notepad
US /ˈnoʊt.pæd/
UK /ˈnoʊt.pæd/

1.
a pad of paper for making notes
:
•
She always carries a small notepad in her purse.
•
He jotted down the address on a piece of paper from his notepad.
2.
a basic text editor program on a computer
:
•
I opened the README file with Notepad.
•
You can use Notepad to view plain text files.