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.
Each character (a, b, ..., A, B, ...), number (0-9), and symbol (*,&!%@) is represented by a 1-byte code:
Figure 7.1. ASCII Table (Bronson, Appendix B)Example:
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.
