ram: random access memory, which is commonly referred to as "memory".
rom: read-only memory, read-only memory.
edo: extended data output, expanding data output. With the increasing processing speed of CPU, the data transmission speed of DRAM is correspondingly required to be increased. Generally speaking, the data transmission speed of FPM(Fast Page Model)DRAM is 6-7 ns, while that of EDO DRAM is three times faster than FPM, reaching 2ns. At present, SDRAM(Synchronous DRAM) is the fastest, and its access speed is as high as 1ns.
SDRAM: synchronous dynamic random access memory, also called synchronous DRAM, is a new generation of dynamic memory. It can use the same clock as the CPU bus, so SDRAM memory can greatly improve the performance of the computer compared with EDO memory.
Cache: English means "cellar (where explorers and others store grain and equipment, etc.); The artifact office. " The computer is a cache memory, which is located between the CPU and the main memory DRAM(Dynamic Randon Access Memory), and is a small but high-speed memory, usually composed of SRAM(Static Random Access Memory).
CMOS: the abbreviation of complementary metal oxide semiconductor, which means complementary metal oxide semiconductor (referring to complementary metal oxide semiconductor memory). CMOS is a battery-powered memory (RAM) used in most computers at present. It is an important tool to determine the hardware configuration of the system, optimize the overall performance of the microcomputer and maintain the system. It saves some information about the system hardware settings, which will continue to exist after shutdown (this is completely different from RAM). When the computer is turned on, it needs this information to start the system. If the information retained in CMOS is confused by carelessness or accident, the computer system will not start normally.
PCI: peripheral component interconnection, local bus (bus is a high-speed channel used by computers to transmit information from one device to another). PCI bus is an advanced bus structure at present, and its function is greatly improved compared with other buses. It can support burst read and write operations, and the highest transmission rate can reach 132Mbps. It is one of the fastest buses for data transmission and can support multiple groups of peripheral devices at the same time. PCI is not restricted by CPU processor, and can be compatible with all kinds of existing buses. Its motherboard slot is small, so its cost is low and it is beneficial to popularization.
Seagate: American Seagate hard disk manufacturer. Seagate means "the gateway to the ocean" in English, and often refers to the canal leading to the sea.
quantity: English means "quantity, total quantity". Famous hard disk trademark, Quantum Corporation.
Maxtor: "crystal", American Maxtor hard disk company.
LD: laser disk, also known as laser video disk.
CD: compact disc, compact disc, also called compact disc.
CD-rom: compact disc-read only memory, compact disc-read only memory (storage), also called "read only disc".
vcd: video compact disc, video compact disc, which is commonly referred to as "compact disc".
DVD: Up to now, many people regard DVD as the abbreviation of Digital Video Disc. In fact, since Sony/Philips and Toshiba/time warner Inc. two DVD development groups reached a unified standard for DVD in September 1995, the connotation of DVD has changed greatly, and it has become the English abbreviation of Digital Versatile Disc. Versatile "universal" indicates the diversification of DVD uses, which can be used not only for film and television entertainment, but also for multimedia computers and other fields. At present, it can be divided into five types according to its use: 1? DVD-ROM for computer; 2? Home audio-visual CD-DVD-movie; 3? DVD Audio； for music appreciation; 4? Write once CD-ROM-DVD-R; 5? DVD-RAM, a CD that can be read and written many times.
Modem: Modem is an essential tool for Internet on home computers. The word modem is not found in general English-Chinese dictionaries. It is an abbreviation of MOdulator and DEModulator. Modem is an indispensable external device to realize computer communication. Because the data of a computer is a digital signal, it is necessary to convert the digital signal into an analog signal (modulation signal) suitable for transmission in order to transmit it to another computer or other terminal (such as teletypewriter) at a long distance through transmission lines (such as telephone lines). At the receiving end, it is necessary to restore the received analog signal to the original digital signal, which requires the use of modems.
UPS: short for Uninterruptible Power Supply. It appeared with the birth of computer, and it is one of the important peripheral devices of computer. UPS is a constant-voltage and constant-frequency uninterrupted power supply with energy storage device and inverter as the main component, which is used to protect the computer from losing important data when power is suddenly cut off.
TFT: active matrix color display, referred to as TFT display, is specially used for notebook computers. TFT display has the advantages of fast refresh speed, vivid color and bright brightness. In addition, it also has the necessary characteristics of "green computer" such as no flicker, no radiation and no static electricity.
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Fourth, the famous computer language
VF: also written as VFP, the abbreviation of Visual FoxPro, Visual means "visible" in English, and Fox means "fox", originally referring to American Fox Database Software Company, which has been acquired by Microsoft. Pro is a shorthand for Progress, which means "going to the next level". Visual FoxPro is a powerful, visual and object-oriented database programming language introduced by Microsoft on the basis of FoxPro, and it is also a powerful database management system.
VC: Visual C++,an advanced visual computer programming language of Microsoft Corporation. C language is called one of the greatest contributions to computer programming in recent ten years. It is simple and easy to use in high-level languages, and it can do a lot of work that assembly languages can do. Therefore, C language is especially suitable for writing all kinds of complex software. If BASIC is the programming language for beginners and amateurs, then C is the programming language for professionals.
VB: the abbreviation of Visual Basic, the advanced visual computer programming language of Microsoft Corporation. BASIC is the abbreviation of beginner's all-purpose symbolic instruction code. Quick BASIC, Ture BASIC and so on have been introduced from Basic, and the latest one is Visual Basic introduced by Microsoft. This is a highly functional object-oriented visual programming language.
Delphi: Pronunciation/'delfai/,Delphi, the name of an ancient Greek city, was regarded by the ancient Greeks as the center of the world and was famous for the temple of Apollo. In computer English, it refers to a visual, object-oriented and event-driven computer programming language of Borland Company.
Java: pronunciation /'d? a：v? /,The New English-Chinese Dictionary is translated as "Java Island (Indonesia), Java Coffee". Computer English refers to a new object-oriented programming language introduced by Sun Company. Java integrates many characteristics, such as object-oriented, platform-independent, stable, secure, multithreading, etc., and adds the functions of exception handling and network programming, which is especially suitable for the development of Internet applications and is the key to realize the concept of "one world, one network". All kinds of software written in Java can truly "Write Once,Run anywhere", that is, the same software can run on different computers, whether it is PC, Mac, UNIX computer, set-top box, PDA (Personal Data Assistant) or even intelligent components.
SQL: structure query language. SQL is a concise and set-oriented language in relational database management system. It queries one or more data tables and generates a result data table.
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V. Common important computer English and its abbreviations
p>PC：Personal Computer, personal computer, also known as microcomputer or microcomputer.
NC: Network Computer.
MPC: multimedia personal computer.
MMX is the abbreviation of MultiMedia extensions, and it is an important feature of the sixth generation CPU chip. MMX technology adds 57 instructions specially designed for Video Signal, Audio Signal and Graphical Manipulation to CPU, so MMX CPU greatly improves the multimedia processing function of computer (such as stereo, video, three-dimensional animation, etc.).
Intel Pentium 166mhz mmxtm: Intel Pentium is a Pentium CPU produced by Intel. ? It means "Registered" (registered trademark). 166MHz refers to the CPU clock frequency, and MHz is the abbreviation of Mega Hertz. TM in MMXTM is short for "Trade Mark", which means "registered trademark".
OOP: object oriented programming, object-oriented programming. The so-called "object" is a collection of one or a group of data and the methods and processes for processing these data. Object-oriented programming is completely different from traditional process-oriented programming, which greatly reduces the difficulty of software development and makes programming as simple as building blocks. It is an irresistible trend of computer programming today.
28VGA: 28 refers to the yellow dot spacing (dot spacing) on a color display. The smaller the dot spacing, the finer and better the image will be. This is because every pixel on the color screen is made up of a group of red, green and blue lights. Technically, the three beams of light can not be converged on one point, so there will be a yellow dot spacing, and the smaller the interval. VGA is short for Video Graphics Array.
fat: allocation table, which is used to record the information about how files are scattered and stored in different sectors on the hard disk.
EPA: abbreviation of environmental protection agency, U.S. environmental protection agency. In 1992, the EPA announced the "Energy Star" program, which received a positive response from the international community. As long as you start the computer, you can see the "Energy Star" sign on the screen in a few seconds. The goal of ENERGY STAR is to automatically enter a low-power state when all components of the computer system are inactive, and when the initiative of the components is restored (that is, when the keyboard, mouse, etc. are used), the computer system will automatically return to a fully awake state. For products that meet the Energy Star specifications, EPA will issue the Energy Star logo "EPA POLLUTION PREVENTER", which means "pollution-proof and energy-saving products approved by the US Environmental Protection Agency".
IC card: Intelligent Card.
ATX: a new structural specification for computer chassis, motherboard and power supply.
IDE: integrated circuit device or smart disk device.
dll: dynamic link library.
KB: kilobyte, and kb means kilobytes. K=Kilo, a combining form, means "thousand; Kilometer; Kilogram; Kilometers. " B=Byte, which means "byte", is the smallest storage unit in a computer (one byte can store one English letter and every two bytes can store one Chinese character).
MB: megabyte, MB stands for megabyte. M=Mega, a combining form that means "trillion; Millions. "
GB: gigabyte, and GB means gigabyte. G=Giga, a word-forming component, which means giga; Billion ".
Cai: computer-aided instruction or computer-aided instruction. It will be the most important and popular teaching method in the 21st century.
CAD: computer-aided design.
iso: international standard organization. ISO introduced the ISO 9 series international standards on quality management and quality assurance in 1987, and published the revised standards in 1994. Wherein, the composition I