Question 1

In a sign- magnitude format, a "1" in the sign bit position indicates the number is negative.

Accepted Answer

A) True 
 B)False

Question 2

What is the decimal equivalent of the 2's complement signed number 10110?

Accepted Answer

A)  8 
B)  - 5 
C)  10 
D)  - 10 
A)  8 
B)  - 5 
C)  10 
D)  - 10

Question 3

The operations of addition and subtraction of signed binary numbers may be accomplished with parallel full- adders, provided that:

Accepted Answer

A)  negative numbers are represented in 2's- complement form and a means is provided to take the 2's- complement of the minuend in subtraction problems. 
B)  negative numbers are represented in 2's- complement form and a means is provided to take the 2's- complement of the subtrahend in subtraction operations. 
C)  negative numbers are represented in 2's- complement form and a means is provided for taking the 2's- complement of the minuend and the subtrahend in subtraction problems. 
D)  positive numbers are represented in 2's- complement form and a means is provided to take the 2's- complement of the minuend in subtraction problems. 
A)  negative numbers are represented in 2's- complement form and a means is provided to take the 2's- complement of the minuend in subtraction problems. 
B)  negative numbers are represented in 2's- complement form and a means is provided to take the 2's- complement of the subtrahend in subtraction operations. 
C)  negative numbers are represented in 2's- complement form and a means is provided for taking the 2's- complement of the minuend and the subtrahend in subtraction problems. 
D)  positive numbers are represented in 2's- complement form and a means is provided to take the 2's- complement of the minuend in subtraction problems.

Question 4

The problem (F7916 - BA416) is performed using 2's- complement arithmetic. Which of the following correctly illustrates the problem?

Accepted Answer

A)  086 + BA4 = C4A 
B)  F79 - BA4 = 365 
C)  F79 + 45C = 3D5 
D)  086 + 45C = 5E2 
A)  086 + BA4 = C4A 
B)  F79 - BA4 = 365 
C)  F79 + 45C = 3D5 
D)  086 + 45C = 5E2

Question 5

Which of the following represents the 2's- complement representation for +9310?

Accepted Answer

A)  00100010 
B)  11011101 
C)  10100010 
D)  01011101 
A)  00100010 
B)  11011101 
C)  10100010 
D)  01011101

Question 6

In using the 2's- complement system of subtraction, a negative number in the subtrahend would ultimately be changed to:

Accepted Answer

A)  a negative number in true binary form. 
B)  a positive number in true binary form. 
A)  a negative number in true binary form. 
B)  a positive number in true binary form.

Question 7

The result of any arithmetic operations performed by the ALU is immediately stored in the:

Accepted Answer

A)  memory unit. 
B)  A register. 
C)  control unit. 
D)  B register. 
A)  memory unit. 
B)  A register. 
C)  control unit. 
D)  B register.

Question 8

The following is a 2's- complement signed binary number: 100000000. What is its decimal value?

Accepted Answer

A)  - 25510  
B)  - 25610  
C)  - 12810  
D)  - 010 
A)  - 25510  
B)  - 25610  
C)  - 12810  
D)  - 010

Question 9

The 5- bit 2's- complement of - 1210 is:

Accepted Answer

A)  10100 
B)  01100 
C)  00100 
D)  11100 
A)  10100 
B)  01100 
C)  00100 
D)  11100

Question 10

The carry propagation delay in full- adder circuits:

Accepted Answer

A)  decreases in a direct ratio to the total number of FA stages. 
B)  is cumulative for each stage and limits the speed at which arithmetic operations are performed. 
C)  increases in a direct ratio to the total number of FA stages but are not a factor in limiting the speed of arithmetic operations. 
D)  is normally not a consideration because the delays are usually in the nanosecond range. 
A)  decreases in a direct ratio to the total number of FA stages. 
B)  is cumulative for each stage and limits the speed at which arithmetic operations are performed. 
C)  increases in a direct ratio to the total number of FA stages but are not a factor in limiting the speed of arithmetic operations. 
D)  is normally not a consideration because the delays are usually in the nanosecond range.

Question 11

In the expression 4- 2, 4 is the_____ .

Accepted Answer

The answer of In the expression 4- 2, 4 is...

Question 12

When adding numbers in the 2's complement system, always carry the sign bit.

Accepted Answer

A) True 
 B)False

Question 13

What is the decimal value of the 2's- complement signed binary number 110101101?

Accepted Answer

A)  +l7410  
B)  +8310  
C)  - 8310  
D)  - 17410 
A)  +l7410  
B)  +8310  
C)  - 8310  
D)  - 17410

Question 14

The number - 710 is to be stored in an 8- bit register as a signed binary number in 2's- complement form. Which of the following represents the register contents?

Accepted Answer

A)  10000111 
B)  01111001 
C)  11111001 
D)  00000111 
A)  10000111 
B)  01111001 
C)  11111001 
D)  00000111

In a sign- magnitude format, a "1" in the sign bit position indicates the number is negative.

What is the decimal equivalent of the 2's complement signed number 10110?

The operations of addition and subtraction of signed binary numbers may be accomplished with parallel full- adders, provided that:

The problem (F79₁₆- BA4₁₆) is performed using 2's- complement arithmetic. Which of the following correctly illustrates the problem?

Which of the following represents the 2's- complement representation for +93₁₀?

In using the 2's- complement system of subtraction, a negative number in the subtrahend would ultimately be changed to:

The result of any arithmetic operations performed by the ALU is immediately stored in the:

The following is a 2's- complement signed binary number: 100000000. What is its decimal value?

The 5- bit 2's- complement of - 12₁₀is:

The carry propagation delay in full- adder circuits:

In the expression 4- 2, 4 is the_____ .

When adding numbers in the 2's complement system, always carry the sign bit.

What is the decimal value of the 2's- complement signed binary number 110101101?

The number - 7₁₀is to be stored in an 8- bit register as a signed binary number in 2's- complement form. Which of the following represents the register contents?

Introductory Concepts

Number Systems and Codes

Describing Logic Circuits

Combinational Logic Circuits

Flip-Flops and Related Devices

Counters and Registers

Integrated-Circuit Logic Families

MSI Logic Circuits

Digital System Projects Using HDL

Interfacing With the Analog World

Memory Devices

Programmable Logic Device Architectures

Filters

Exam 6: Digital Arithmetic: Operations and Circuits

In a sign- magnitude format, a "1" in the sign bit position indicates the number is negative.

What is the decimal equivalent of the 2's complement signed number 10110?

The operations of addition and subtraction of signed binary numbers may be accomplished with parallel full- adders, provided that:

The problem (F7916 - BA416) is performed using 2's- complement arithmetic. Which of the following correctly illustrates the problem?

Which of the following represents the 2's- complement representation for +9310?

In using the 2's- complement system of subtraction, a negative number in the subtrahend would ultimately be changed to:

The result of any arithmetic operations performed by the ALU is immediately stored in the:

The following is a 2's- complement signed binary number: 100000000. What is its decimal value?

The 5- bit 2's- complement of - 1210 is:

The carry propagation delay in full- adder circuits:

In the expression 4- 2, 4 is the_____ .

When adding numbers in the 2's complement system, always carry the sign bit.

What is the decimal value of the 2's- complement signed binary number 110101101?

The number - 710 is to be stored in an 8- bit register as a signed binary number in 2's- complement form. Which of the following represents the register contents?

Introductory Concepts

Number Systems and Codes

Describing Logic Circuits

Combinational Logic Circuits

Flip-Flops and Related Devices

Counters and Registers

Integrated-Circuit Logic Families

MSI Logic Circuits

Digital System Projects Using HDL

Interfacing With the Analog World

Memory Devices

Programmable Logic Device Architectures

Filters

The problem (F79₁₆- BA4₁₆) is performed using 2's- complement arithmetic. Which of the following correctly illustrates the problem?

Which of the following represents the 2's- complement representation for +93₁₀?

The 5- bit 2's- complement of - 12₁₀is:

The number - 7₁₀is to be stored in an 8- bit register as a signed binary number in 2's- complement form. Which of the following represents the register contents?