There are common programs that are being used every day. Programs have been used for many years already and some of them became common to be used every day as they gained a good reputation for being useful. They have proven to be the best or better tools to be used than others. They are already familiar to you if you use them at work. One of the programs that are commonly used and it is literally used every day is Microsoft Windows.
It is an operating system but also it could be counted as a program that greets you whenever you open your computer. The second one is the Microsoft Internet Explorer that those who have an internet connection are using. Though users also prefer to use Google Chrome and Firefox.
Surely you are using the Microsoft Office and Outlook where you can find the Word, Excel, Powerpoint, including Publisher. They are needed especially in offices as they are used continually. there could be other similar programs but nothing yet beats them. We are also including an antivirus which is the McAfee Antivirus.
Many may oppose because they use Avast or other antivirus programs. One last program is the Adobe PDF. You may have received a file and you will soon find out that it is formatted in AdobePDF. You can view it in most computers and their distribution is easy using the internet. There is even a security embedded on it. There are other programs like PDF but the Adobe has its own followers.