Explanation:
The use of computer in business field is increasing day by day. Computers have been heart of modern business. In business, computer help in several kinds...of work such as to keep the records of goods of employees, measure the quantity of goods, send e-maila, communicate with the customers, give online services to customers, control the branch offices from the main offices, and so on....
Answer:
You can use the speedtest.net website. AT&T also has their own tool here: https://www.att.com/support/speedtest/
the numbers are the size of the letters you type. the ab with the line through it is for marking stuff off of like a list or something. and the one all the way on the right I can't see good enough to tell what it is.