The original 10BASE5 Ethernet used coaxial cable as a shared medium.

IEEE 802. 3 is an exception ; Ethernet originally used Ethernet II framing, with a 2-octet type field containing an EtherType value, and no 802. 2 header, but the original IEEE 802. 3 specification used a framing wherein the 2-octet field following the 6-octet destination and source MAC addresses contained a frame length, with an 802. 2 LLC header following the length field.

In addition to the original 31. 25 kbit / s ( baud is the signalling rate and is the reciprocal of the shortest signalling element ; bits / sec is the data rate ) current-loop transported on 5-pin DIN, other connectors have been used for the same electrical data, and transmission of MIDI streams in different forms over USB, IEEE 1394 a. k. a. FireWire, and Ethernet is now common.

The Q40 and Q60, based on the 68040 and 68060 CPUs respectively, were much more powerful than the original QL and have the ability among other things ( such as multimedia, high resolution graphics, Ethernet networking etc.

10BASE5 ( also known as thick ethernet or thicknet ) was the original commercially available variant of Ethernet.

3Com's expansion beyond its original base of PC and thin Ethernet products began in 1987 when it merged with Bridge Communications.

For example, the original twisted pair Ethernet using repeater hubs was a logical bus topology with a physical star topology layout.

In computer networking, Fast Ethernet is a collective term for a number of Ethernet standards that carry traffic at the nominal rate of 100 Mbit / s, against the original Ethernet speed of 10 Mbit / s.

) Only more recently with the launch of the Internet did this law carry over to users and networks as its original intent was to describe Ethernet purchases and connections.

* Fast Ethernet Channel, the original name of EtherChannel, is a method for bundling Ethernet channels

Cat 3 is compatible with the original Power over Ethernet specification though it does not support the new 802. 3at Type 2 high-power variation.

While VLANs are commonly used in modern Ethernet networks, using them for the original purpose would be rather unusual.

Ethernet v2 framing considered these octets to represent EtherType while the original IEEE 802. 3 framing considered these octets to represent the size of the payload in bytes.

Most versions of the popular Ethernet family are given names such as the original 1980s 10BASE5 to indicate this.

UB marketed a broadband ( in the original technical sense ) version of Ethernet known as 10BROAD36 in the mid 1980s.

However, the MAC address inherited from the original MAC layer specification is used in many higher level protocols such as Internet Protocol ( IP ) over Ethernet.

The original Ethernet standard 10BASE-T used a baseband encoding ( also known as line coding ), where the signal is simply encoded directly on the wire without any sort of carrier wave.

In the original 10BASE5 and 10BASE2 Ethernet varieties, a segment would therefore correspond to a single coax cable and any devices tapped into it.

Under the rules of the IEEE 802 standards project, international standards are to be preferred over national standards so the modular connector was chosen for IEEE 802. 3i-1990, the original 10BASE-T twisted-pair wiring version of Ethernet.

These include: exponential backoff in protocols such as 802. 11's CSMA / CA and the original Ethernet, window reduction in TCP, and fair queueing in devices such as routers.

All units ran much faster than the original TRS-80, at 4 MHz, ( with a software selectable throttle to the original speed for compatibility purposes ) and the display supported upper and lower case, hardware snow suppression ( video ram bus arbitration logic ), and an improved character font set.

Backplanes have grown in complexity from the simple Industry Standard Architecture ( ISA ) ( used in the original IBM PC ) or S-100 style where all the connectors were connected to a common bus.

Changes to the bus architecture limited speed dramatically, to the point where it was about one-half the speed of the original Nova.

IBM designed the 8-bit version as a buffered interface to the external bus of the Intel 8088 ( 16 / 8 bit ) CPU used in the original IBM PC and PC / XT, and the 16-bit version as an upgrade for the external bus of the Intel 80286 CPU used in the IBM AT.

The Intel 8088, released in 1979, was a slightly modified chip with an external 8-bit data bus ( allowing the use of cheaper and fewer supporting logic chips ), and is notable as the processor used in the original IBM PC.

When placed on the external address bus, it replicates the original functions of B and C. Port A has input capture, output compare, pulse accumulator, and other timer functions ; port D has serial I / O, and port E has an analog to digital converter ( ADC ).

) used the original PDP-10 memory bus, with external memory modules.

Model As used the original PDP-10 memory bus, with external memory modules.

The PDP-11 processors tended to fall into several natural groups depending on the original design upon which they are based and which I / O bus they used.

Intel's original 50mhz 486 processor faced difficulty in the market as many existing motherboards ( even non-VLB designs ) did not cope well with the increase in front side bus speed to 50mhz.

In 2011 the city opened Ponte della Costituzione, the fourth bridge across the Grand Canal, connecting the Piazzale Roma bus terminal area with the Stazione Ferroviaria ( train station ), the others being the original Ponte di Rialto, the Ponte dell ' Accademia, and the Ponte degli Scalzi.

The same slot bus was continued on the ZX81, and later the ZX Spectrum, which encouraged a small cottage industry of expansion devices, including memory ( Sinclair produced RAM expansion packs for the ZX80: the original ZX80 RAM Pack held either 1, 2 or 3 KB of static RAM ; a later model held 16 KB, using dynamic RAM chips ( DRAM )), printers, and even floppy drives.

The original 32016 had a 16-bit external databus, a 24-bit external address bus, and a full 32-bit instruction set.

Many early IBM PC compatibles used the same computer bus as the original PC and AT models.

Descendants of the IBM PC compatibles comprise the majority of personal computers on the market presently, although interoperability with the bus structure and peripherals of the original PC architecture may be limited or non-existent.

However, as processor speed and memory width increased, the limits of the original XT / AT bus design were soon reached, particularly when driving graphics video cards.

The original standard was built around an ' enhanced ' 16-bit ISA bus platform.

In addition to supporting a wider bus of 32 bits ( instead of the original 16 ), CardBus also supports bus mastering and operation speeds up to 33 MHz.

** Santa Fe Depot, original name of Union Station ( San Diego ), a train and bus terminus

The original bus system started out as a demand response service bus in the 1990s, it only served St. Lucie County.

In order to distinguish the weak topology from the original topology on X, the original topology is often called the strong topology.

This topology will be finest completely regular topology on X coarser than the original one.

Given such an absolute value on K, a new induced topology can be defined on K. This topology is the same as the original topology.

The original approach to Chern classes was via algebraic topology: the Chern classes arise via homotopy theory which provides a mapping associated to V to a classifying space ( an infinite Grassmannian in this case ).

It is certain that one cannot expect in general that pt can reproduce all of the original elements of a topological space just from its lattice of open sets-for example all sets with the indiscrete topology yield ( up to isomorphism ) the same locale, such that the information on the specific set is no longer present.

The original problem was posed as the Problem of the topology of algebraic curves and surfaces ( Problem der Topologie algebraischer Kurven und Flächen ).

Such techniques are fast and efficient, however the original " purely parametric " formulation ( due to Kass and Terzopoulos in 1987 and known as " snakes "), is generally criticized for its limitations regarding the choice of sampling strategy, the internal geometric properties of the curve, topology changes ( curve splitting and merging ), addressing problems in higher dimensions, etc .. Nowadays, efficient " discretized " formulations have been developed to address these limitations while maintaining high efficiency.

Put another way, Whitney's theorem guarantees that the line graph almost always encodes the topology of the original graph G faithfully but it does not guarantee that dynamics on these two graphs have a simple relationship.

However, a dcpo equipped with the Scott topology need not be sober: The specialization order induced by the topology of a sober space makes that space into a dcpo, but the Scott topology derived from this order is finer than the original topology.