Talking about the computer font

The font is small, but it is everywhere. Every day we turn on the computer and pull out the phone, we can see different forms of fonts. and computers and mobile phones and other equipment screen quality materials, how to make the font in a variety of on-screen clear and beautiful display, but is a subject to be reckoned with.

We know that the display has a lot of glowing points (at least it looks like a glowing point), a light and shade, different colors of the luminous points to make a display of various content of the screen. Since the dots on the screen can make up a variety of patterns, then of course you can also use these points to arrange the text to display a variety of fonts. This sounds as simple as it was originally thought, so simply using a dot matrix to display computer fonts.

Dot Matrix Font

Lattice font is the essence of the picture, with the point of the actual situation to describe the character contour. People use a picture to represent a character and provide each character with four variants, normal, bold, italic, and bold italic. So people made a variety of pictures for each letter, simple to achieve the display of fonts. This is really very simple, do not draw the characters to the picture, please a temporary, less than a few days to complete the English alphabet, is simply the perfect collaboration between human resources and High-tech.

Human resources are always available.

But it soon became clear that this was not a reliable one. The dot matrix font is a picture, which means that these pictures are of the size size. When people try to enlarge the dot matrix font, the characters are mosaic. This is a dot-matrix font of the problem-lattice fonts are difficult to scale, each character can only clearly display a specific font size, amplification will be hit code, narrowing will break. Face full screen mosaic and messy strokes, we have expressed that can not accept.

Mosaic hinders the progress of human civilization

Mathematics saved the world, and vector fonts were born. People use mathematical equations to describe strokes, separating the characters into several key points and connecting them with smooth curves. These curves can be uniquely determined with a finite number of parameters, which can be magnified to reduce each character without prejudice. Adobe (well, the one that sells Photoshop) presented a set of vector-font-standard PostScript in 1985 and was widely popular, including PostScript Type 1 and Type3. Type 1 is complex and sophisticated, adding implicit information to the font and selling it to vendors who intend to add implied information to their fonts. Type 3 does not add implied information, but also includes other features that Adobe publishes publicly.

Design world's benchmark adobe

Since Type 3 was released publicly, other vendors quickly developed tools that could create type 3 fonts, and Adobe instantly laolei the font. Perhaps stimulated, and soon Adobe created another version of PostScript, rendering it more efficient and capable of running on a very slow PC at the time. This version of PostScript is named display PostScript.