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单词 rom
释义

ROM


ROM

Computing read only memory: a storage device that holds data permanently and cannot in normal circumstances be altered by the programmer

rom

[räm] (electricity) A unit of electrical conductivity, equal to the conductivity of a material in which an electric field of 1 volt per meter gives rise to a current density of 1 ampere per square meter. Derived from reciprocal ohm meter.

ROM

[räm] (computer science) read-only memory

ROM

Read-Only Memory

ROM

(1) In an Android phone, a file for firmware updating. See Android ROM.

(2) (Read Only Memory) A memory chip that permanently stores instructions and data. Also known as "mask ROM," its content is created in the last masking stage of the chip manufacturing process, and it cannot be changed. Stand-alone ROM chips and ROM banks in microcontroller chips are used to hold control routines for myriad applications. ROMs were also widely used to hold the BIOS in early PCs as well as plug-in cartridges for video games.

Although EPROMs, EEPROMs, and particularly flash memory, are the kinds of non-volatile storage one hears about more often, ROM is a mature, inexpensive technology that is easy to integrate into the design of any CMOS chip.

ROMs Are Secure
Unlike flash memory, which can be updated, the data in ROM chips cannot be tampered with. If encryption keys and other security codes are stored in a ROM, they cannot be altered unless the chip is physically replaced (see secure boot). See memory types, RAM, EEPROM and flash memory.


ROMs Are Everywhere
Cartridges that contain nothing more than a ROM chip are used to hold games and educational programs. The yellow ROM cartridge in this image (bottom right) contains a program for the LeapPad Learning System for preschoolers.

ROM


range

 [rānj] 1. the difference between the upper and lower limits of a variable or of a series of values.2. an interval in which values sampled from a population, or the values in the population itself, are known to lie.range of accommodation the total amount of accommodative power of the eye; the difference in refractive power of the eye when adjusted for near and for far vision. The amplitude diminishes as age increases because elasticity of the lens is decreased.range of audibility the range between the extreme frequencies of sound waves beyond which the human ear perceives no sound: lower limit, 16 to 20 cycles per second; upper limit, 18,000 to 20,000 cycles per second.range of motion the range, measured in degrees of a circle, through which a joint can be extended and flexed; see also range of motion exercises.

ROM

Gynecology Rupture of membranes. See Premature rupture of membranes Orthopedics Range of motion The arc of a joint's movement, potentially limited by musculoskeletal defects.

ROM

Abbreviation for range of motion.

Range of motion (ROM)

The range of motion of a joint from full extension to full flexion (bending) measured in degrees like a circle.Mentioned in: Spinal Cord Injury

ROM

Abbreviation for range of motion.

Rom

enUK

PIGNORIS CAPIO, ROM. civil law. The name given to one of the legis actiones of the Roman law. It consisted chiefly in the taking. of a pledge, and was in fact a mode of execution. It was confined to special cases determined by positive law or by custom, such as taxes, duties, rents, &c., and is comparable in some respects to distresses at common law. The proceeding took place in the presence of a praetor.

ROM


ROM

GOST 7.67 Latin three-letter geocode for Romania. The code is used for transactions to and from Romanian bank accounts and for international shipping to Romania. As with all GOST 7.67 codes, it is used primarily in Cyrillic alphabets.

ROM (Read Only Memory)

a COMPUTER memory device from which data can be read but which cannot be written on to. The contents of such memory are fixed when the computer is manufactured, being incorporated in ROM micro chips.

ROM


AcronymDefinition
ROM➣Read-Only Memory
ROM➣Rome (Amtrak station code; Rome, NY)
ROM➣Romania
ROM➣Romans
ROM➣Range Of Motion
ROM➣Romanian (language)
ROM➣Range of Movement
ROM➣Right on the Money
ROM➣Record of Materials (construction)
ROM➣Royal Ontario Museum (Canada)
ROM➣Rest of Market
ROM➣Runes of Magic (gaming)
ROM➣Run of Mine
ROM➣Return of the Member (credit union evaluation)
ROM➣Risk of Mortality
ROM➣Run of the Mill
ROM➣Rough Order of Magnitude (estimate)
ROM➣Ring Opening Metathesis
ROM➣Return on Marketing
ROM➣Rivers of Mud
ROM➣Rupture Of Membrane
ROM➣Rookie of the Month (various sports)
ROM➣Register of Merit (title in animal shows)
ROM➣Recycled Organic Material (agriculture)
ROM➣Random Oracle Model (cryptography)
ROM➣Read Only Memory
ROM➣Risk and Opportunity Management (various locations)
ROM➣Rome, Italy - Leonardo Da Vinci / Fiumicino (Airport Code)
ROM➣Remote Operations Manager (software)
ROM➣Restriction of Movement
ROM➣Radio Organisatioun Medernach (Luxembourg radio station)
ROM➣Return On Management
ROM➣Register Of Marriage
ROM➣Regional Oxidant Model
ROM➣Results-Oriented Monitoring (EU)
ROM➣Record of Merit
ROM➣Result Oriented Management (management system)
ROM➣Routine Outcome Measurement (mental health)
ROM➣Refuel On the Move
ROM➣Rio Algom, Ltd. (Canada)
ROM➣Read Only Message
ROM➣Repair Operations Manual (Jaguar)
ROM➣Regional Office Manager
ROM➣Raad van Overleg in de Metalektro (Dutch)
ROM➣Rebels of Mankind (BattleField 2 clan)
ROM➣Right Otitis Media (infection of the eardrum)
ROM➣Reasonable Order of Magnitude
ROM➣Roll-Over Mortgage (finance)
ROM➣Retail Operation Management (US Navy)
ROM➣Retention Office Manager (US DoD)
ROM➣Request of Materials
ROM➣Reception and Onward Movement
ROM➣Received Output Message
ROM➣Random Order of Magnitude (cost estimate)
ROM➣Rifters of Matter (gaming guild)
ROM➣Resource Optimization Management
ROM➣Rate of Maxima
ROM➣Run-Of-Month

ROM


  • noun

Synonyms for ROM

noun (computer science) memory whose contents can be accessed and read but cannot be changed

Synonyms

  • fixed storage
  • read-only memory
  • read-only storage

Related Words

  • CD-ROM
  • compact disc read-only memory
  • EPROM
  • erasable programmable read-only memory
  • computer memory
  • computer storage
  • memory board
  • store
  • memory
  • storage
  • computer science
  • computing
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更新时间：2024/11/14 21:17:28