ASCII and Unicode for character and symbol representation

ASCII Table and Description
[04 minutes] ASCII (Binary & Digital) and Analog Representation of Data
[10 minutes] Characters in a computer - ASCII Tutorial (1/3)
[15 minutes] Characters in a computer - Unicode Tutorial (UTF-32 & UTF-16)(2/3)
[15 minutes] Characters in a computer - Unicode Tutorial UTF-8 (3/3)

Number Representation Formats

[14 minutes] Numbers in a computer-(Unsigned Integers)-Part 1 of 5
Introduces idea of signed integers i.e. positive or negative, one's complement
[17 minutes] Numbers in a computer-(Signed Integers-1)-Part 2 of 5
Twos's complement, this how to represent negative and positive integers
[13 minutes] Numbers in a computer-(Signed Integers-2)-Part 3 of 5
Real Numbers represented by FIXED Number Formats, and why they are not used in practice.
[11 minutes] Numbers in a computer-(Fixed Point)-Part 4 of 5
Floating point numbers, the realistic way for storing large and small real numbers subject to certain error.
[29 minutes] Numbers in a computer-(Floating Point)-Part 5 of 5

IEEE 754 Format

[13 minutes] IEEE 754: Intro to the Floating Point Format
[19 minutes] IEEE 754: 32 Bit Single Precision Floats
Some disasters caused by numerical errors