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21 unit
• osasto• jakso• joukko-osasto• elementti• asema(tietotekn)automatic data processing• asema (atk)• yhdestock exchange• pörssierä• rahasto-osuus• rakenneyksikkö• kappaletechnology• sykäys• yksikkö• yksikkö(tekniikka)• yksikkö (tek.)• laite* * *'ju:nit1) (a single thing, individual etc within a group: The building is divided into twelve different apartments or living units.) yksikkö2) (an amount or quantity that is used as a standard in a system of measuring or coinage: The dollar is the standard unit of currency in America.) yksikkö3) (the smallest whole number, 1, or any number between 1 and 9: In the number 23, 2 is a ten, and 3 is a unit.) ykkönen -
22 dry-to-dry processing
English-Russian big polytechnic dictionary > dry-to-dry processing
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23 in-line processing
English-Russian big polytechnic dictionary > in-line processing
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24 off-line data processing
English-Russian big polytechnic dictionary > off-line data processing
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25 on-line data processing
English-Russian big polytechnic dictionary > on-line data processing
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26 pel-to-pel processing
English-Russian big polytechnic dictionary > pel-to-pel processing
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27 symbolic processing
English-Russian big medical dictionary > symbolic processing
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28 data processing
обработка данных; процесс обработки информацииEnglish-Russian dictionary on nuclear energy > data processing
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29 operating system
"The software that controls the allocation and usage of hardware resources such as memory, central processing unit (CPU) time, disk space, and peripheral devices. The operating system is the foundation on which programs are built." -
30 SPU
1) Компьютерная техника: Sequence Programmer Unit, Sound Processing Unit, Sub- Picture Unit, System Processing Unit2) Медицина: single patient use3) Американизм: Secure Processing Unit, Socialist Party Union, Special Police Unit, Special Port Unit, Special Powers Unit, Stored Power Unit4) Военный термин: Security Police Unit, Shore Patrol Unit, Sub-surface Propulsion Unit, signal processing unit, software production unit, Specialist, Utility (Women's Reserve)5) Техника: SCSI-3 parallel interface6) Сельское хозяйство: Sheep Production Unit7) Фармакология: State Pharmacopoeia of Ukraine8) Грубое выражение: Sex Perverts Union9) Сокращение: Samokhodnaya Puskovaya Ustanovka (Russia)10) Университет: Seattle Pacific University, Southwestern Presbyterian University, Student Peace Union11) Электроника: Socket Power Unit, Sound Pick Up (microphone)12) Фирменный знак: Seattle Public Utilities13) Деловая лексика: Scientific Products Unit, (Strategic Performance Unit) стратегическое подразделение15) Образование: School Personnel Utilization16) Пластмассы: Segmented Polyurethane -
31 SPU
1) [service protocol unit] блок протокола обслуживания2) [system processing unit] системный процессор -
32 SPU
1) сокр. от service protocol unit блок протокола обслуживания2) сокр. от system processing unit системный процессорThe New English-Russian Dictionary of Radio-electronics > SPU
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33 SPU
1. SCSI-3 parallel interface - параллельный интерфейс SCSI-3;2. system processing unit - системный процессор -
34 datum
data nданныеaccident data reportотчет об авиационных происшествияхacoustic dataакустические данныеadvisory dataконсультативная информацияaeronautical dataаэронавигационные данныеaircraft integrated data systemбортовая комплексная система регистрации данныхaircraft test dataданные о результатах испытаний воздушного суднаair dataданные о результатах испытания в воздухеair data computerвычислитель воздушных сигналовair data computer systemсистема сбора воздушных сигналовair-derived dataданные, полученные с бортаairway climatic dataметеосводка по трассе полетаanalogue data recorderаналоговый регистратор полетных данныхangular dataугловые координатыautomated data interchange systemсистема автоматизированного обмена даннымиautomatic data processingавтоматическая обработка данныхautomatic data transfer equipmentоборудование автоматической передачи данныхbalance dataцентровочные данныеbasic dataисходные данныеbasic technical dataосновные технические параметрыciting dataинформативные данныеdata channelканал передачи данныхdata communication systemсистема передачи данныхdata flow controlуправление потоком информацииdata handling systemсистема обработки данныхdata interchange serviceслужба обмена данными(о полете) data interchange systemсистема обмена даннымиdata linkканал передачи данныхdata link systemсистема передачи данныхdata on the performanceкоординаты характеристикиdata presentationпредставление данныхdata processing displayиндикатор результатов обработки данныхdata processing systemсистема обработки данныхData Processing UnitСектор обработки данныхdata readerустройство для считывания информацииdata recorderрегистратор данныхdata reductionобработка данныхdata reportстатистический отчетdata sheetперечень летно-технических данныхdata switching systemкоммутационная система передачи данныхdata systemинформационная системаdatum angleбазовый уголdatum conditionsисходные условияdatum leveling barнивелировочная линейкаderivation of operating dataрасчет эксплуатационных параметровdesign dataрасчетные данныеelectronic data processingэлектронная обработка данныхelectronic data transmissionэлектронная передача данныхfiling of statistical dataпредставление статистических данныхflight dataлетные данныеflight data averagingосреднение полетных данныхflight data inputввод данных о полетеflight data linkканал передачи данных в полетеflight data recorderрегистратор параметров полетаflight data storage unitблок сбора полетной информацииflight environment dataданные об условиях полетаflight environment data systemсистема сбора воздушных параметров(условий полета) grid-point dataданные в узлах координатной сеткиground-derived dataданные, полученные от наземных службidentification dataданные для опознаванияincident data reportинформационный отчет о предпосылке к происшествиюloading dataзагрузочные данныеmagnetic variation dataданные о магнитном склоненииmain dataосновные данныеmeasured noise dataданные измеренного шумаmeteorological dataметеорологические данныеobservation dataданные наблюденийoperating dataэксплуатационные данныеpacket switched data networkсеть передачи данных с пакетной коммутациейpreprocessed data systemсистема предварительной обработки данныхradar dataрадиолокационная информацияradar data processingобработка радиолокационной информацииraw dataнеобработанные данныеreference dataсправочные данныеreference datumопорная точкаreference datum heightвысота опорной точкиshipping dataотгрузочные данныеspecific pressure datumустановленная величина давленияtest dataрезультаты испытанияweight and balance dataвесовые и центровочные данныеweight dataвесовые данныеzero reference datumначало отсчета -
35 image
изображение, образ, изображать, формировать изображение, отображение
– 2-D image
– 3-D image
– image acquisition
– image amplification
– image amplifier
– image analisys system
– image analyzer
– image aspect ratio
– image buffering
– image classification
– image conversion
– image correction
– image creator
– image data
– image decomposition
– image deformation
– image depth analysis
– image description
– image digitizer
– image display
– image distortion
– image element
– image energy
– image enhancement
– image enlargement
– image fault
– image field
– image format
– image formation
– image formation system
– image generation
– image grabbing
– image gradient
– image iconoscop
– image intensity
– image interpretation
– image knowledge
– image memory
– image plane
– image point
– image preprocessing
– image processing
– image processor
– image quantization
– image reading
– image recovery
– image rectification
– image refinement
– image representation
– image resolution
– image restoration
– image scale
– image scanner
– image segment
– image segmentation
– image sensor
– image sharpness
– image shift
– image skeleton
– image smoothing
– image storage
– image structure
– image synthesis
– image transfer
– image translator
– image transmission
– image tube
– image understanding
– image unit
– image-based
– image-based control
– image-based visual servo
– image-flow processing
– image-oriented knowledge
– image-processing system
– image-processing unit
– image-understending algorithm
– image-understending system
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36 SAP
1) Общая лексика: hum. сокр. Sensitive To Antimicrobial Peptides, hum. сокр. Slam Associated Protein, social action program, Site Access Permit (SEIC), старшее ответственное лицо (Senior Authorised Person, напр. http://www.indeed.co.uk/jobs?q=Senior+Authorised+Person&l=London)2) Компьютерная техника: System Application Program, Systems Application Products, Systems, Applications, and Products3) Медицина: statistical analysis plan, план статистического анализа, нарколог (substance abuse professional), substance abuse professional - нарколог (сокр.)4) Американизм: Scientific Advisory Panel, State Assessment Panel, Statements of Administration Policy, Statutory Adoption Pay, Stop All Progress, Substance Abuse Prevention5) Спорт: Slight Atari Player6) Военный термин: System Acquisition Plan, search and attack pattern, security assistance plan, security assistance program, semiarmor-piercing, shipboard antenna pedestal, standing air patrol, strategic advantages profile, structural analysis program, supervisory airplane pilot, system alignment procedure7) Техника: safety assessment principles, severe accident program, sintered aluminum powder, solar array program, startup administrative procedure, statements on auditing procedures, system acquisition process8) Шутливое выражение: Satan's Accounting Program, Slow And Painful, Somewhat Academic Privacy, Son Af a Pitch9) Религия: Share And Prayer10) Юридический термин: Special Assistance Pass, Substance Abuse Panel, Substance Abuse Program11) Бухгалтерия: Service Advertisement Protocol, Standard Accounting Procedures, Statements on Auditing Procedure, Systems Applications Products, Положения по процедурам аудита (Statements on Auditing Procedures), Принципы ведения бухгалтерскогоучёта, предписанные законом (Statutory Accounting Principles)
12) Страхование: Statutory Accounting Principals13) Автомобильный термин: Standard Corporate Protocol14) Грубое выражение: Stupid American Public, Surely A Pedophile15) Оптика: stress-applying part16) Телекоммуникации: протокол предлагаемых услуг, Service Advertising Protocol (NetWare), Service Access Point (generic)17) Сокращение: Seaborne Air Platform, Second Audio Program, Semi-Armour Piercing, Sensing And Processing unit, Shijiazhuang Aircraft Plant (China), Simulated Attack Profile, Soon As Possible, South African Police (South Africa), Special Access Program (USA), Special Access Program18) Университет: Satisfactory Academic Progress, Scientific Agricultural Partnership, Standard Assessment Performance, Student Assistance Program, Students Aid Project, Students Alumni And Professional, Supply Of Academic Publications19) Электроника: Secondary Audio Program20) Вычислительная техника: Service Access Point, Service Advertising Protocol, symbolic address program, symbolic assembly program, system assist processor, Symbolic Assembler Program (IBM, IBM 704), Session Announcement Protocol (Internet, RFC 2974), Service Advertising Protocol (Novell, Netware, IPX), Service Access Point (OSI), Service Access Point (OSI, Networking), Systems, Applications and Products (in data processing, ag, Hersteller), компания SAP, система компании SAP21) Нефть: An enterprise resource system, программы структурной перестройки, бухгалтерская программа SAP22) Иммунология: Serum Amyloid P23) Транспорт: Suitcase And Passport24) Фирменный знак: System Application And Products, System Application Products, Systems Applications And Programming, Systems, Applications and Products in Data Processing26) Деловая лексика: Safety Awareness Program, Systems Applications Production, описание процедуры отчётности, описание процедуры ревизии (Statement on Auditing Procedure)27) Глоссарий компании Сахалин Энерджи: System, Application and Products for Data Processing28) Образование: Science Activity Planner, Solves All Problems, Standard Assessment Procedure, Standard Assessment Program, State Advisory Panel for Special Education, Student Assistance Plan, Substance Abuse Professional29) Сетевые технологии: Service Announcement Protocol, Start Of Active Profile, System Area Pointer, протокол извещения об услугах, протокол объявления об услугах, протокол представления услуг, протокол рекламного сетевого сервиса, протокол с объявлением о служебных средствах31) Медицинская техника: Super Absorbent Polymer - впитывающий полимер (применяется во впитывающей продукции, напр. в подгузниках)32) Химическое оружие: sampling and analysis plan, strategic action plan33) Трудовое право: Разрешение на доступ на рабочую площадку (Site Access Permit)34) Расширение файла: Session Announcement Protocol, System Assurance Program, Service Access Point (DEC), Systems, Applications and Products (company)35) Майкрософт: протокол SAP36) Общественная организация: Scholarship Assistance Program37) Должность: Substance Abuse Professionals38) Чат: Soft And Pretty39) NYSE. S A P, A. G.40) Аэропорты: San Pedro Sula, Honduras41) Программное обеспечение: System Analysis and Program Development, System Application Product42) Базы данных: Systems Applications Processing -
37 sap
1) Общая лексика: hum. сокр. Sensitive To Antimicrobial Peptides, hum. сокр. Slam Associated Protein, social action program, Site Access Permit (SEIC), старшее ответственное лицо (Senior Authorised Person, напр. http://www.indeed.co.uk/jobs?q=Senior+Authorised+Person&l=London)2) Компьютерная техника: System Application Program, Systems Application Products, Systems, Applications, and Products3) Медицина: statistical analysis plan, план статистического анализа, нарколог (substance abuse professional), substance abuse professional - нарколог (сокр.)4) Американизм: Scientific Advisory Panel, State Assessment Panel, Statements of Administration Policy, Statutory Adoption Pay, Stop All Progress, Substance Abuse Prevention5) Спорт: Slight Atari Player6) Военный термин: System Acquisition Plan, search and attack pattern, security assistance plan, security assistance program, semiarmor-piercing, shipboard antenna pedestal, standing air patrol, strategic advantages profile, structural analysis program, supervisory airplane pilot, system alignment procedure7) Техника: safety assessment principles, severe accident program, sintered aluminum powder, solar array program, startup administrative procedure, statements on auditing procedures, system acquisition process8) Шутливое выражение: Satan's Accounting Program, Slow And Painful, Somewhat Academic Privacy, Son Af a Pitch9) Религия: Share And Prayer10) Юридический термин: Special Assistance Pass, Substance Abuse Panel, Substance Abuse Program11) Бухгалтерия: Service Advertisement Protocol, Standard Accounting Procedures, Statements on Auditing Procedure, Systems Applications Products, Положения по процедурам аудита (Statements on Auditing Procedures), Принципы ведения бухгалтерскогоучёта, предписанные законом (Statutory Accounting Principles)
12) Страхование: Statutory Accounting Principals13) Автомобильный термин: Standard Corporate Protocol14) Грубое выражение: Stupid American Public, Surely A Pedophile15) Оптика: stress-applying part16) Телекоммуникации: протокол предлагаемых услуг, Service Advertising Protocol (NetWare), Service Access Point (generic)17) Сокращение: Seaborne Air Platform, Second Audio Program, Semi-Armour Piercing, Sensing And Processing unit, Shijiazhuang Aircraft Plant (China), Simulated Attack Profile, Soon As Possible, South African Police (South Africa), Special Access Program (USA), Special Access Program18) Университет: Satisfactory Academic Progress, Scientific Agricultural Partnership, Standard Assessment Performance, Student Assistance Program, Students Aid Project, Students Alumni And Professional, Supply Of Academic Publications19) Электроника: Secondary Audio Program20) Вычислительная техника: Service Access Point, Service Advertising Protocol, symbolic address program, symbolic assembly program, system assist processor, Symbolic Assembler Program (IBM, IBM 704), Session Announcement Protocol (Internet, RFC 2974), Service Advertising Protocol (Novell, Netware, IPX), Service Access Point (OSI), Service Access Point (OSI, Networking), Systems, Applications and Products (in data processing, ag, Hersteller), компания SAP, система компании SAP21) Нефть: An enterprise resource system, программы структурной перестройки, бухгалтерская программа SAP22) Иммунология: Serum Amyloid P23) Транспорт: Suitcase And Passport24) Фирменный знак: System Application And Products, System Application Products, Systems Applications And Programming, Systems, Applications and Products in Data Processing26) Деловая лексика: Safety Awareness Program, Systems Applications Production, описание процедуры отчётности, описание процедуры ревизии (Statement on Auditing Procedure)27) Глоссарий компании Сахалин Энерджи: System, Application and Products for Data Processing28) Образование: Science Activity Planner, Solves All Problems, Standard Assessment Procedure, Standard Assessment Program, State Advisory Panel for Special Education, Student Assistance Plan, Substance Abuse Professional29) Сетевые технологии: Service Announcement Protocol, Start Of Active Profile, System Area Pointer, протокол извещения об услугах, протокол объявления об услугах, протокол представления услуг, протокол рекламного сетевого сервиса, протокол с объявлением о служебных средствах31) Медицинская техника: Super Absorbent Polymer - впитывающий полимер (применяется во впитывающей продукции, напр. в подгузниках)32) Химическое оружие: sampling and analysis plan, strategic action plan33) Трудовое право: Разрешение на доступ на рабочую площадку (Site Access Permit)34) Расширение файла: Session Announcement Protocol, System Assurance Program, Service Access Point (DEC), Systems, Applications and Products (company)35) Майкрософт: протокол SAP36) Общественная организация: Scholarship Assistance Program37) Должность: Substance Abuse Professionals38) Чат: Soft And Pretty39) NYSE. S A P, A. G.40) Аэропорты: San Pedro Sula, Honduras41) Программное обеспечение: System Analysis and Program Development, System Application Product42) Базы данных: Systems Applications Processing -
38 central
'sentrəl1) (belonging to or near the centre (eg of a town): His flat is very central.) central2) (principal or most important: the central point of his argument.) principal•- centralise
- centralization
- centralisation
- centrally
- central heating
- central processing unit
central adj central
central adjetivo central ■ sustantivo femenino head office; central hidroeléctrica/nuclear hydroelectric/nuclear power station
central
I adjetivo central
II sustantivo femenino
1 (oficina principal) head office
central de correos, main post office
2 Elec (planta de generación de energía) power station
central hidroeléctrica, hydroelectric power station
central nuclear, nuclear power station
central térmica, coal-fired power station ' central' also found in these entries: Spanish: administración - América - calefacción - Centroamérica - centroamericana - centroamericano - centroeuropea - centroeuropeo - cierre - energía - granítica - granítico - hidroeléctrica - hidroeléctrico - jefatura - jugar - lechera - lechero - mediana - reclamar - térmica - térmico - céntrico - eje - funcionamiento - interior - isla - jardín - Mesoamérica - plática - platicar - plato - separador - sos - vos English: America - central - Central America - Central Europe - central government - central heating - CIA - core memory - CPU - focal point - government - headquarters - main - middle - point - power plant - power station - thrust - Central - central reservation - CST - dairy - devolution - essence - exchange - focal - focus - head - heart - home - key - median - Midwest - nuclear - OCAS - power - put - telephonetr['sentrəl]1 (government, bank, committee) central2 (of, at or near centre) céntrico,-a3 (main, principal) principal, fundamental■ central character personaje central, personaje principal\SMALLIDIOMATIC EXPRESSION/SMALLto be central to something ser fundamental para algoCentral African Republic República Centroafricanacentral heating calefacción nombre femenino centralcentral locking cierre nombre masculino centralizadocentral nervous system sistema nombre masculino nervioso centralcentral processing unit unidad nombre femenino central de procesocentral reservation SMALLBRITISH ENGLISH/SMALL medianacentral ['sɛntrəl] adj1) : céntrico, centralin a central location: en un lugar céntrico2) main, principal: central, fundamental, principaladj.• central adj.• centralizado, -a adj.n.• central s.m.'sentrəlto be central TO something: this is central to the success of the project — esto es fundamental para que el proyecto sea un éxito
2) ( in the center) <area/street> céntrico['sentrǝl]our office is very central — nuestra oficina está en una zona céntrica or en un lugar muy céntrico
1. ADJ1) (=in the middle) centralthe houses are arranged around a central courtyard — las casas están distribuidas alrededor de un patio central
2) (=near the centre of town) [house, office, location] céntrico3) (=principal) [figure, problem, idea, fact] central, fundamental; [role] fundamental; [aim] principalof central importance — de la mayor importancia, primordial
the issue of Aids is central to the plot of the film — el tema del SIDA es fundamental en el argumento de la película
4) (Admin, Pol) [committee, planning, control etc] central2.N (US) (=exchange) central f telefónica3.CPDCentral America N — Centroamérica f, América f Central
Central Asia N — Asia f Central
central bank N — banco m central
central casting N — (Cine) departamento m de reparto or casting
a Texan farmer straight from or out of central casting — hum un granjero tejano de pura cepa or con toda la barba
Central Daylight Time N — (US) horario m de verano de la zona central (de Estados Unidos)
Central Europe N — Europa f Central
central government N — gobierno m central
central heating N — calefacción f central
central locking N — (Aut) cierre m centralizado
central nervous system N — sistema m nervioso central
central processing unit N — (Comput) unidad f central de proceso
central reservation N — (Brit) (Aut) mediana f
Central African, Central American, Central Asian, Central EuropeanCentral Standard Time N — (US) horario m de la zona central (de Estados Unidos)
* * *['sentrəl]to be central TO something: this is central to the success of the project — esto es fundamental para que el proyecto sea un éxito
2) ( in the center) <area/street> céntricoour office is very central — nuestra oficina está en una zona céntrica or en un lugar muy céntrico
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39 central
['sentrəl]1) (belonging to or near the centre (eg of a town): His flat is very central.) central2) (principal or most important: the central point of his argument.) central•- centralise
- centralization
- centralisation
- centrally
- central heating
- central processing unit* * *cen.tral[s'entrəl] n Amer central telefônica. • adj 1 central, situado no centro, relativo ao centro. 2 fig principal, básico, fundamental. central nervous system n sistema nervoso central. central processing unit n Comp unidade central de processamento. -
40 BIOS
['baios] n. shkurtesë nga b asic i nput o utput s ystem ( BIOS) sistemi themelor për hyrje-dalje ( informatikë)What is BIOS?BIOS is an acronym for Basic Input/Output System. It is the boot firmware program on a PC, and controls the computer from the time you start it up until the operating system takes over. When you turn on a PC, the BIOS first conducts a basic hardware check, called a Power-On Self Test (POST), to determine whether all of the attachments are present and working. Then it loads the operating system into your computer's random access memory, or RAM.The BIOS also manages data flow between the computer's operating system and attached devices such as the hard disk, video card, keyboard, mouse, and printer.The BIOS stores the date, the time, and your system configuration information in a battery-powered, non-volatile memory chip, called a CMOS (Complementary Metal Oxide Semiconductor) after its manufacturing process.Although the BIOS is standardized and should rarely require updating, some older BIOS chips may not accommodate new hardware devices. Before the early 1990s, you couldn't update the BIOS without removing and replacing its ROM chip. Contemporary BIOS resides on memory chips such as flash chips or EEPROM (Electrically Erasable Programmable Read-Only Memory), so that you can update the BIOS yourself if necessary.For detailed information about BIOS updates, visit:What is firmware?Firmware consists of programs installed semi-permanently into memory, using various types of programmable ROM chips, such as PROMS, EPROMs, EEPROMs, and flash chips.Firmware is non-volatile, and will remain in memory after you turn the system off.Often, the term firmware is used to refer specifically to boot firmware, which controls a computer from the time that it is turned on until the primary operating system has taken over. Boot firmware's main function is to initialize the hardware and then to boot (load and execute) the primary operating system. On PCs, the boot firmware is usually referred to as the BIOS.What is the difference between memory and disk storage?Memory and disk storage both refer to internal storage space in a computer.The term memory usually means RAM (Random Access Memory). To refer to hard drive storage, the terms disk space or storage are usually used.Typically, computers have much less memory than disk space, because RAM is much more expensive per megabyte than a hard disk. Today, a typical desktop computer might come with 512MB of RAM, and a 40 gigabyte hard disk.Virtual memory is disk space that has been designated to act like RAM.Computers also contain a small amount of ROM, or read-only memory, containing permanent or semi-permanent (firmware) instructions for checking hardware and starting up the computer. On a PC, this is called the BIOS.What is RAM?RAM stands for Random Access Memory. RAM provides space for your computer to read and write data to be accessed by the CPU (central processing unit). When people refer to a computer's memory, they usually mean its RAM.New computers typically come with at least 256 megabytes (MB) of RAM installed, and can be upgraded to 512MB or even a gigabyte or more.If you add more RAM to your computer, you reduce the number of times your CPU must read data from your hard disk. This usually allows your computer to work considerably faster, as RAM is many times faster than a hard disk.RAM is volatile, so data stored in RAM stays there only as long as your computer is running. As soon as you turn the computer off, the data stored in RAM disappears.When you turn your computer on again, your computer's boot firmware (called BIOS on a PC) uses instructions stored semi-permanently in ROM chips to read your operating system and related files from the disk and load them back into RAM.Note: On a PC, different parts of RAM may be more or less easily accessible to programs. For example, cache RAM is made up of very high-speed RAM chips which sit between the CPU and main RAM, storing (i.e., caching) memory accesses by the CPU. Cache RAM helps to alleviate the gap between the speed of a CPU's megahertz rating and the ability of RAM to respond and deliver data. It reduces how often the CPU must wait for data from main memory.What is ROM?ROM is an acronym for Read-Only Memory. It refers to computer memory chips containing permanent or semi-permanent data. Unlike RAM, ROM is non-volatile; even after you turn off your computer, the contents of ROM will remain.Almost every computer comes with a small amount of ROM containing the boot firmware. This consists of a few kilobytes of code that tell the computer what to do when it starts up, e.g., running hardware diagnostics and loading the operating system into RAM. On a PC, the boot firmware is called the BIOS.Originally, ROM was actually read-only. To update the programs in ROM, you had to remove and physically replace your ROM chips. Contemporary versions of ROM allow some limited rewriting, so you can usually upgrade firmware such as the BIOS by using installation software. Rewritable ROM chips include PROMs (programmable read-only memory), EPROMs (erasable read-only memory), EEPROMs (electrically erasable programmable read-only memory), and a common variation of EEPROMs called flash memory.What is an ACPI BIOS?ACPI is an acronym that stands for Advanced Configuration and Power Interface, a power management specification developed by Intel, Microsoft, and Toshiba. ACPI support is built into Windows 98 and later operating systems. ACPI is designed to allow the operating system to control the amount of power provided to each device or peripheral attached to the computer system. This provides much more stable and efficient power management and makes it possible for the operating system to turn off selected devices, such as a monitor or CD-ROM drive, when they are not in use.ACPI should help eliminate computer lockup on entering power saving or sleep mode. This will allow for improved power management, especially in portable computer systems where reducing power consumption is critical for extending battery life. ACPI also allows for the computer to be turned on and off by external devices, so that the touch of a mouse or the press of a key will "wake up" the computer. This new feature of ACPI, called OnNow, allows a computer to enter a sleep mode that uses very little power.In addition to providing power management, ACPI also evolves the existing Plug and Play BIOS (PnP BIOS) to make adding and configuring new hardware devices easier. This includes support for legacy non-PnP devices and improved support for combining older devices with ACPI hardware, allowing both to work in a more efficient manner in the same computer system. The end result of this is to make the BIOS more PnP compatible.What is CMOS?CMOS, short for Complementary Metal Oxide Semiconductor, is a low-power, low-heat semiconductor technology used in contemporary microchips, especially useful for battery-powered devices. The specific technology is explained in detail at:http://searchsmb.techtarget.com/sDefinition/0,,sid44_gci213860,00.htmlMost commonly, though, the term CMOS is used to refer to small battery-powered configuration chips on system boards of personal computers, where the BIOS stores the date, the time, and system configuration details.How do I enter the Setup program in my BIOS?Warning: Your BIOS Setup program is very powerful. An incorrect setting could cause your computer not to boot properly. You should make sure you understand what a setting does before you change it.You can usually run Setup by pressing a special function key or key combination soon after turning on the computer, during its power-on self test (POST), before the operating system loads (or before the operating system's splash screen shows). During POST, the BIOS usually displays a prompt such as:Press F2 to enter SetupMany newer computers display a brief screen, usually black and white, with the computer manufacturer's logo during POST.Entering the designated keystroke will take you into the BIOS Setup. Common keystrokes to enter the BIOS Setup are F1, F2, F10, and Del.On some computers, such as some Gateway or Compaq computers, graphics appear during the POST, and the BIOS information is hidden. You must press Esc to make these graphics disappear. Your monitor will then display the correct keystroke to enter.Note: If you press the key too early or too often, the BIOS may display an error message. To avoid this, wait about five seconds after turning the power on, and then press the key once or twice.What's the difference between BIOS and CMOS?Many people use the terms BIOS (basic input/output system) and CMOS (complementary metal oxide semiconductor) to refer to the same thing. Though they are related, they are distinct and separate components of a computer. The BIOS is the program that starts a computer up, and the CMOS is where the BIOS stores the date, time, and system configuration details it needs to start the computer.The BIOS is a small program that controls the computer from the time it powers on until the time the operating system takes over. The BIOS is firmware, which means it cannot store variable data.CMOS is a type of memory technology, but most people use the term to refer to the chip that stores variable data for startup. A computer's BIOS will initialize and control components like the floppy and hard drive controllers and the computer's hardware clock, but the specific parameters for startup and initializing components are stored in the CMOS.
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