1:  Convert the following decimal values to binary:

2:  Convert the following binary values to decimal, octal, and hexadecimal:

3:  Evaluate the following expressions; assume each value is 8 bits:

4:  Evaluate the following expressions; assume each value is 8 bits:

5:  Because the ASCII code uses only the final 7 bits, sometimes it is desirable to mask off the other bits. What's the appropriate mask in binary? In decimal? In octal? In hexadecimal? 
6:  In Listing 15.2, you can replace
while (bits > 0) { mask = bitval; bitval <<= 1; } with while (bits > 0) { mask += bitval; bitval *= 2; } and the program still works. Does this ... 
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