The other method utilizes a vector graphics system to define fonts. In vector graphics systems, the shape or outline of each character is defined geometrically. The typeface can be displayed in any size, so a single font description really represents innumerable fonts. Other terms for vector fonts are object-oriented fonts or outline fonts . The most widely used scalable-font systems are PostScript and TrueType .
Vector fonts look better, the higher the resolution.
Despite the advantages of vector fonts, bit-mapped fonts are still widely used. Many computer systems , therefore, use bit-mapped fonts for screen displays. These are sometimes called screen fonts . An additional drawback of vector fonts is that every character must be generated as it is needed. This is a computation-intensive process that requires a powerful microprocessor to make it acceptably fast.