Flash ROM improves the performance of a computer by reducing the acces times of data. Since flash ROM is electronically stored, there is no need to spin and search a platter for information like a regular hard disk drive does.
Not ROM - RAM... Increasing the amount of RAM (Random Access Memory) gives the computer more 'workspace' to use - speeding up operations.
Yes.
Some ROM chips, especially "Flash ROMs", can be rewritten by the user, often without special tools. Most ROMs are immutable, however.
Flash RAM is used for temporary data, such as in a USB drive. Flash ROM is used for bios and system files.
Flash memory and Rom I think
perhaps you mean ROM, but your question is unclear. not all computers have ROM. some ROM is indeed writable (e.g. PROM, UVPROM, EPROM, EEPROM, Flash ROM), but writing is much slower than reading and often requires nonstandard voltages not normally available in the operating computer. early ROM technologies even required physical rewiring of their circuits to change their contents... but it could be changed.
No.
You can install it from a flash drive or through network.
Why if the world would you want to do that? Other than literally removing the ROM from the computer, you could flash it for BIOS updates but you dont physically control that. FYI the ROM is like the Alternator in your car...if damaged your computer becomes an expensive paperweight...
On start up the computer fetches information from BIOS. BIOS is a ROM. After that the computer loads OS from Hard disk into the RAM.
Flash Rom
Flash ROM