When comparing 6x13 fixed vs Courier Prime Code, the Slant community recommends 6x13 fixed for most people. In the question“What are the best programming fonts?” 6x13 fixed is ranked 37th while Courier Prime Code is ranked 113rd. The most important reason people chose 6x13 fixed is:
6x13 fixed is the apex of bitmap fonts. It has a nice, defined character set and great proportions for quantity of text onscreen, making for excellent readability. It is aesthetically pleasing for a bitmap font and has been deservedly termed 'classic'.
Specs
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Pros
Pro Well designed
6x13 fixed is the apex of bitmap fonts. It has a nice, defined character set and great proportions for quantity of text onscreen, making for excellent readability. It is aesthetically pleasing for a bitmap font and has been deservedly termed 'classic'.
Pro Legible at small sizes
At a small text size, each character has a limited resolution. A character size of 6x13 pixels means only 78 pixels per character. Modern fonts are designed to be scalable and are less legible at these small sizes. Using bitmap fonts increases legibility by eliminating scaling and sub-pixel aliasing artifacts. Some scalable fonts include "ppems" embedded bitmaps for this reason.
Pro Available on every X server
6x13 is the classic fixed monospace bitmap font that is expected to be available on every X server. It is part of the misc-fixed family. These fonts were handcrafted for readability in a terminal.
Pro Widely available
It is distributed alongside the X Window System.
Pro Even spacing
Courier Prime Code is a monospace font with adjusted Line Height.
Pro Support for standard font weights
Courier Prime supports Bold, Italics, Bold Italics, and Regular font weights.
Cons
Con Doesn't have a slashed zero
The absence of non-slashed zeroes makes it harder to distinguish "0" from the letter "O".
Con Extremely small on high-DPI screens
While it is crafted for a screen where the pixels are visible, bitmap fonts do not work well on high-DPI screens as they do not scale too well.
Con Courier Prime Code 0 (zero) is distinct from uppercase O (Oh)
In the other style, Courier Prime, the 0 (zero) is not distinct from uppercase O (Oh).