Answer:
A display device is the most common form of output device it presents output visually on a computer screen.the output appears temporarily on the screen and can easily altered or erased,it is sometimes referred to as softcopy
Answer:
It is just true in most cases
Explanation:
This statement is just true in most cases because in some cases having a physical access to the computer or hard drive this does not guarantee access to the information contained in the hard drive or computer because the data/information in the hard drive or computer might as well be encrypted and would require a password in order to de-crypt the information.
Having a physical access is one step closer in some cases but not the only step required .
Answer:
Redundancy is the mechanism that occurs in database's data as the same data is stores in the multiple location.It creates repeated data by accident or for backup purpose.
The issues that arise due to the redundancy of the data is the storage space in database gets consumed and thus wastes the space in storing information in multiple locations.When any update occurs in the stored data's field value , it also has to be changed in the multiples occurrences.
I think this is HTML so I would recommend use the doc on W3schools.com
