Answer:
The answer is... Vaccum Tubes...
This is one which was used in computers before the Phenomenal invention of Transisitors.
Both in my personal and professional life, I use the Excel software in order to create tables and lists. It's much easier to do that in Excel rather than in Word, for example, because Excel was actually created for that purpose, whereas Word was created for writing, above all. I use Excel for work to create tables of various things, such as names, emails, payments, etc. whereas I use it in my personal life to create lists of things such as movies, books, etc.
Answer:
Explanation:
A constant is a name that references a value that cannot be changed while the program runs
Example in Javascript:
const x = 5;
cannot be reassign x
wronged: x = 10; (will throw an error try to assign value to constant variable)