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 ASCII code for 'n' is use 'even parity', the parity bit is '1'

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 )‏ ^3 + 2^7 = => - ( ) => => - ( ) => = – = => 9

8. 2. text editor overflowed 3. overflowed (7)‏ (7)‏ (7)‏ (7)‏ (7)‏