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An acquittal is a signal (general terms a message signal is a simplified and generally coded. It exists in the form ...) indicating a logical operation has been requested or not taken into account.
It can be positive (ACK) or negative (NACK), indicating a good or bad reception. NACK signal can also be sent if no message (The information theory was developed to mathematically determine the rate of information transmitted ...) has been received after a period (timeout)
This signal is used in networking systems in connected mode, such as those that use protocols such as TCP / IP. Indeed, when trading data (In the information technology (IT), data is a basic description, often coded, a thing ,...) in a network (A network is a set equipment linked together to exchange information. ... By analogy with) TCP / IP, the recipient of a package must be paid by sending a TCP packet with the ACK flag (corresponding to a bit) activated at If the TCP packet may be retransmitted. This mechanism of course to ensure the cohesion of the TCP / IP network. For example, during an initialization of a TCP / IP, the Free-Hand-Check, this mechanism is used:
element 1 Source - SYN -> Destination
Source item 2 <- SYN / ACK - Destination
Source Element 3 - ACK -> Destinatio
Category: Electronics
Type: Glossaries and Dictionaries
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