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Do u Know ?
A digital video disc (DVD) looks like a CD-ROM disc, but it can store greater amounts of data. DVDs are often used to store full-length movies and other multimedia content that requires large amounts of storage space. DVD s can store in the range of 9 GB.
DirectX
An extension of the Microsoft Windows operating system. DirectX technology helps games and other programs use the advanced multimedia capabilites of your hardware.
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Acronyms:
Acronyms:
Extensible Markup Language (XML)
Hypertext Transfer Protocol (HTTP)
Open Database Connectivity (ODBC)
Domain Name System (DNS)
dynamic-link library (DLL)
Point-to-Point Protocol (PPP)
application programming interface (API)
Musical Instrument Digital Interface (MIDI)
Time to Live (TTL) value
Multipurpose Internet Mail Extensions (MIME)
small computer system interface (SCSI)
Transmission Control Protocol/Internet Protocol (TCP/IP)
Common Gateway Interface (CGI) is a commuinication standard. Scripts are usually written in a programming language known as perl.
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Secure Sockets Layer (SSL)
Secure Sockets Layer (SSL)
A proposed open standard for establishing a secure communications channel to prevent the interception of critical information, such as credit card numbers. Primarily, it enables secure electronic financial transactions on the World Wide Web, although it is designed to work on other Internet services as well.
Local area network (LAN)
A communications network connecting a group of computers, printers, and other devices located within a relatively limited area (for example, a building). A LAN enables any connected device to interact with any other on the network.
Recycle Bin
The place in which Windows stores deleted files. You can retrieve files you deleted in error, or you can empty the Recycle Bin to create more disk space.
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metadata
metadata
Data about data. For example, the title, subject, author, and size of a file constitute the file's metadata.
modem (modulator/demodulator)
A device that enables computer information to be transmitted and received over a telephone line. The transmitting modem translates digital computer data into analog signals that can be carried over a telephone line. The receiving modem translates the analog signals back to digital form.
multimedia streaming
Playing audio and video immediately as it is downloaded from a network, rather than storing it in a file first.
Nslookup
A command-line tool used to diagnose DNS infrastructure.
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NTFS file system
NTFS file system
An advanced file system that provides performance, security, reliability, and advanced features that are not found in any version of file allocation table (FAT). NTFS also provides advanced features, such as file and folder permissions, encryption, disk quotas, and compression.
packet switching
A technology for breaking data into packets and then sending the packets over a network. Each packet has a header containing its source and destination, a sequence number to reassemble the information, a block of data content, and an error-checking code. The data packets may take different routes to their destination, where the original information is reassembled after the packets arrive. The international standard for packet switching networks is X.25.
parallel port
The input/output connector for a parallel interface device. Printers are generally plugged into a parallel port.
serial port
An interface on the computer that allows asynchronous transmission of data characters one bit at a time. Also called a communication port or COM port.
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parent domain
parent domain
For DNS and Active Directory, domains that are located in the namespace tree directly above other derivative domain names (child domains). For example, microsoft.com would be the parent domain for example.microsoft.com, a child domain.
partition
A portion of a physical disk that functions as though it were a physically separate disk. After you create a partition, you must format it and assign it a drive letter before you can store data on it.
path
A sequence of directory (or folder) names that specifies the location of a directory, file, or folder within the Windows directory tree. Each directory name and file name within the path must be preceded by a backslash (\). For example, to specify the path of a file named Readme.doc located in the Windows directory on drive C, type C:\Windows\Readme.doc.
ping
A utility that verifies connections to one or more remote hosts. The ping command uses Internet Control Message Protocol (ICMP) echo request and echo reply packets to determine whether a particular Internet Protocol (IP) system on a network is functional. Ping is useful for diagnosing IP network or router failures.
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pixel
Pixel
Short for picture element, one spot in a rectilinear grid of thousands of such spots that form an image produced on the screen by a computer or on paper by a printer. A pixel is the smallest element that display or print hardware and software can manipulate to create letters, numbers, or graphics. Also called a pel.
Plug and Play
A set of specifications developed by Intel Corporation that enables a computer to detect and configure a device automatically and install the appropriate device drivers.
point of presence (POP)
The local access point for a network provider. Each POP provides a telephone number that allows users to make a local call for access to online services.
POP3 (Post Office Protocol 3)
A popular protocol used for receiving e-mail messages. This protocol is often used by Internet service providers (ISPs).
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port
port
A connection point on your computer where you can connect devices that pass data into and out of a computer. For example, a printer is typically connected to a parallel port (also called an LPT port), and a modem is typically connected to a serial port (also called a COM port).
PostScript
A page-description language (PDL), developed by Adobe Systems for printing on laser printers. PostScript offers flexible font capability and high-quality graphics.
partition
A portion of a physical disk that functions as though it were a physically separate disk. After you create a partition, you must format it and assign it a drive letter before you can store data on it.
refresh rate
The frequency with which the video screen is retraced to prevent the image from flickering. The entire image area of most monitors is refreshed approximately 60 times per second.
registry
A database repository for information about a computer's configuration. The registry contains information that Windows continually references during operation such as:
Profiles for each user , the programs installed on the computer and the types of documents that each can create, property settings for folders and program icons, what hardware exists on the system, which ports are being used, the registry is organized hierarchically as a tree, and it is made up of keys and their subkeys, hives, and entries.
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RS-232-C standard
RS-232-C standard
An accepted industry standard for serial communication connections. Recommended Standard (RS).
Safe Mode
A method of starting Windows using basic files and drivers only, without networking. Safe Mode is available by pressing the F8 key when prompted during startup. This allows you to start your computer when a problem prevents it from starting normally.
screen resolution
The setting that determines the amount of information that appears on your screen, measured in pixels. Low resolution, such as 640 x 480, makes items on the screen appear large, although the screen area is small. High resolution, such as 1024 x 768, makes the overall screen area large, although individual items appear small.
screen saver
A moving picture or pattern that appears on your screen when you have not used the mouse or keyboard for a specified period of time.
sector
A 512-byte unit of physical storage on a hard disk. Windows file systems allocate storage in clusters, where a cluster is one or more contiguous sectors.
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Computer terminology
server
In general, a computer that provides shared resources to network users.
shared resource
Any device, data, or program that is used by more than one program or one other device. For Windows, shared resource refers to any resource that is made available to network users, such as folders, files, printers, and named pipes. Shared resource can also refer to a resource on a server that is available to network users.
shortcut
A link to any item accessible on your computer or on a network, such as a program, file, folder, disk drive, Web page, printer, or another computer. You can put shortcuts in various areas, such as on the desktop, on the Start menu, or in specific folders.
signed driver
A driver that meets the criteria of the Windows Logo Program. For performance and stability, Microsoft strongly recommends that you use only signed drivers for new or updated drivers.
Simple Mail Transfer Protocol (SMTP)
A member of the TCP/IP suite of protocols that governs the exchange of electronic mail between message transfer agents.
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