Hp laser jet p2015
"Computer displays and printers are classified as?"
There are Laser printers and Inkjet printers. There is also bubble jet, which is similar to inkjet.
Yes, many do, especially networked printers.
Ink jet printers are a very common alternative to laser printers. There are printers that use an LED instead of a laser. They work the same as a laser printer but are cheaper.
If your asking how many models/brands then you are not going to get an answer but if you're asking what categories then there are are the basic plastic printers, then resin, food printers, etc.
The earliest printers were essentially automatic typewriters and had little flexibility.
Peripherals
Yes
it tells you.
No
Computer printers do indeed have replaceable memory. These computers are relatively new in age and have many wonderful memory features.
Parallel Port-Most common uses are to connect older printers to the computer