B&R Industries Provit 5000, Руководство пользователя

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Provit 5000 User’s Manual 369
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Technical Appendix • Glossary
EDO-RAM
An abbreviation for »Extended Data Out Random Access Memory« Dynamic RAM, which
provides data for the CPU, while the next memory access is being initialized. This increases
speed.
EIDE
An abbreviation for »Enhanced Integrated Drive Electronics« An expansion of the IDE standard.
Enhanced IDE is considered the standard for hardware interfaces. This interface is designed for
drives, with an integrated drive controller.
Ethernet
An IEEE 802.3 standard for networks. Ethernet uses bus or star topology and controls the traffic
on communication lines using the access procedure CSMA/CD (Carrier Sense Multiple Access
with Collision Detection). Network nodes are connected using coaxial cables, optical fiber cables
or twisted pair cabling. Data transfer on an Ethernet network takes place in frames of variable
lengths, which consist of supply and controller information as well as 1500 bytes of data. The
Ethernet standard provides baseband transfers at 10 megabit and 100 megabit per second.
FDD
An abbreviation for »Floppy Disk Drive«
FIFO
An abbreviation for »First In First Out«. A queuing organization method whereby elements are
removed in the same order as they were inserted. The first element inserted is the first one
removed. Such an organization method is typical for a list of documents, which are waiting to be
printed.
Floppy
Also known as a diskette. A round plastic disk with an iron oxide coating, which can store a
magnetic field. When the floppy disk is inserted in a disk drive, it rotates, so that the different
areas (or sectors) of the disk's surface are moved under the read-write head, allowing the
magnetic orientation of the particle to be modified and recorded. Orientation in one direction
represents binary 1, while the reverse orientation represents binary 0.
FPC
An abbreviation for »Flat Panel Controller«
FPD
An abbreviation for »Flat Panel Display«
HDD
An abbreviation for »Hard Disk Drive«