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1. 1. ALU = Arithmetic Logic Unit 2. ASCII = American Standard Code for Information Interchange

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1. 1. ALU = Arithmetic Logic Unit 2. ASCII = American Standard Code for Information Interchange - PowerPoint PPT Presentation


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1. 1. ALU = Arithmetic Logic Unit 2. ASCII = American Standard Code for Information Interchange 3. CPU = Central Processing Unit 4. EEPROM = Electrically-Erasable Programmable Read-Only Memory 5. IEEE = Institute of Electrical and Electronics Engineers

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Presentation Transcript
slide1

1.

1. ALU = Arithmetic Logic Unit

2. ASCII = American Standard Code for Information Interchange

3. CPU = Central Processing Unit

4. EEPROM =

Electrically-Erasable Programmable Read-Only Memory

5. IEEE = Institute of Electrical and Electronics Engineers

6. DRAM = Dynamic Random Access Memory

7. CD-R = Compact Disc-Recordable

8. CD-ROM = Compact Disc Read-Only Memory

9. SCSI = Small Computer System Interface

10. USB = Universal Serial Bus

2.

01101110

3.

ASCII code for 'n' is 01011110

use 'even parity', the parity bit is '1'

slide2

4.

According to ray spectroscopy, the wavelength of the blue laser is shorter than the infrared laser.

5.

The drive uses a medium-power laser beam to change pits to lands.

The beam changes a location from the amorphous state to the

crystalline state. refer to textbook(p113)‏

6.

(28*1024*1024*8)/(56*1024) = 4096 (seconds)‏

4096 秒(68分16秒)‏

7.

1. 2^3 + 2^7 = 136

2. - 8

3. 10001000 => - (01110111) => -182

4. 10001000 => - (01111000) => -120

5. 127 = 01111111

10001000 – 01111111 = 00001001 => 9

slide3

8.

2. text editor

9.

1. 0110

2. overflowed

3. overflowed

4. 0110

5. 1111

10.

1. 40(7)‏

2. 145(7)‏

3. 121(7)‏

4. 202(7)‏

5. 1024(7)‏

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