Definition of trim for English Language Learners. : 1  to cut (something) off something else : to remove (something) by cutting. : 2  to make (something) neat by cutting it. : 3  to make the size, amount, or extent of (something) smaller.
Check with your system vendor for the appropriate keystrokes or to see if you need to run a program from MS-DOS or Windows to configure your system. Because the settings you make in the BIOS setup program are stored in the nonvolatile RAM of the CMOS chip, the settings are often called CMOS settings. In the following section, we will review the typical setup process, looking at each screen of a typical Pentium-class system.
CMOS (complementary metal-oxide-semiconductor) is the term usually used to describe the small amount of memory on a computer motherboard that stores the BIOS settings.ost CMOS batteries will last the lifetime of a motherboard, up to 10 years in most cases, but will sometimes need to be replaced. Incorrect or slow system date and time and loss of BIOS settings are major signs of a dead or dying CMOS battery. Replacing them is as easy as swapping out the dead one for a new one.