| A | B |
|---|
| (BIOS) | is the set of programs called firmware that perfroms many fundamental input and output operations. |
| Bios on the system board | can be permanently etched onto a ROM microchip or can be changed electronically. |
| ROM chips | that can be changed electronically are called Flash rom or electonically eraseable programmable read-only memory (EEPROM). |
| Flash rom | allows you yo upgrade the programs in ROM without replacing the chip. |
| CMOS chip | is a type of RAM storage for configuration information about the computer system. |
| BIOS | contains the CMOS setup programs to alter CMOS. |
| Powr on self test | (POST) and includes programs to access CMOS setup. |
| System board | contains the system BIOS or on-board BIOS. |
