The concept of a block
appears in various fields:
In telecommunication, the term block has the following meanings:
1. A group of bits or digits that is transmitted as a unit and that may be encoded for error-control purposes.
2. A string of records, words, or characters, that for technical or logical purposes are treated as a unit.
Note 1: Blocks (a) are separated by interblock gaps, (b) are delimited by an end-of-block signal, and (c) may contain one or more records.
Note 2: A block is usually subjected to some type of block processing, such as multidimensional parity checking, associated with it.
Source: from Federal Standard 1037C and from MIL-STD-188
- In programming languages, a block forms a subdivision of a program that serves to group related statements, delimit routines, specify storage allocation, delineate the applicability of labels, or segment parts of the program for other purposes.
- In data storage, either in primary or on secondary storage, grouped data can occur in units known as blocks. Compare block size (data storage and transmission).
In the construction (building) industry, a block comprises a shaped piece of masonry.
In philately, a block is an attached group of postage stamps; see postage stamp block.
A block is the smallest part of a town enclosed by streets.
A block can also mean an Apartment Block (Block of Flats in British English).