(n.) (1) In word processing, a block is a group of characters that you have marked to perform some action on them. For example, to move a section of text, you must first block it. This is sometimes called a block move.
To specify a block of text, you press special function keys (or click with a mouse) at the beginning and end of the block. The function keys differ from one word processor to another. Word processors usually display blocks by highlighting them on the screen.
(2) In data management, a block is a group of records on a storage device. Blocks are manipulated as units. For example, disk drives often read and write data in 512-byte blocks.
(3) In network communications, a block is a fixed-size unit of data that is transferred together. For example, the Xmodem protocol transfers blocks of 128 bytes. In general, the larger the block size, the faster the data transfer rate.
(v.) In word processing, to specify a section of text. See definition (1) above. Some applications call this selecting.
- block down converter
In satellite communications, a block down converter is the name of a device used to convert a 3.7 to 4.2 KHz signal down to 1-GHz and lower frequencies (UHF).
- block graphics
Graphical images created in character mode.
(n.) Short for Web log, a blog is a Web page that serves as a publicly accessible personal journal for an individual. Typically updated daily, blogs often reflect the personality of the author. (v.)To author a Web log. Other forms: Blogger (a person who blogs). See The History of Blogging in the Quick Reference section […]
- blog search engine
A search engine for the blogosphere. Blog search engines only index and provide search results from blogs (Web logs). Examples of blog search engines include Google Blog Search and Technorati. See “The History of Blogging” in the Quick Reference section of
- blog storm
A slang term that describes the use of blogging to push an event or subject to mainstream news. A blog storm is when the blogosphere collectively writes thousands or more posts about a particular subject, topic or event, and as a result, the story is picked up by mainstream media and carried over to newspapers, […]