1).What is the difference between DIRECTORY AND FOLDER?
ANS:A Directory contain folders as well as files...i.e they cannot begrouped easyly...where as Folder contains a files...which allow quick access...A directory holds the folders....
2).How the system time is updated even the computer is switched off?
ANS:The system time is automatically updated by a rechargeable battery called CMOS (Complementry Metal-oxide Semiconductor) battery....
3).What is a Apache?
Ans:A Apache is a WEB SERVER...
4).What is the System time and Real Time?
ANS:System time can be changed as per our requirements...But the real time is followed uniformly in a country or a certain region...