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MAPI- compatible applications include a Send Mail or Send in the File menu of the application. Glossary 118 nN Term Definition Sony Notebook User Guide maximum RAM The maximum amount of RAM that your computer can contain. Once this amount is reached, you can no longer add additional RAM to your computer. Motherboard The motherboard is the main circuit board inside your computer. It holds the CPU, the BIOS, the memory and so on. MPEG MPEG or Moving Pictures Experts Group is a standard for audio- visual compression of video sequences. MPEG achieves high compression rates by storing only the changes from one frame to another. The decrease in data is generally imperceptible to the human eye. MPEG-1 was developed for digital storage of video and audio data on CD-ROM. MPEG- 2 achieves better image and audio quality and is more targeted to TV broadcasting and DVD. Operating system The operating system is software that manages all the other programs in a computer. It defines how the computer reads and writes information to its disks (and other hardware). Windows 2000, Windows Millennium Edition, Windows XP Professional and Windows XP Home Edition are examples of operating systems found on VAIOs. Partition A partition is a logical division of a computer’s hard disk. A two- partition hard drive would typically contain C: and D: drives. Partitioning is particularly useful if you run more than one operating system or to clearly separate your data files from your installed software. PBX A PBX (Private Branch Exchange) is a private telephone network within an enterprise. Under this system, the calls between the enterprise members are local and the phone numbers are made up of 3 or 4 digits. Companies generally choose this phone system for internal communication because it is less expensive than the regular network. The users can still share a number of outside lines for making calls external to the PBX. PC Card A PCMCIA card. The term PC Card is more widely used than PCMCIA. See PCMCIA. Glossary 119 nN Term Definition Sony Notebook User Guide PCMCIA PCMCIA (Personal Computer Memory Card International Association) is the name of the group that produced the specification for the credit card- sized plug- in boards for laptop computers. The cards used to be called PCMCIA cards, but as this was rather unpronounceable, these cards are now termed PC cards. An example of a PC card is a credit card- sized modem. Pixel A pixel ( Picture Element) is a part of your screen. Your screen is made up of thousands of pixels, enabling you to see colours and pictures on it. The more pixels, the higher the resolution and the better the image quality. Port replicator An additional device that you can connect to your notebook. The port replicator contains ports that enable you to connect additional peripherals (such as a printer or a monitor) to your VAIO. A port replicator is similar to a docking station, but does not include additional slots for adding expansion boards or storage devices. Processor The processor is the brains of the computer; it processes the instructions of your system’s programs. The processor is also known as the CPU or microprocessor and can be found on the motherboard (see this word) of your computer. Product recovery CD-ROM The product recovery CD-ROMs include the application recovery CD-ROM and the system recovery CD-ROM(s) PS/2 A type of mouse or keyboard port. PSTN PSTN (Public Switched Telephone Network) refers to the plain old telephone the national telecommunication networks implementing voice transmission by using analog signals. RAM Short for Random Access Memory, the memory used to run programs and store in current use. RAM is the fastest kind of memory to read from and write to. Information stored in RAM is lost when you turn off the computer. The higher the RAM capacity, the faster your current data can be processed. Glossary 120 nN Term Definition Sony Notebook User Guide Resolution The degree of sharpness and clarity of an image. Resolution is expressed in pixels. Frequent computer screen resolutions are 640 x 480 pixels (VGA resolution; appropriate for a 14-inch screen), 800 x 600 (appropriate for a 15-inch screen), 1,024 by 768 (appropriate for a 17-inch screen), and 1,280 by 1,024. LCD displays usually use a higher resolution than a CRT of the same size. RGB signal cable RGB stands for Red, Green, Blue. A cable that requires separate transmission types for the three colours on the display. SDRAM Synchronous DRAM is a kind of dynamic random access memory running at a much higher clock speed than regular memory. Standard RAM The amount of RAM that is available on your computer when you purchase it. System recovery A recovery process that enables you to recover the hard disk image initially available on the computer. Performing a system recovery is useful in the event of a serious system crash or if you want to modify the size of your partitions. System recovery CD-ROM CD- ROM that is supplied with your co...