Although CEMM was called an " expanded memory manager ", it was really a tiny, protected mode, single tasking operating system kernel, also called a virtual machine monitor ( VMM ).
42.
Some digital thermometers are marketed as " basal thermometers " and have extra features such as a larger display, expanded memory functions, or beeping to confirm the thermometer is placed properly.
43.
Because spreadsheets use large amounts of memory, 1 2 3 helped popularize greater RAM capacities in PCs, and especially the advent of expanded memory, which allowed greater than 640k to be accessed.
44.
Celebrated in the media, in politics and in schools, self-esteem had become an end in itself _ a commodity, like expanded memory for a personal computer, that could be installed in a do-it-yourself upgrade.
45.
Instead, they reserved 64 kB of the base RAM for the expanded memory window, where they copied data to and from either extended memory or the hard disk when application programs requested page switches.
46.
EMS 3.2 used a 64 KB region in the upper 384 KB ( upper memory area ) divided into four 16 KB pages which could be used to map portions of the expanded memory.
47.
Pages of memory from expanded memory hardware were accessible through an addressing window placed into a free area in the UMA space, and by exchanging it for other pages when needed to access other memory.
48.
EEMS allowed any 16 KB region in lower RAM to be mapped to expanded memory, as long as it was not associated with interrupts or dedicated I / O memory such as network or video cards.
49.
Extended memory should not be confused with expanded memory, an earlier method for expanding the IBM PC's memory capacity beyond 640 kB ( 655, 360 bytes ) using an expansion card with bank switched memory modules.
50.
The NETROOM 286 / 386 memory manager provided access to expanded memory and extended memory on Intel 80386 or newer systems as well as on Intel 80286 systems based on the Chips and Technologies NEAT chipset.
