B. Which promotes a chemical reaction
Since after update of operating system patches the end user see dots in black screen, either end user has to restore operating system old back up if he or she has or boot the operating system in safe mode.
<u>Explanation:</u>
On safe mode end user can repair the operating system; in repair mode still operating system cannot repair the operating system on same safe mode uninstall patches or recent updates of operating system during vacation.
Still it is workstation or laptop or desktop is not restoring it normally better to format and reinstall the operating system.
Answer:
User can make the network name
The problem with ASCII or extended ASCII is that the ASCII system can only represent up to 128 (or 256 for EASCII) different characters. The limitation on the number of character sets means representing character sets for several different language structures is not possible.
