Glossary - H

4 A B C D E F H I K L M N O P R S T U V W X 

Hidden:  A file attribute indicating that the file should not be displayed 
with a normal DIR command, and should not be made available to programs 
unless they specifically request access to hidden files. 

History Window:  See Command History Window and Directory History. 

History:  See Command History. 

HMA or High Memory Area:  The area of PC memory located in the first 64K 
bytes above the 1 megabyte that DOS can address directly.  The HMA can be 
made addressable from DOS programs using special hardware facilities, or 
an XMS driver. 

HPFS or High Performance File System:  A file system distributed with OS/2 
and Windows NT 3.51 and below which allows longer file names, supports 
larger drives, and provides better performance than the traditional FAT 
file system.