History and classification of network cables in networking?

OriginsWe all tend to think of digital communication as a new technology, but back in 1844, a man named Samuel Morse used his new invention, the telegraph, to send a message to Baltimore, 37 miles from Washington D.C. This was the first time that the telegraph was used in a computer network. While this is a far cry from the computer networks we have today, they are based on the same principles.The Morse code is a binary system that uses dots and bars in different sequences to represent letters and numbers. Modern data networks use 1s and 0s to achieve the same result. The big difference is that a telegraph operator in the mid-1800s might only have been able to transmit 4 or 5 dots and bars per second, whereas today's computers can communicate at speeds of up to 1 gigabit, in other words, 1,000,000,000,000 transmissions of 1s and 0s, respectively, per second. While the telegraph and teletypewriter were precursors to data communication, it is only in the last 35 years that communication technology has really taken off. This has inevitably triggered a steady increase in the communication speed of computers, and has also led to the development of faster and faster networking equipment, higher and higher specification network cables and connecting hardware. The Development of New Network Technologies In the mid-1970s, Xerox Corporation in California developed Ethernet at its Palo Alto Research Centre (PARC) In 1979, DEC and Intel worked with Xerox to standardize the Ethernet system for user use. In 1980, the three companies published the first standard called the "Ethernet Blue Book", which we know as the "DIX standard" after the acronyms of the three companies. It was a 10 MB/sec (1010 Mbps = 10 million 1's and 0's per second) system that used a large coaxial backbone to connect the entire building and smaller coaxial cables spaced at 2.5 meter intervals to connect individual workstations. The large coaxial cables are often ** called "Coarse Ethernet" or 10 Base5 - the "10" refers to the speed (10 Mbps), the "Base" refers to the speed (10 Mbps), and the "Base" refers to the speed (10 Mbps) of the coaxial cable. Base" because it is a baseband system (baseband uses all the bandwidth for transmission, as opposed to broadband, which divides the bandwidth into channels for concurrent use), and "5" is an abbreviation for the system's maximum cable length of 500 m. In 1983, the Institute of Electrical and Electronic Engineers (IEEE) published a study on "The Rough Ethernet". In 1983, the Institute of Electrical and Electronic Engineers (IEEE) published an official Ethernet standard named IEEE 802.3 after the working group responsible for its development, and a second version (IEEE 802.3a) was published in 1985. Often referred to as "Thin Ethernet" or 10Base2, this second version has a maximum length of 185 meters, although the "2" indicates that it should be 200 meters. Since 1983, higher bandwidth requirements have led to a variety of different standards, and we have now reached Gigabit ratios. Unshielded Twisted Pair Unshielded Twisted Pair (UTP) cable is the most popular network cable in the world today.UTP cable is not only used in networking, but it is also used in the traditional telephone network (UTP-Cat 1). There are six different types of UTP and you have to choose the type of cable that suits your needs.UTP-Cat 5 is the most popular type of UTP cable. It was replaced by UTP-CAT5 because previous coaxial cables could not keep up with the growing demand for faster speeds and greater reliability in networks.Characteristics of UTPThe characteristics of UTP are very good and it is very easy to work with, install, expand and repair. Now we will consider the different wiring diagrams suitable for UTP, how to build a UTP pass-through cable, rules for safe operation and other goodies! So, let's take a quick look at the various UTPs currently available: Category 1/2/3/4/5/6 - a copper wire type (most phone and network wires are copper) and outlet specification. The numbers (1, 3, 5, etc.) refer to the number of revisions to the specification, and also in practice to the number of twists in the network cable (or connection quality of the socket).CAT1 is usually used in telephone cables. This type of wire is not capable of supporting computer network traffic and cannot be multistranded. It is also used by telephone companies to support ISDN, which uses CAT1 cable for wiring to customer sites and telephone company networks.CAT2, CAT3, CAT4, CAT5, and CAT6 are all network cable specifications. This type of wire is capable of supporting both computer networks and telephone networks.CAT2 is mostly used to support token ring networks, which support speeds up to 4 Mbps. For higher network speeds (above 100 Mbps), you have to use CAT5 cables, while for 10 Mbps, CAT3 will suffice.CAT3, CAT4, and CAT5 network cables are in fact 4 pairs of double-adhesive copper wires, while CAT5 has more strands per inch than CAT3, so it can be used for higher speeds and longer lengths. The effect of the "stranding" of each pair in the cable will cause any interference that occurs/picks up to be canceled by the cable partner who is in control of the initial cable.Both CAT3 and CAT4 are used for token rings - the only difference is that CAT3 lengths can be 100 meters while CAT4 lengths can only be 200 meters. CAT4 can only be 200 m. CAT6 wire was originally designed to support Gigabit Ethernet (although there are standards that allow CAT5 wire to carry Gigabit, and that is CAT 5e). It is similar to CAT5 wire, but has physical separation in all 4 pairs of strands to further minimize electromagnetic interference.