Can the patterns that are used to represent characters represent other things in other contexts?

Yes.

# ASCII Chart

Hex   CharHex   CharHex   CharHex   Char
00   nul 20   sp 40   @ 60   `
01   soh 21   ! 41   A 61   a
02   stx 22   " 42   B 62   b
. . . . . . . . . . . .
0A   lf 2A   * 4A   J 6A   j
. . . . . . . . . . . .
1E   rs 3E   > 5E   ^ 7E   ~
1F   us 3F   ? 5F   _ 7F   del

The chart shows some patterns used in ASCII to represent characters. (See the appendix for a complete chart.) The first printable character is SP (space) and corresponds to the bit pattern `0010 0000.`

Space is a character, just like any other. Although not visible in the shortened chart, the upper case alphabetical characters appear in order A,B,C, ..., X, Y, Z with no gaps. There is a gap between upper case and lower case letters. The lower-case characters also appear in order a,b,c,...x, y, z.

The last pattern is 0x7F which is 0111 1111. This is the DEL (delete) character. For a complete list of ASCII representations, see the appendix.

### QUESTION 7:

How many of the total number of 8-bit patterns correspond to a character, (including control characters)? (Hint: look at the pattern for DEL).