This is called a key attribute!
There are different types of key attributes!
Primary key is the key that is actually chosen, for example a social security number.
There is also a unique key, say our finger prints! they also uniquely identify humans, but usually we prefer to use social security number when we list people (a unique key could be a primary key if we chose so)
We could also identify people by their social security number and a name, but this is unnecessary, as social security number already gives a full identification. Such a reduntant key is called super key.
Answer:
The answer is below
Explanation:
The various stages in the information processing cycle in the correct order is as follows:
1. Input stage: this is when the data is sent into the computer through the hardware
2. Processing stage: this when the is being refined in the central processing unit of the computer
3. Storage stage: this is when the data is being saved or stored in the computer memory such as Hard drive or external storage such as Flash drive
4. Output stage: this is when the refined or processed data is produced to the user either through the monitor screen or printing
The answer is c that what a lot of people use☻
Answer:
it means someone thought your response to something was helpful. :))
Explanation:
A good website to learn coding is called Lynda.com. It costs money but its well worth it!
