Picture refers to the plane media composed of graphics, images, etc. There are many formats of pictures, but they can be roughly divided into two categories: bitmap and vector graphics. Formats such as BMP and JPG are bitmap graphics, while formats such as SWF, CDR and AI are vector graphics.
What we see in the table is a general term for pictures, photographs and rubbings. Drawing is a basic term in technical drawing, which refers to a form of describing the geometric characteristics, shape, position and size of things with points, lines, symbols, characters and numbers. With the development of digital acquisition technology and signal processing theory, more and more pictures are stored in digital form.
Bitmap (foreign abbreviation: BMP, foreign full name: bitmap) is a standard image file format in Windows operating system, which can be supported by many Windows applications.
With the popularity of Windows operating system and the development of rich Windows applications, BMP bitmap format is naturally widely used. This format is characterized by rich image information and almost no compression, but it leads to its inherent disadvantage-it takes up too much disk space, so BMP is more popular on a single machine.