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The first IoT layer. Refers to all the hardware parts in the IoT system. Primary Sensors These include sensors, RFID tags, readers, and other devices. They're the primary data sensors that convert information from the real world into data that can be sent over...

A location service that triangulates a device's position relative to other radio sources (e.g. cellular towers) using specialized tags. #XI

A hardware device used to collect data travelling across the network its connected to. The data can then can be forwarded to a piece of software that can be used to analyze them for inspection. #I

An unshielded twisted pair cable category that supports up to 100 Mbps Ethernet. Description RJ11-Connector 100 Mhz #III

The better version of Cat-6. Provides better shielding and tighter cable twists, which reduces crosstalk and the risk of falling to EMI. Description RJ45-Connector 10 Gbps 500 MHz Limits 10 Gbps to a max cable length of 100 meters #III

aliases: SATA A type of port used to connect internal hard drives to the motherboard. It's data connectors use 7-pins while it's power cable connector uses 15 pins. Features: meter long cable SATA3 cables have a data transfer speed of 600 MB/s come in two...

Power-On Self Test: A legacy firmware system used to detect and inform the user of problems that prevent the system from booting normally. An enumeration of all the different POST Beep Codes and what they point to. Note that different manufacturers might use d...

A network cable used to connect computer systems to a network through a hub or switch. #III

A wiring standard for the RJ45 connector as defined by the order of the wires that connect to the jack. T568B is the preferred format for networks in commercial networks in the US. Color Order Orange White Orange Green White Blue Blue White Green Brown White ...

A type of connector used to connect computer systems using fiber optic cabling. An ST connector: Is used with single mode and multi-mode cabling. Is a keyed, bayonet-type connector. Is also called a push in and twist connector. Has a separate connector for ea...

An enumeration of all the different types of connectors listed in the A+ course. Connector Types RJ11-Connector RJ45-Connector F Type Connector ST-Connector SC-Connector LC Connector Punchdown Block microUSB miniUSB USB Type C Molex Connector Lightning DB9 Co...

An analog signal that corrupts or destroys regular signals used by communicating devices on networks. There are three main types of interference: Electromagnetic-Interference Radio-Frequency-Interference Magnetic-Interference #II

aliases: EMI A type of interference that affects wired network signals. EMI signals are emitted by motors, heavy machinery, and fluorescent lights. It can be prevented by using twisted pair cables to protect signals sent via Ethernet. Swapping to fiber opt...

A storage sector in the computers hardware that houses stuff that the processor is immediately working on, but will not be stored long-term.

A hardware device used to get input from the user, usually to interact with the GUI. A mouse can be either wired or wireless. Mice usually are connected via USB ports. Wireless mice use an internal battery to power RF signal receptors that are tied to the comp...

A proprietary video port connector designed by Intel and Apple. It provides video, audio, DC power, and data signals when connecting an external display into an Apple computer. Features: Combines PCIe and DisplayPort into two serial signals in a bi-directiona...

Point-to-Point Protocol over Ethernet: an Internet protocol designed for Digital-Subscriber-Line connections, authentication is done via username and password. #XI

aliases: DSL A service that provides Internet over telephone lines. There are two types of DSL: asymmetric and symmetric. DSL is top-tier when it comes to cost-effectiveness and uptime. Asymmetric DSL Download speed is faster than the upload speed. Symmetr...