<h3><em><u>Importance of Mobile computing in communication</u></em></h3>
*It’s portable and easy-to-use.
*It helps for different communication and information exchange.
*It saves user’s time and effort.
*It provides quick services like online business, e-mail, e-fax, etc.
*It increases the social interaction by sharing location services and GPS system.
Answer:
phishing
Explanation:
all others are different ways of Hacking.
are you interested in cyber security?
Answer:
UPDATE COMPANY
SET COMM=COMM + 500
WHERE SALES> 20000;
Explanation:
The update command is used for alter the record in the database management system in the table .The update command command modify the record on the some condition in the table in the database management system.
Following are syntax for using the update command .
UPDATE table-name
SET column name 1,column name 2 .........
Where condition
- In the given question table -name is "COMPANY" the condition is on the sales column and it update the table only when sales is more than 20000 and set the column COMM by 500.
Answer:
Laser printer
Explanation:
This is a guess based on experience, but laser printers have rollers, drums, and other various parts that need periodic replacement.
See page 87 of https://www.laserpros.com/img/manuals/hp-manuals/hp-lj-4100-manual.pdf for an example.
