What is bit time?

Bit Time

Bit time is a concept in computer networking. It is defined as the time it takes for one bit to be ejected from a Network Interface Card (NIC) operating at some predefined standard speed, such as 10 Mbit/s. The time is measured between the time the logical link control layer 2 sublayer receives the instruction from the operating system until the bit actually leaves the NIC. The bit time has nothing to do with the time it takes for a bit to travel on the network medium, but has to do with the internals of the NIC.

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Some articles on bit time:

Bit Time
... Bit time is a concept in computer networking ... It is defined as the time it takes for one bit to be ejected from a Network Interface Card (NIC) operating at some predefined standard speed, such as 10 Mbit/s ... The time is measured between the time the logical link control layer 2 sublayer receives the instruction from the operating system until the bit actually ...
Coded Mark Inversion
... It encodes zero bits as a half bit time of zero followed by a half bit time of one, and while one bits are encoded as a full bit time of a constant level ... The level used for one bits alternates each time one is coded ... of, but quite different from, Miller encoding, which also uses half-bit and full-bit pulses, but additionally uses the half-one/half-zero combination and arranges them so that the signal always spends at least a ...
Year 2038 Problem - Data Structures With Time Problems
... Many data structures in use today have 32-bit time representations embedded into their structure ... to derive but there are well-known data structures that have the Unix time problem ... file systems (many filesystems use only 32 bits to represent times in inode) binary file formats (that use 32-bit time fields) databases (that have 32-bit time fields) COBOL systems from the 1970s, 1980s and ...
Notable Events in Unix Time
... time_t parties to celebrate significant values of the Unix time number ... As the use of Unix time has spread, so has the practice of celebrating its milestones ... Usually it is time values that are round numbers in decimal that are celebrated, following the Unix convention of viewing time_t values in decimal ...
Internet 0 - Implementation
... A zero bit is a one-microsecond pulse in the center of the first half of a bit time, and a one is a pulse in the second half of a bit time ... Data is sent as 8 bit bytes ... A byte is preceded by a bit time that has two pulses (at both 1 and 0 times), and ends with a bit time that has another two pulses ...

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