In data transmission, an operation in which manual, semiautomatic, or automatic shifts in the data modulation rate are accomplished by gating or slewing the clock modulation rate.
Note: For example, bit-by-bit asynchronous operation may be at 50 b/s one moment and at 1200 b/s the next moment.

1. In message communications, the preservation of the exact number of bits that are in the original message.
2. In connection-oriented services, preservation of the number of bits per unit time.
Note: Bit-count integrity is not the same as bit integrity, which requires that the delivered bits correspond exactly with the original bits.

See bandwidth•distance product.

A characteristic of some digital data transmission systems that impose no restrictions on, or modification of, the transmitted bit sequence.
Note: Bit-sequence-independent protocols are in contrast to protocols that reserve certain bit sequences for special meanings, such as the flag sequence, 01111110, for HDLC, SDLC, and ADCCP protocols.

Pertaining to the control of digital equipment in which operations are performed one step at a time at the applicable bit rate.

1. In bit-oriented systems, the transmission of bit strings.
2. In character-oriented systems, the transmission of bit streams that represent characters.
Note: In bit-stream transmission, the bits usually occur at fixed time intervals, start and stop signals are not used, and the bit patterns follow each other in sequence without interruption.

Digital transmission in which two binary pulse trains are combined for transmission over a channel in which the available bandwidth is sufficient for transmission of only one of the two pulse trains at a time if they remain in binary form.

In computer graphics, a representation of an image (which category includes characters) by code or a coding scheme that defines (a) the position of pixels by row (horizontal position) and column (vertical position), and (b) individual pixel characteristics such as gray scale and color. Loosely synonymous with raster.

In computer graphics, an image created with, or represented by, a matrix of pixels. Synonym [loosely] raster graphics.

Abbreviation for Because It's Time NETwork. An early (ca.1981) store-and-forward digital communications network interconnecting universities and research institutions worldwide.
Note: BITNET, which is now obsolete, had a purpose akin to that of the present Internet, but was not nearly so robust, and at a speed of only 9600 b/s, it could not support the data rates presently attainable via the… (Read More →)