$2, this is a standard set price of any bus token/transit slip in bc
In a token bus network architecture, the nodes at either end of the bus do not actually meet. In a token ring, the network logically functions as a ring, but is wired as a star.
You can't get on the bus without a token.
A token bus uses a shared bus for communication. Hosts on the bus are ordered in a logical ring, with access to the bus coordinated by passing a token (a special packet) around the ring, indicating permission to transmit. The intent is to get the robustness of a simple bus protocol with the deterministic response time of a token ring. Unfortunately, because the bus is shared, each host on the bus must wait for the token to be completely transmitted before it can pass it on. This is in contrast to a token ring, where the token passes through each host with only a few bits delay. This gives the token bus considerably worse latency than a token ring. The reliability of a token protocol over a (CSMA protocl such as Ethernet ) is undermined by the complex protocols needed to recover the token at exactly one host should it become corrupted.
A commodity form of money is when the value of the money is determined by the intrinsic worth of what makes it. For example, if the money is salt (as was used by the Roman empire) then the value of the money is the same as the value of the same weight of salt in another form. A token form of money is when a form of money (for example a coin) is created that has little or no intrinsic value, but has value because a company or person has agreed to exchange the token for a good or service of value. One example is bus tokens - small coins that can be presented on buses in exchange for transportation.
bus token bus
Advantages of bus LAN Advantages of bus LAN
less cable
IEEE 802.4 token bus
How does Token Bus (IEEE 802.4) enforce discipline on a logical ring topology? ----
You can get the most recent ones on Ebay for $1.75 t0 $2.25 although the transit system is no longer using them.
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doubleplexer