disk controller - определение. Что такое disk controller
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Что (кто) такое disk controller - определение

CONTROLLER FOR DISK STORAGE, USUALLY INTEGRATED INTO THE DRIVE
Hard disk controller; Hard drive controller; HD controller; Drive controller
  • RLL]] hard disk controller produced in 1990.
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disk controller         
<hardware, storage> (Or "hard disk controller", HDC) The circuit which allows the CPU to communicate with a {hard disk}, floppy disk or other kind of disk drive. The most common disk controllers in use are IDE and SCSI controllers. Most home personal computers use IDE controllers. High end PCs, workstations and network {file servers} mostly have SCSI adaptors. (1998-03-16)
Disk controller         
The disk controller is the controller circuit which enables the CPU to communicate with a hard disk, floppy disk or other kind of disk drive. It also provides an interface between the disk drive and the bus connecting it to the rest of the system.
Disk array controller         
DEVICE
Disk Array Controller; RAID controller; IDE RAID; RAID Controller; ATA RAID; RAID Controllers
A disk array controller is a device that manages the physical disk drives and presents them to the computer as logical units. It almost always implements hardware RAID, thus it is sometimes referred to as RAID controller.
Floppy-disk controller         
  • A setup disk of Japanese [[Microsoft Office]] 4.3, provided with 3.5" 1.2&nbsp;MB and 1440&nbsp;KB formats.
CIRCUITRY THAT CONTROLS READING FROM AND WRITING TO A COMPUTER'S FLOPPY DISK DRIVE
Floppy Disk Controller; Intel 82072A; Intel 82072; NEC µPD765; NEC uPD765; Floppy controllers; 3 mode; 3-mode; 3mode; Floppy disk controller; NEC D765; NEC 765; NEC 765A; NEC D765A; NEC µPD765A; ΜPD765; ΜPD765A; NEC uPD765A; UPD765; UPD765A; D765A; Intel 8072A; NEC μPD765; NEC μPD765A; Floppy controller; FDC controller; Philips interface bus; Floppy diskette controller; Diskette controller; Floppy disk drive controller; 2HC
A floppy-disk controller (FDC) has evolved from a discrete set of components on one or more circuit boards to a special-purpose integrated circuit (IC or "chip") or a component thereof. An FDC directs and controls reading from and writing to a computer's floppy disk drive (FDD).
Irrigation controller         
DEVICE OPERATING AUTOMATIC IRRIGATION SYSTEMS
Controller (irrigation)
An irrigation controller is a device to operate automatic irrigation systems such as lawn sprinklers and drip irrigation systems. Most controllers have a means of setting the frequency of irrigation, the start time, and the duration of watering.
DJ controller         
  • Mixvibes]]), which comes packaged with many Pioneer products, running on a computer
  • Pioneer]] DJ-Controller DDJ-SX2, 2014<ref>[https://www.bonedo.de/artikel/einzelansicht/pioneer-ddj-sx2-test.html Test bei Bonedo.de]</ref>
TYPE OF MUSIC CONTROLLER
DJ Controller; DJ digital controller
DJ controllers are devices used to help DJs mix music with DJ software using knobs, encoders, jog wheels, faders, backlit buttons, touch strips, and other components.
Memory controller         
DIGITAL CIRCUIT THAT MANAGES THE FLOW OF DATA GOING TO AND FROM THE COMPUTER'S MAIN MEMORY
Memory Controller; Integrated memory controller; Memory chip controller; DIMM scrambling; Memory scrambling; Memory Controller Unit; Memory controller unit
The memory controller is a digital circuit that manages the flow of data going to and from the computer's main memory. A memory controller can be a separate chip or integrated into another chip, such as being placed on the same die or as an integral part of a microprocessor; in the latter case, it is usually called an integrated memory controller (IMC).
Wireless LAN controller         
USED IN COMBINATION WITH THE LIGHTWEIGHT ACCESS POINT PROTOCOL TO MANAGE LIGHT-WEIGHT ACCESS POINTS IN LARGE QUANTITIES BY THE NETWORK ADMINISTRATOR OR NETWORK OPERATIONS CENTER
Wlan controller; Wireless LAN Controller
A wireless LAN (or WLAN) controller is used in combination with the Lightweight Access Point Protocol (LWAPP) to manage light-weight access points in large quantities by the network administrator or network operations center. The wireless LAN controller is part of the Data Plane within the Cisco Wireless Model.
Front controller         
  • A typical front controller structure.
DESIGN PATTERN FOR WEB APPLICATIONS WHICH HANDLES ALL REQUESTS FOR A WEBSITE AND THEREBY PROVIDE FLEXIBILITY AND REUSE WITHOUT CODE REDUNDANCY
FrontController; Front Controller Pattern; Front Controller pattern; Front controller pattern
The front controller software design pattern is listed in several pattern catalogs and related to the design of web applications. It is "a controller that handles all requests for a website", which is a useful structure for web application developers to achieve flexibility and reuse without code redundancy.
PID controller         
  • Showing the evolution of analog control loop signaling from the pneumatic to the electronic eras
  • Response of PV to step change of SP vs time, for three values of ''K''<sub>d</sub> (''K''<sub>p</sub> and ''K''<sub>i</sub> held constant)
  • Response of PV to step change of SP vs time, for three values of ''K''<sub>i</sub> (''K''<sub>p</sub> and ''K''<sub>d</sub> held constant)
  • Proportional control using nozzle and flapper high gain amplifier and negative feedback
  • Effects of varying PID parameters (K<sub>p</sub>,K<sub>i</sub>,K<sub>d</sub>) on the step response of a system
  • A [[block diagram]] of a PID controller in a feedback loop. ''r''(''t'') is the desired process value or setpoint (SP), and ''y''(''t'') is the measured process value (PV).
  • PID with derivative filtering
  • PID without derivative filtering
  • Response of PV to step change of SP vs time, for three values of ''K''<sub>p</sub> (''K''<sub>i</sub> and ''K''<sub>d</sub> held constant)
  • Basic block of a PI controller
  • alt=
  • Early PID theory was developed by observing the actions of [[helmsmen]] in keeping a vessel on course in the face of varying influences such as wind and sea state.
  • Current loops used for sensing and control signals. A modern electronic "smart" valve positioner is shown, which will incorporate its own PID controller.
CONTROL LOOP MECHANISM USED IN CONTROL ENGINEERING
PID loop; Proportional-Integral-Derivative controller; PID tuning; PID algorithm; Proportional integral derivative; PI controller; PD controller; PID control; PI Controller; Pi controller; Pidc; PID Controller; Proportional–integral–derivative controller; P.I.D. control; Droop (control); Proportional-integral-derivative controller; PID feed back controller; PID feedback controller; Three term controller; Steady-state error
A proportional–integral–derivative controller (PID controller or three-term controller) is a control loop mechanism employing feedback that is widely used in industrial control systems and a variety of other applications requiring continuously modulated control. A PID controller continuously calculates an error value e(t) as the difference between a desired setpoint (SP) and a measured process variable (PV) and applies a correction based on proportional, integral, and derivative terms (denoted P, I, and D respectively), hence the name.

Википедия

Disk controller

The disk controller is the controller circuit which enables the CPU to communicate with a hard disk, floppy disk or other kind of disk drive. It also provides an interface between the disk drive and the bus connecting it to the rest of the system.

Early disk controllers were identified by their storage methods and data encoding. They were typically implemented on a separate controller card. Modified frequency modulation (MFM) controllers were the most common type in small computers, used for both floppy disk and hard disk drives. Run length limited (RLL) controllers used data compression to increase storage capacity by about 50%. Priam created a proprietary storage algorithm that could double the disk storage. Shugart Associates Systems Interface (SASI) was a predecessor to SCSI.

Modern disk controllers are integrated into the disk drive as peripheral controllers. For example, disks called "SCSI disks" have built-in SCSI controllers. In the past, before most SCSI controller functionality was implemented in a single chip, separate SCSI controllers interfaced disks to the SCSI bus.

These integrated peripheral controllers communicate with a host adapter in the host system over a standardized, high-level storage bus interface. The most common types of interfaces provided nowadays by host controllers are PATA (IDE) and Serial ATA for home use. High-end disks use Parallel SCSI, Fibre Channel or Serial Attached SCSI.

Disk controllers can also control the timing of access to flash memory which is not mechanical in nature (i.e. no physical disk).