A multimedia link unit (MAU) connects computers to an Ethernet backbone. It is also known as a token ring. MAUs exchange data or tokens between computers connected to it and other computers connected to the LAN via Ethernet. However, token ring implementation has fallen out of favor with Ethernet network interface cards. A multimedia link […]
Transcription creates RNA strands from specific sections of DNA called transcription units. These units contain both exons and introns, but only exons code for proteins. After transcription, introns are removed through splicing, and alternative splicing can result in different final mRNA sequences that can code for multiple proteins. Transcription is a process that occurs in […]
MO drives use magneto-optical technology to provide high-capacity portable media for computers. They use a laser and magnetic head to read and write to MO diskettes, which are twice as thick as floppy disks. The Kerr effect is used to read the disk, while the Curie point is used to write. MO drives are durable […]
The arithmetic logic unit (ALU) is a component of the CPU that performs mathematical and logical operations. It works with the register array to process data. Some CPUs have separate units for fixed-point and floating-point calculations, and some have digital coprocessors to increase speed. The ALU receives instructions from the control unit, including operation codes, […]
A combo drive reads and writes multiple types of optical discs, often referring to CD and DVD. They became less common in the 21st century as drives that could read and write both CDs and DVDs became popular. Apple Inc. produced the most popular brand of combo drives, which saved space and were cheaper. Combo […]
The System Management Unit (SMU) is a microcontroller on a device’s logic board that regulates key operations, replacing the older Power Management Unit. It communicates with the operating system to adjust power flow and prevent overheating. Malfunctions can be fixed with a manual reset or manufacturer workarounds. System Management Units, also known as SMUs, are […]
To become a healthcare facility coordinator, complete necessary training, gain experience in a healthcare facility, and have excellent communication skills. Training options include nursing or administration programs. Experience can be gained through co-op or internship programs. The role involves ensuring administrative tasks are completed correctly. The most common way to become a healthcare facility coordinator […]
A unit supply specialist is responsible for keeping a military unit stocked with necessary supplies and weapons, including taking inventory, keeping records, ordering supplies, unloading supplies, and issuing correct supplies to soldiers. They must be organized, have computer skills, and order supplies before they run out. A unit supply specialist plays an essential role in […]
A miniature drive, also known as a USB stick, flash drive, or memory stick, is a small and portable device used for backing up files, transferring data, and storing information. It is compatible with most computers and operating systems and is durable due to its lack of moving parts. It can also be used as […]
The astronomical unit (AU) is a measure of distance equal to the distance between the Earth and the Sun, approximately 93 million miles (150 million km). The AU has been estimated for centuries, with modern measurements being the most accurate. The current definition is the distance from the center of the Sun at which a […]
A parity drive stores parity data for redundancy and backup in a RAID system. It provides extra storage of “parity bits” used to back up major drives. The parity unit works by storing parity bits, which can be used to recreate missing data if a storage drive fails. A parity drive is a storage device […]
The memory management unit (MMU) manages computer memory and is integrated into the CPU. It allocates memory from the operating system to applications and uses virtual memory when RAM runs out. The MMU also manages memory resources for programs and detects when data is no longer needed. Inefficient memory management can impact computer performance. The […]
The atomic mass unit (AMU) is a universally applied measurement based on 1/12 of the total mass of a single carbon-12 atom. AMUs are used in every science except biology and biochemistry, and are convenient because one unit equals one atom of hydrogen. However, AMUs do not account for the energy that binds the nucleus […]
Atoms can form bonds in two ways: ionic and covalent. Ionic compounds consist of oppositely charged ions held together by electrical attraction, while covalent compounds involve the sharing of electrons. Formula units show the smallest ratio of atoms in a compound. Empirical formulas show the simplest ratio of elements, while molecular formulas show the actual […]
Fan coil units consist of a heating or cooling coil and can be used in various capacities. They regulate temperatures and can be controlled by a thermostat or manual switch. They are cost-effective and can be installed in different ways, but can be noisy. There are two types of units: two-pipe and four-pipe, with the […]
A phasor measurement unit (PMU) measures the phase and amplitude of sine waves to monitor the quality of AC supplied by power companies. PMUs are necessary for synchronizing generators in a power grid and forming an intelligent grid with accurate control of power plants. A phasor measurement unit (PMU) is a means of providing a […]
Skid units are portable fire suppression devices that can be mounted on pickup trucks or other vehicles. They can hold up to 1,500 gallons of water or chemicals and extend firefighting capability at a lower cost than fire engines. Skid units can be designed for use with foam or other chemical fire suppression methods and […]
Ball transfer units are low-friction devices used in specialized conveying systems to move materials in all directions. They consist of a large ball bearing surrounded by smaller ones, mounted on metal runners on the conveyor bed. They are easy to replace and suitable for applications where other devices are not. A ball transfer unit is […]
Concentration units show the amount of material in a substance and can be described in various ways. The most common method is “parts per million” and “concentrated” and “diluted” are common marketing terms. Molarity and molality are the most specific methods and are used in chemical mixing. The exact composition is usually irrelevant for laymen […]
A warrant unit executes arrest warrants and works with other law enforcement agencies. Members receive special training and must first qualify as police officers. The unit has its own chain of command and may assist other agencies with major arrests. A warrant unit is a division of law enforcement focused on executing warrants. People typically […]
