Chaper 2 Number Systems and Codes

Quiz

1、单选题:
1. Binary number: (10010111) 2 converted to Gray code: ( ? )Gray​
选项:
A: 11011110
B: 10011001
C: 11011100
D: 11011010
答案: 【 11011100

Unit Test

1、单选题:
‎Convert the decimal number 120 into binary:‏
选项:
A: 111000
B: 1111000
C: 1110110
D: 1111010
答案: 【 1111000

2、单选题:
‌Convert the fractional decimal number 16.68 into hexadecimal:‎
选项:
A: 10.BA
B: 12.CD
C: 11.EF
D: 10.AE
答案: 【 10.AE

3、单选题:
‌Convert the decimal number 38.75 into 8421BCD:‌
选项:
A: 111000.01110101
B: 00111000.01110101
C: 111000.01010111
D: 00110111.01100100
答案: 【 00111000.01110101

4、单选题:
‌The decimal number +45 is expressed in the two’s complement representation as:‏
选项:
A

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