Write the feature of ms-dos ?

Quick pl which one of the following is considered a peripheral? a software b mouse c usb connector d motherboard

Plz ( which is an example of a good url?

Acontact list is a place where you can store a specific contact with other associated information such as a phone number, email address, birthday, etc. write a program that first takes in word pairs that consist of a name and a phone number (both strings). that list is followed by a name, and your program should output that name's phone number.