1000BASE-T, aka Gigabit Ethernet, one of several physical media specified in the IEEE 802.3 standard for Ethernet local area networks (LANs), is ordinary telephone unshielded twisted pair (UTP) wire. 1000BASE-T supports 1Gbps transmission speed.

100BASE-T, one of several physical media specified in the IEEE 802.3 standard for Ethernet local area networks (LANs), is ordinary telephone unshielded twisted pair (UTP) wire. 100BASE-T supports Ethernet's 100 Mbps transmission speed.

10BASE-2, a.k.a. Thinnet a.k.a. Cheapernet, one of several physical media specified by IEEE802.3 for use in an Ethernet local area network (LAN), consists of RG58 Coaxial cable with a maximum segment length of 185 meters. 10BASE-2 supports Ethernet's 10 Mbps data rate.

10Base-2 cables typically use BNC barrel connectors and is run as a trunk line. BNC T connectors are used to run drop cables to Nodes.

This XBASE-Y designation is an IEEE shorthand identifier. The "10" in the media type designation refers to the transmission speed of 10 Mbps, 100 refers to 100Mbps, 1000 refers to 1Gbps. The "BASE" refers to Baseband signaling, which means that only Ethernet signals are carried on the medium. The "T" represents twisted-pair which supports a maximum length of 100 meters; the "F" represents fiber opticcable; the "2" represents a maximum length of 185 meters (rounded up to 200), and "5" represents a maximum length of 500 meters.

10BASE-5, a.k.a. Thicknet, one of several physical media specified by IEEE 802.3 for use in Ethernet an local area network (LAN), consists of Thickwire Coaxial cable with a maximum segment length of 500 meters. 10BASE-5 supports Ethernet's 10 Mbps data rate.

10Base-5 cables are run as a trunk line and use transceivers attached to the trunk by a vampire tap. The transceiver provides for the drop line to the Node.

This XBASE-Y designation is an IEEE shorthand identifier. The "10" in the media type designation refers to the transmission speed of 10 Mbps, 100 refers to 100Mbps, 1000 refers to 1Gbps. The "BASE" refers to Baseband signaling, which means that only Ethernet signals are carried on the medium. The "T" represents twisted-pair which supports a maximum length of 100 meters; the "F" represents fiber opticcable; the "2" represents a maximum length of 185 meters (rounded up to 200), and "5" represents a maximum length of 500 meters.

10BASE-F, one of several physical media specified in the IEEE 802.3 standard for Ethernet local area networks (LANs), is the use of optical fiber. 10BASEF supports Ethernet's 10 Mbps transmission speed.

This XBASE-Y designation is an IEEE shorthand identifier. The "10" in the media type designation refers to the transmission speed of 10 Mbps, 100 refers to 100Mbps, 1000 refers to 1Gbps. The "BASE" refers to Baseband signaling, which means that only Ethernet signals are carried on the medium. The "T" represents twisted-pair which supports a maximum length of 100 meters; the "F" represents fiber opticcable; the "2" represents a maximum length of 185 meters (rounded up to 200), and "5" represents a maximum length of 500 meters.

10BASE-T, one of several physical media specified in the IEEE 802.3 standard for Ethernet local area networks (LANs), is ordinary telephone unshielded twisted pair (UTP) wire. 10BASE-T supports Ethernet's 10 Mbps transmission speed.

1GL – refers to very low level programming languages (machine language) where the level of instructions and data that the processor is actually given to work on is a string of 0s and 1s.

2GL – refers to assembler (sometimes called "assembly") language. A typical 2GL instruction looks like this:
     ADD 12,8

3GL – refers to a "high-level" programming language, such as Basic, PL/I, C, or Java. Java language statements look like this:
    public boolean handleEvent(Event evt) {
        Switch (evt.id) {
              case Event.ACTION_EVENT : {
                    if ("Try me" .equald(evt.arg)) {

4GL - is designed to be closer to natural language than a 3GL language. Languages for accessing Databases are often described as 4GLs. A 4GL language statement might look like this:
    EXTRACT ALL CUSTOMERS WHERE "PREVIOUS PURCHASES" TOTAL MORE THAN $1000

5GL - uses a visual or graphical development Interface to create source code that is usually compiled with a 3GL or 4GL language compiler. Microsoft, Borland, IBM, and other companies make 5GL visual programming products for developing applications in Java, for example. Visual programming allows you to easily envision object-oriented programming and drag icons to assemble program components.