What is a proper noun for the word computer?

There isn't a single proper noun that represents "computer" in the same way that "Apple" represents a specific brand of computer.

Here's why:

* "Computer" is a common noun: It refers to a general category of electronic devices.

* Proper nouns are specific names: Like "IBM," "Dell," or "Mac." These are specific brands or models of computers.

However, you could use a proper noun for a specific computer you own or refer to. For example:

* "My laptop" (if you have a specific laptop you are referring to)

* "The mainframe" (referring to a specific mainframe computer)

Let me know if you'd like to explore more about proper nouns or have any other questions!