User's Manual

Glossary
DLT-V4 Product Manual 79
H
Head The tiny electromagnetic coil and metal pole used to create and read back
the magnetic patterns on the media. Also known as the read/write head.
I
IEC The International Electrotechnical Commission is a standards organization
that prepares and publishes international standards for all electrical, electronic,
and related technologies.
IEEE Institute of Electrical and Electronics Engineers
Interface A hardware or software protocol—contained in the electronics of the
media controller and tape drive—that manages the exchange of data between the
tape drive and computer. The most common interfaces for small computer
systems are AT (IDE) and SCSI.
J
Jumper A tiny connector box that slips over two pins that protrude from a circuit
board. While in place, the jumper connects the pins electrically. The jumper can be
moved to change electrical connections.
K
KB A kilobyte is a unit of measure equal to 1 thousand (1024) bytes.
L
LED Light Emitting Diode.
LVD Low Voltage Differential signalling is an electrical signalling system that
can run at high speeds over cheap, twisted-pair copper cables.
M
µM A Micrometer is an SI unit of length. It is defined as one millionth of a metre
(1 × 10
-6
m), equivalent to one thousandth of a millimeter.
MB Megabyte
SI — 1 000 000 bytes or 10
6
bytes. This is the International System of Units (SI)
definition used by telecommunications engineers and storage manufacturers.
1 048 576 bytes - 1024
2
, or 2
20
. This definition is often used in computer science
and computer programming, when talking about the size of files or computer
memory. The reason is that computers use the binary numeral system internally.
Note: For the purpose of this document we are using SI.
MRC Heads Magneto Resistive Cluster Heads. A cluster of small, Magneto
Resistive (MR) media heads packed densely together.
ms A Millisecond is equal to one thousandth of a second.