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Okuma America Corporation
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erminologyerminology
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erminology
Rev. 1-16-01
Clock A device usually based on a quartz crystal that gives off
regular pulses used to coordinate a computers’ operations.
CMOS Complementary metal-oxide semiconductor
CNC Computerized Numerical Control
CPU Central Processing Unit
CRP CRT Processor board
CRT Cathode-Ray Tube
DA Digital to Analog
Data bus The wires in a computer that carry data to and from
memory locations.
DBR Dynamic Braking Resistor
DCPS Drive Control Power Supply
DDB Digital Data Bus
DMA Direct Memory Access
DMAC Direct Memory Access Controller
DNC Distributed Numerical Control
DRAM Dynamic Random Access Memory
EC/EO I/O board on Okuma Lathes and Grinders
ECP Electrical Control Processor board
I/O control board on Okuma M/C’s
EIA Electronics Industries Association
EEPROM Electrically Erasable Programmable Read Only Memory
EPROM Erasable Programmable Read Only Memory
FCOM Fieldnet Common terminal card
FDC Floppy Disk Controller board
FDD Floppy Disk Drive unit
Fiber Optics The technology of encoding data or pulses of laser
light beamed through thin strands of glass.
FIPC2 Field Input Photocoupler card
FOPT Fieldnet Output Power Transistor card
Flash Memory Flash memory is a combination of EPROM and EEPROM
technology. A non-volatile storage device.
FMS Flexible Machining Systems
FUB-DR Fieldnet Unit Board-Driver/Receiver board
FUB-P4M4 Fieldnet Unit Board-Photocoupler(4 bytes)MOS-FET(4-
bytes)
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