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Similar headers are used in Usenet messages, and HTTP headers. In a data packet sent via the Internet, the data (payload) are preceded by header information such as the sender's and the recipient's IP addresses, the protocol governing the format of the payload and several other formats. The header's format is specified in the Internet Protocol.
The middle section of the frame is payload data including any headers for other protocols (for example, Internet Protocol) carried in the frame. The frame ends with a frame check sequence (FCS), which is a 32-bit cyclic redundancy check used to detect any in-transit corruption of data.
Link prefetching. allows web browsers to pre-load resources. This speeds up both the loading and rendering of web pages. Prefetching was first introduced in HTML5. Prefetching is accomplished through hints in web pages. These hints are used by the browser to prefetch links. Resources which can be prefetched include: JavaScript, CSS, image ...
The headers help screen readers render header information about data cells. For example, header information is spoken prior to the cell data, or header information is provided on request. Scope of headers (scope="col" and scope="row") This clearly identifies headers as either column headers or row headers respectively.
Note that data-role is an example of the HTML5 data attribute, in this case being defined by jQuery Mobile. A page may have header and footer elements with data-role of header and footer, respectively. In between, there may be an article element, with a role of main and a class of ui-content.
A master boot record ( MBR) is a type of boot sector in the first few blocks of partitioned computer mass storage devices like fixed disks or removable drives intended for use with IBM PC-compatible systems and beyond. The concept of MBRs was publicly introduced in 1983 with PC DOS 2.0 . The MBR holds the information on how the disc's sectors ...
Sass, Less Framework, Bootstrap (v3) Less ( Leaner Style Sheets; sometimes stylized as LESS) is a dynamic preprocessor style sheet language that can be compiled into Cascading Style Sheets (CSS) and run on the client side or server side. [2] Designed by Alexis Sellier, Less is influenced by Sass and has influenced the newer "SCSS" syntax of ...
evolution .genetics .washington .edu /phylip .html. PHYLogeny Inference Package ( PHYLIP) is a free computational phylogenetics package of programs for inferring evolutionary trees ( phylogenies ). [1] It consists of 65 portable programs, i.e., the source code is written in the programming language C.