March 2013
Intermediate to advanced
416 pages
9h 41m
English
1. (a) 1000 equals 8;(b) 10101 equals 21.
2. (a) 64 equals 1000000;(b) 127 equals 1111111.
3. (a)
(b) 
4. (a) 14;(b) 42.
5. Decimal-10 is hex-A; decimal-15 is hex-F.
6. (a) 2F = 47;(b) E5 is 229.
7. (a) 127 is 7F;(b) 255 is FF.
8. American Standard Code for Information Interchange (ASCII) represents a character in 1 byte (8 bits) allowing for 255 separate characters including the so-called extended set from character 128 to 255. Unicode uses 2 bytes, which allows for 64K separate character representations ...