IBM 1725 SLS Manuel D’Utilisation

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Typography
Terms
QMS 1725 SLS Print System User's Guide
7-4
Typography Terms
Monospacing
The terms “monospaced” and “fixed-pitch” refer to a typeface whose 
characters all have uniform and equal spacing. These typefaces are 
useful for spreadsheets and other documents with columnar data. 
Monospacing is the opposite of proportional spacing.
Proportional Spacing
The term “proportionally spaced” refers to a typeface in which the 
width of each character varies. For example, the letter “i” is thinner 
than the letter “m” and therefore takes up less space. Proportional 
spacing saves page space and is easier on the eye. This manual’s 
text uses the Helvetica font, a proportionally spaced typeface. 
Pi or Symbol
Pi or symbol typefaces are 
collections of assorted special-
purpose characters (for example, 
decorative, graphic, math, or 
monetary characters). They are 
especially useful for highlighting
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items in lists, providing graphics, and displaying symbols that might 
otherwise have to be drawn in by hand. Many typefaces today include 
a complement of the more commonly used pi characters. Symbol and 
ITC Zapf Dingbats are pi typefaces.
Because proportionally spaced type-
faces place each character accord-
ing to its individual size, they 
increase legibility and readability.This 
example shows the difference 
between a monospaced typeface (Courier) and a typeface (Times).
alphabet
alphabet