Dell Precision 410 User Manual page 176

Dell Precision 410 Mini Tower Systems User's Guide
B-18
addressed by MS-DOS–based programs without the aid of some special memory-
managing software.
Table B-10 provides a map of the conventional memory area. When the micro-
processor or a program addresses a location within the conventional memory range, it
is physically addressing a location in main memory, which is the only main memory it
can address under MS-DOS.
$GGUHVV 5DQJH
00000h–003FFh
00400h–004FFh
00500h–005FFh
00600h–0FFFFh
10000h–1FFFFh
20000h–2FFFFh
30000h–3FFFFh
40000h–4FFFFh
50000h–5FFFFh
60000h–6FFFFh
70000h–7FFFFh
80000h–8FFFFh
90000h–9FBFFh
NOTE: For the full name of an abbreviation or acronym used in this table,
see the Glossary.
Table B-11 provides a map of the upper memory area. Some of these addresses are
dedicated to various system devices, such as the system BIOS. Others are available
for use by expansion cards and/or an expanded memory manager (EMM). When the
microprocessor or a program addresses a location within the upper memory area, it is
physically addressing a location within one of these devices.
8VH
Interrupt vector table
BIOS data area
MS-DOS and BASIC work area
User memory
User memory
User memory
User memory
User memory
User memory
User memory
User memory
User memory
User memory