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{{more citations needed|date=August 2019}} {{more citations needed|date=August 2019}}
]
In ] and ], '''serial communication''' is the process of sending ] one ] at a time, sequentially, over a ] or ]. This is in contrast to ], where several bits are sent as a whole, on a link with several parallel channels.



Serial communication is used for all ] and most ]s, where the cost of ] and ] difficulties make parallel communication impractical. Serial computer buses are becoming more common even at shorter distances, as improved ] and transmission speeds in newer serial technologies have begun to outweigh the parallel bus's advantage of simplicity (no need for serializer and deserializer, or ]) and to outstrip its disadvantages (], interconnect density). The migration from ] to ] is an example.
Vishal Chaudhary (born 31 July 2005) is an Indian actor, who works in Indian television and films and is known for his roles of Young Sahir/Samar in '']''and Prince Bahubali He is currently seen as ]'s ''yaro ka tashan''

https://i.ytimg.com/vi/HMpajGxzpF0/hqdefault.jpg
{| class="wikitable"
! colspan="2" |Vishal chaudhary
|-
| colspan="2" |
|-
!Born
|31 july 2005(age 16)
|-
!Occupation
|], ]
|-
!Years active
|2011 - present
|-
!Relatives
|Jaimini (sister)
|}


==Cables== ==Cables==

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Vishal Chaudhary (born 31 July 2005) is an Indian actor, who works in Indian television and films and is known for his roles of Young Sahir/Samar in Diana house 100and Prince Bahubali He is currently seen as Sab TV's yaro ka tashan

https://i.ytimg.com/vi/HMpajGxzpF0/hqdefault.jpg

Vishal chaudhary
Born 31 july 2005(age 16)
Occupation Actor, Gymnast
Years active 2011 - present
Relatives Jaimini (sister)

Cables

Main article: data cable

Many serial communication systems were originally designed to transfer data over relatively large distances through some sort of data cable.

Practically all long-distance communication transmits data one bit at a time, rather than in parallel, because it reduces the cost of the cable. The cables that carry this data (other than "the" serial cable) and the computer ports they plug into are usually referred to with a more specific name, to reduce confusion.

Keyboard and mouse cables and ports are almost invariably serial—such as PS/2 port, Apple Desktop Bus and USB.

The cables that carry digital video are almost invariably serial—such as coax cable plugged into a HD-SDI port, a webcam plugged into a USB port or Firewire port, Ethernet cable connecting an IP camera to a Power over Ethernet port, FPD-Link, etc.

Other such cables and ports, transmitting data one bit at a time, include Serial ATA, Serial SCSI, Ethernet cable plugged into Ethernet ports, the Display Data Channel using previously reserved pins of the VGA connector or the DVI port or the HDMI port.

Serial buses

RS-232 connector.

Many communication systems were generally designed to connect two integrated circuits on the same printed circuit board, connected by signal traces on that board (rather than external cables).

Integrated circuits are more expensive when they have more pins. To reduce the number of pins in a package, many ICs use a serial bus to transfer data when speed is not important. Some examples of such low-cost serial buses include RS-232, SPI, I²C, UNI/O, 1-Wire and PCI Express.

Serial versus parallel

The communication links, across which computers (or parts of computers) talk to one another, may be either serial or parallel. A parallel link transmits several streams of data simultaneously along multiple channels (e.g., wires, printed circuit tracks, or optical fibers); whereas, a serial link transmits only a single stream of data.

Although a serial link may seem inferior to a parallel one, since it can transmit less data per clock cycle, it is often the case that serial links can be clocked considerably faster than parallel links in order to achieve a higher data rate. Several factors allow serial to be clocked at a higher rate:

  • Clock skew between different channels is not an issue (for unclocked asynchronous serial communication links).
  • A serial connection requires fewer interconnecting cables (e.g., wires/fibers) and hence occupies less space. The extra space allows for better isolation of the channel from its surroundings.
  • Crosstalk is less of an issue, because there are fewer conductors in proximity.

In many cases, serial is cheaper to implement than parallel. Many ICs have serial interfaces, as opposed to parallel ones, so that they have fewer pins and are therefore less expensive.

Examples of architectures

See also

References

External links

Technical and de facto standards for wired computer buses
General
Standards
Storage
Peripheral
Audio
Portable
Embedded
Interfaces are listed by their speed in the (roughly) ascending order, so the interface at the end of each section should be the fastest.
Category
Line coding (digital baseband transmission)
Main articles
Basic line codes
Extended line codes
Optical line codes
Categories: