tp

tmp

选择题

DBDAB BBCB

填空题

1.

• 1110
• E,
• !10011110(按8位算)
  
  • $100 = 64 + 32 + 4 \Longrightarrow^{二进制}0110 0010\Longrightarrow^{按位取反加1}1001 1110$
• !01100010(同上)

2.

• $4$

3.

• $255$
• $51$
  
  • $1100 1101 \Rightarrow 1100 1100 \Rightarrow 0011 0011 \Rightarrow 0\textrm{x}33 \Rightarrow 51$

4.

• 输入设备

5.

• $84$
  
  • D EFGH IJKL MNOP QRST$\ \Rightarrow\ $`D` + `16` = `T` $\ \Rightarrow\ $ $0\textrm{x}44 = 68$, $68 + 16 = 84$

6.

• !$655360$
  
  • $640 KB = 640 * 1024 B = 10 * 64 * 1024 B = 10 * 2^6 * 2^{10} B = 10 * 2^{16} B = 10 * 65536 B = 655360 B$

7.

• I don't know...二进制没有“单位”这种说法吧...进制数不都只是量纲么= =...

8.

• $A = 1010 1101$
• $B = 0111 0110$
• $A \lor B = 1111 1111$
• $A\land B=0010 0100$
• $A\oplus B = 1101 1011$