Bit byte VGA

In computer science, bit is the smallest unit of information, which is called a binary bit. It is usually represented by 0 and 1. Byte is called a byte. It consists of eight (8 bit) bytes (1 byte), used to represent a character in the computer. Bit and byte can be converted. The conversion relationship is 1 byte = 8bit (or 1B = 8b, that is, 1bit is abbreviated to 1B (note that it is a lowercase English letter B), and 1byte is abbreviated to 1B (note that it is a capital English letter B ).
Generally, in a computer network or network operator, the unit of bandwidth rate is expressed in BPS (or B/S); BPS indicates the number of bits per second (that is, the number of bits transmitted per second, it is the abbreviation of bit per second. In practice, 1 mbps bandwidth means 1 Mbps (1 Mbps for megabits per second instead of 1 Mbps for megabytes ).

Resolution-a measure of the image resolution or concentration. For example, the resolution represents the number of dots per inch (DPI) displayed vertically and horizontally. Bitware can send and receive fax documents with standard or standard (100 × 200 dpi) and fine resolution (200 × 200 dpi.

Resolution is a concept that indicates the precision of a plane image. It is usually measured by the number of horizontal and vertical points, expressed in the form of horizontal points × vertical points. In a fixed plane, the higher the Resolution, the more points that can be used, the more detailed the image. There are a variety of resolutions. On the display, there is a display resolution indicating the display accuracy, a print resolution indicating the printing accuracy on the printer, and a scan resolution indicating the scanning accuracy on the scanner.

 

The enhanced graphics adapter (enhanced graphics adapter or mixer) is a standard definition for ibm pc Computer Display, with a display performance (color and resolution) between CGA... swap can reach 16 colors at resolution up to 640x350.
The video graphics array (video graphics array or VGA) has several different resolutions. The most common is 640x480 (4 bits per pixel, available in 16 colors ). There are also 320x200 (8 bits per pixel, available in 256 colors) and X text modes.
Advanced Video Graphics Array (Super Video Graphics Array or Super VGA or SVGA), which is a standard released by VESA for IBM compatible devices. Resolution: 800x600 (4 bits per pixel, optional in 16 colors ).
Extended Graphics Array or XGA is a standard launched by IBM in 1990. XGA supports 256 x resolution, color palette (8 bits per pixel), or X resolution (16 bits per pixel, or high color ). XGA-2 further supports 1024x768 (high color, higher frame rate), and 1360x1024 resolution (4 bits per pixel, 16 colors optional ).
Advanced eXtended graphic Array (Super eXtended Graphics Array or Super XGA or SXGA ). An existing fact display standard with a resolution of 1280x1024. Each pixel is represented in 32 bits (true color ). The aspect ratio of this widely used display standard is rather.
The super eXtended graphic Array (Ultra eXtended Graphics Array or Ultra XGA or UXGA) is a fait-of-fact standard. The resolution is 1600x1200 (32 bits per pixel, or true color ).
A Wide-screen extended graphic array (Wide XGA or WXGA) is an XGA format with a resolution of 1280x720 and A Aspect Ratio. This aspect ratio has become more popular on recent laptops.
Other resolutions: WXGA + 1440 × 900 (), WSXGA 1600 × 1024 (), WSXGA + 1680 × 1050 (), WUXGA 1920 × 1200), WQXGA 2560x1600)