EPC-9 Hardware Reference
F-4
F
F
D
Default: The state of all user-changeable hardware and software settings as they are
originally configured before any changes are made.
Disk Operating System (DOS): One or more programs which allow a computer to
use a disk drive as an external storage device. These programs manage
storage and retrieval of data to and from the disk and interpret commands
from the computer operator.
Driver: A software component of the operating system which directs the computer
interface with a hardware device. The software interface to the driver is
standardized such that application software calling the driver requires no
specific operational information about the hardware device.
Dual In-Line Package (DIP): A semiconductor package configuration consisting of a
rectangular plastic case with two rows of pins, one row on each lengthwise
side.
Dynamic Random Access Memory (DRAM): Semiconductor RAM memory devices
in which the stored data will not remain permanently stored, even with the
power applied, unless the data are periodically rewritten into memory during
a refresh operation.
E
Electrically Erasable Programmable ROM (EEPROM): Specifically, those
EPROMs which may be erased electrically as compared to other erasing
methods.
Error Checking and Correction: A feature of the T2 chipset that enables it to detect
single or multi-bit errors in DRAM reads and correct single bit errors. This
feature requires that all banks of DRAM use x36 (parity) SO DIMMs.
Extended Capabilities Port (ECP): An enhancement of the standard PC parallel port
that allows high speed bi-directional data transfers and other features.
Extended Data Out (EDO): A type of DRAM that allows higher memory system
performance since the data pins are still driven when CAS# is de-asserted.
This allows the next DRAM address to be presented to the device sooner
than with Fast Page Mode DRAM.
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