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CTK Exchange
Lenny conrad
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Apr-16-02, 07:17 AM (EST) |
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1. "Letters A and B"
In response to message #0
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Dude: Yes, those are the representations of those two characters in what is called the ASCII code. Each character is stored in one byte of memory, and each byte is made up of eight bits. (Your string of bits for B should have a 0 in front of it.) The two strings of bits you gave are also the binary numbers 65 (A) and 66 (B). Hope this is helpful. Lenny |
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karatedude5
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Apr-17-02, 09:25 PM (EST) |
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2. "RE: Letters A and B"
In response to message #1
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Thanks that helped some. is there a code for lower case letters. And for the rest of the numbers you just add it like you would do numbers right. How does the computer no the difrents between the 66 and the A. |
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SteveSchaefer
Member since Apr-2-02
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Apr-18-02, 11:00 PM (EST) |
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3. "RE: Letters A and B"
In response to message #2
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Most machines have a character map as part of the operating system. If you are using an M$oft (Windoze) machine, it may by in your Start menu somewhere, like Programs, Accessories, System Tools. Or you can search for it. Just pull up Find Files or Folders and look for charmap.exe You can always find it on the web, too. I use https://www.bbsinc.com/iso8859.html"; >https://www.bbsinc.com/iso8859.html quite a bit just because it comes up in the search engines (and has some html information that I want). About four browser screens down from the top is a table of the printable ASCII characters and the most common extended character set. The rows and columns are in hexadecimal, which is common for character maps. Printable ASCII characters go from hex 20 up to 7E (32 to 126 in decimal). Decimal = Hex = Binary
1 = 1 = 0001
2 = 2 = 0010
3 = 3 = 0011
4 = 4 = 0100
5 = 5 = 0101
6 = 6 = 0110
7 = 7 = 0111
8 = 8 = 1000
9 = 9 = 1001
10 = A = 1010
11 = B = 1011
12 = C = 1100
13 = D = 1101
14 = E = 1110
15 = F = 1111 Two-digit hex converted to decimal is 16*char1 + char2, so A is 41 in hex, that's 16*4+1=65 in decimal. Binary is even easier. 41 in hex is 0100 0001 in binary (or you can leave the space out). Have fun. |
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