When was the camera invented?

Not Give Ans. ~_~​

Jason works as an accountant in a department store. he needs to keep a daily record of all the invoices issued by the store. which file naming convention would him the most? a)give the file a unique name b)name the file in yymmdd format c)use descriptive name while naming the files d)use capital letters while naming the file

How to do this programming flowchart?

What can you prevent issues related to downloading content form the internet