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Section 7.1 Digital Representation of Characters
How are characters (letters and symbols) stored in the computer’s memory?
In this next video you’ll find out.
Aside: Video Description.
Each character (a, b, ..., A, B, ...), number (0-9), and symbol (*,&!%@) is represented by a 1-byte code:
ASCII code for
X is 88. In HEX:
0x58
In binary, the character
X is represented in memory by 1 byte (8 bits): 01011000
Check Your Understanding Check Your Understanding
1.
Find the 8-bit binary representation of the letter
a (lower case), if the ASCII code is used, as described in the video.
-
01100001
-
Correct!
-
10010111
-
Not quite - try again!
-
01100101
-
Not quite - try again!
-
00100000
-
Not quite - try again!
Hint.
Look at the above table and convert the hexadecimal code into binary.
