QMS 2060, Reference

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A scalable font is one in which each character’s dot pattern (bitmap) is
generated from a mathematical representation (or outline) of the
character. Scalable fonts eliminate the need to store many different
font sizes.
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Point size refers to the height of a proportionally spaced typeface. A
point is a unit of measure approximately equal to
1
/
72
". Therefore, the
larger the point size, the larger the letter. The following example
shows characters in 8, 10, 12, 24, and 36 point sizes:
A
B
C
D
E
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A bitmapped font is one in which each
character is represented by a set of dot
patterns. Each font size requires a different
set of dot patterns.
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Pitch refers to the number of characters per horizontal inch (cpi) in a
monospaced typeface. Therefore, the larger the pitch, the smaller the
letter. For example, a ten-pitch typeface
prints ten characters per inch (or 10 cpi)
while a twelve-pitch typeface prints
twelve characters per inch (or 12 cpi).
The example shows ten-pitch and twelve-
pitch Courier.
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