I recommend you go to Stacks Overflow . There are many experienced coders there that would gladly answer your question.
They provide an intersection between technology, social interaction, and the sharing of information
From how I interpret it, it means that you can use X amount of megabytes or gigabytes within the billing cycle. For example, if you went with $100/2 months for 10GB of data, you would pay $100 every 2 months, and within those 2 months you would be able to use 10 gigabytes of data. It looks like the average smartphone user uses about 3GB of data per month, but you'll have to gauge it based on what you normally use.
Answer:
The answer to this question can be given as:
The first antivirus was written in 1987 by the German security expert Bernd and the name of the antivirus is Vienna Virus.
Explanation:
Antivirus: It is a software or anti-malware software that is used for providing security. It is a tool that runs on various digital devices and searches for files that should not be on your computer. If the file is found then It defends the computer from incoming threats and seeks-out, stops and alerts of viable threats from the system so the computer works properly. So, the first antivirus was developed in 1987 by German security expert Bernd.