume the inputs are Add/Subt. = 1, A =1010, and B = 1101. What is the output?
The input waveforms in Figure 03 are applied to a 2-bit adder. Determine the waveforms for the sum and the output
carry in relation to the inputs by constructing a timing diagram.
Q.7
A1
A2
B1
B2
Cin
FIGURE 03
Q.8
The following sequences of bits (right-most bit first) appear on the inputs to a 4-bit parallel adder. Determine the
resulting sequence of bits on each sum output.
A1
A2
1010
1100
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Transcribed Image Text:FIGURE 02 Q.6 For the circuit in Figure 02 , assume the inputs are Add/Subt. = 1, A =1010, and B = 1101. What is the output? The input waveforms in Figure 03 are applied to a 2-bit adder. Determine the waveforms for the sum and the output carry in relation to the inputs by constructing a timing diagram. Q.7 A1 A2 B1 B2 Cin FIGURE 03 Q.8 The following sequences of bits (right-most bit first) appear on the inputs to a 4-bit parallel adder. Determine the resulting sequence of bits on each sum output. A1 A2 1010 1100
For the parallel adder in Figure 01, determine the complete sum by analysis of the logical operation of the
1 0
circuit. Verify your result by longhand addition of the two input numbers.
1 0
Q.4
0 1
1 1
0 1
А В С
A B Cin
A B Cin
A B Cin
А В Ст
Σ
Cout
Σ
Cout
Σ
Cot
Σ
Cout
Σ
Cout
FIGURE 01
The circuit shown in Figure 02 is a 4-bit circuit that can add or subtract numbers in a form used in computers (positive
numbers in true form; negative numbers in complement form). (a) Explain what happens when the Add/Subt. input is
HIGH. (b) What happens when Add/Subt. is LOW?
Q.5
A, Bo
Aj B1
A, B2
Az B3
Add/Subt.
A B Cin
A B Cin
A B Cin
A B Cin
Σ
Cout
Cou
Σ
Cout
Σ
Cout
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Transcribed Image Text:For the parallel adder in Figure 01, determine the complete sum by analysis of the logical operation of the 1 0 circuit. Verify your result by longhand addition of the two input numbers. 1 0 Q.4 0 1 1 1 0 1 А В С A B Cin A B Cin A B Cin А В Ст Σ Cout Σ Cout Σ Cot Σ Cout Σ Cout FIGURE 01 The circuit shown in Figure 02 is a 4-bit circuit that can add or subtract numbers in a form used in computers (positive numbers in true form; negative numbers in complement form). (a) Explain what happens when the Add/Subt. input is HIGH. (b) What happens when Add/Subt. is LOW? Q.5 A, Bo Aj B1 A, B2 Az B3 Add/Subt. A B Cin A B Cin A B Cin A B Cin Σ Cout Cou Σ Cout Σ Cout
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