Answer: Hi im Sergeant von im here to help you in any way ma'm;)
I would think it would be the last one ( A SCANNER ) i hope this maybe the right answer if not im sorry at least i gave it a shot
Explanation:
The last one " a scanner " is the one i would choose ma'm it seems logic the the Question and seems too fit in with the rest ;)
Have a good day ma'm
Answer:
Charles Babbage (1791-1871), computer pioneer, designed two classes of engine, Difference Engines, and Analytical Engines. Difference engines are so called because of the mathematical principle on which they are based, namely, the method of finite differences.
Explanation:
Answer: Views, unauthorized access, encryption are some of the security mechanisms.
Explanation:
The database of any application or software contains all the important data, therefore it is utmost necessary to protect the data from falling into dangerous hands. Most databases use authentication measures in form of passwords or bio metrics to avail access. Besides these users can use views to see the data but cannot change anything into the database. Some databases also use encryption systems to encrypt the passwords for better safety. There are some databases which grants user with two types of privileges such as system and object privileges, whereby with system privileges one can change the system environment variables.
Answer:
2.82
Explanation:
The computation of the average number of cycles per instruction is shown below:
= Arithmetic/logical operations × frequency cycles + Register load operations × frequency cycles + Register store operations × frequency cycles + Unconditional branch instructions × frequency cycles + Conditional branch instructions × frequency cycles
= 45% × 1 + 18% × 5 + 10% × 2 + 7% × 1 + 20% × 6
= 0.45 + 0.9 + 0.2+ 0.07 + 1.2
= 2.82
