Compaq 277958-001 - Manual (Page 55)

Learning More About Your Computer 5–17
Understanding Computer Terms
lead-out
An area at the end of a session which indicates that the end of data has
been reached. The first lead-out on a CD is 6750 sectors long. Any
subsequent lead-outs are 2250 sectors, or about 30 seconds.
link
See hyperlink.
link block
A block, also known as a sector, of digital rubbish that is written each
time the recording laser is turned on (before) or off (after) writing a
track or a packet. See also Run-in/Run-out Blocks.
linked multi-session
A CD containing more than one session, in which all (or selected)
data from the various sessions can be seen as if they had been
recorded in a single session.
listserv
See mailing list.
logical block
The smallest addressable space on a CD. Each logical block is
identified by a unique Logical Block Number (LBN), each of which is
assigned in order starting from 0 at the beginning of the CD. Under
the ISO 9660 standard, all data on a CD is addressed in terms of
Logical Block Numbers.
logical format/logical structure/file system
A file system, such as ISO 9660, that translates the sector-by-sector
view of a CD into a virtual tree of directories and files. This system
makes it easier for both people and computers to use the information
on the CD. UDF is another example of a file system that can be used
to write CDs. See UDF.
log on
To gain access to a computer network or the Internet by entering a
user name and password. See network.