programs use these functions, which are explained in the External Plug and
Play Interfaces Specification. Without the nolock option, the CM driver
requires an additional 30 kilobytes of memory. This parameter does not
affect the locking feature under the Advanced menu of the ICU. forces the
Configuration Manager to remain resident in memory. By default, the CM
dynamically loads into memory whenever a runtime function is called, and
unloads from memory when the function is done. This option increases the
amount of conventional memory used by the CM by at least 20 Kbytes(unless
the CM driver is loaded into high memory, as explained later in this
appendix).