1. Using 8-bits, convert -45 to excess-127 notation in binary
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
1. Using 8-bits, convert -45 to excess-127 notation in binary.
2. If 1001 0110 is a binary number in excess-127 form, what is the decimal number?
3. Convert 97 to sign magnitude form using 8 bits.
4. Convert -97 to sign magnitude form using 8 bits.
5. Convert -97 to one’s complement form using 8 bits.
6. Convert -89 to two’s complement form using 8 bits.
7. If 1001 0111 is in two’s complement form, what is the decimal number?
8. Using two’s complement form with 8 bits, perform the following arithmetic.
a. Add 34 and 27
b. Add 78 and 64
c. Subtract 45 from 78
d. Subtract -45 from 78
e. Subtract 45 from -78
f. Subtract -45 from -20
9. Convert -123.6875 to IEEE format.
10. Convert 458D A600 from IEEE format to decimal form.

Transcribed Image Text:1. Using 8-bits, convert -45 to excess-127 notation in binary.
2. If 1001 0110 is a binary number in excess-127 form, what is the decimal number?
3. Convert 97 to sign magnitude form using 8 bits.
4. Convert -97 to sign magnitude form using 8 bits.
5. Convert -97 to one’s complement form using 8 bits.
6. Convert -89 to two's complement form using 8 bits.
7. If 1001 0111 is in two's complement form, what is the decimal number?
8. Using two's complement form with 8 bits, perform the following arithmetic.
а.
Add 34 and 27
b.
Add 78 and 64
Subtract 45 from 78
Subtract -45 from 78
с.
d.
Subtract 45 from -78
f.
е.
Subtract -45 from -20
9. Convert -123.6875 to IEEE format.
10. Convert 458D A600 from IEEE format to decimal form.
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