Panasonic FP-D350, Руководство пользователя

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7-15
Glossary
of Terms
DMA (Direct Memory Access) A technique for high-speed data transfer between a
device such as LAN network adapter card and the computer memory. DMA bypasses
the Central Processing Unit of the computer, PC or workstation, allowing the device
to transfer a block of information directly across the bus into system memory.
DMI (Desktop Management Interface) A set of APIs outlined by the DMTF, comprising
three components: service layer, component interface and management interface.
DNA (Digital Network Architecture) The network architecture of Digital Equipment
Corporation with eight layers. The DNA is similar in structure to OSI at lower levels,
except that the top three layers of the DNA correspond to the top two layers in the
OSI model.
DNS (Domain Name System) The online distributed database system used by Internet
to map names into IP addresses. DNS servers throughout the connected Internet
implement a hierarchical namespace that allows sites freedom in assigning machine
names and addresses. DNA also supports separate mappings between mail
destinations and IP addresses.
Document Retrieval The ability to search for, select and display a document or its
facsimile from storage.
Domain A group of nodes on a network that form an administrative entity. It could
also be a number of servers grouped together and named to simplify network
administration and security. Every computer on the LAN belongs to at least one
domain. Being logged in on one domain, however, does not limit resources in other
domains to which the user has access permissions.
DOS Disk Operating System comprising one or a suite of programs managing a
disk-based computer system. Dos schedules and supervises work, allocating
computer resources and the operation of peripherals. Versions of Dos from different
vendors exist: Microsoft’s MS-Dos is the most common. Dos 3.1 was the first version
of MS and PC Dos able to support LAN functions separate, of course, from the
network’s own operating system - notably including record and file locking which is
now standard on multi-user systems.
Dos LAN Manager A Dos version of Microsoft’s network operating system LAN
Manager. It gives Named Pipes (an applications interface) support to Dos machines,
enabling them to use the client/server environment.