Answer:
D. Operating system
Explanation:
A keyboard is a secondary item like a mouse and is not apart of computer hardware and app is also not a computer hardware because its coding not hardware. Web Browser is a Internet thing not hardware.
Answer:
Data Mining.
Explanation:
Data Mining is the process in which a computer software uses database technology,artificial intelligence and statistical analysis so that it can find the hidden patterns,connections and trends in the data.To help business owners to make better marketing decisions and predictions about the customer's behavior.
Answer:
To communicate effectively, you need to avoid distractions and stay focused. Inconsistent body language. Nonverbal communication should reinforce what is being said, not contradict it. If you say one thing, but your body language says something else, your listener will likely feel that you're being dishonest.
Answer: Limits the row data that are returned.
Explanation: In structured query language (SQL), The where clause is used as a filter. The filter is applied to a column and as such the filter value or criteria determines the values that are spared in the column on which the WHERE clause is applied. All rows in which the column value does not meet the WHERE clause criteria are exempted from the output. This will hence limit the number of rows which our command displays.
For instance,
FROM * SELECT table_name WHERE username = 'fichoh' ;
The command above filters the username column for username with fichoh, then displays only rows of Data with fichoh as the username. All data columns are displayed but rows of data which do not match fichoh are exempted.
