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1) Can you describe the Byte data type ?
The Byte data type is used to store positive integer numbers.
The range is 0 to 255.
The size of this data type is 1 byte (8 bits).

Dim myByte As Byte 
myByte = 0 
myByte = 255 

2) Can you describe the Integer data type ?
The Integer data type is used to store integer numbers.
The range is -32,768 to 32,767.
The maximum value is (2^15) - 1 = 32767.
The size of this data type is 2 bytes (16 bits).

Dim myInteger As Integer 
myInteger = -32768 
myInteger = 32767 

3) Can you describe the Long data type ?
The Long is used to store integer numbers.
The range is -2,147,483,648 to 2,147,483,647.
The maximum value is (2^31) - 1 = 2147483647.
The size of this data type is 4 bytes (32 bits).

Dim myLong As Long 
myLong = -2147483648 
myLong = 2147483647 

4) Can you describe the Single data type ?
The Single data type is used to store single precision floating point real numbers.
This can hold large numbers but with very little precision up to 7 significant figures.
The smallest value is -3.402823 E+38.
The largest value is 3.402823 E+38.
The size of this data type is 4 bytes (32 bits).

Dim mySingle As Single 
mySingle = -3.402823E+38 
mySingle = 3.402823E+38 

5) Can you describe the Double data type ?
The Double is used to store double precision floating point real numbers.
This can hold very large numbers with good precision up to 15 significant figures.
The smallest value is -1.79769313486231 E+308.
The largest value is 1.79769313486231 E+308.
The size of this data type is 8 bytes (64 bits).

Dim myDouble As Double 
myDouble = -1.79769313486231E+308 
myDouble = 1.79769313486231E+308 

6) What is the difference between Fixed Point and Single/Double Floating Point ?
Both are represented in binary (base 2).
Floating point data types support fewer significant digits than fixed point data types (decimal) but can represent larger or smaller numbers.