You were replying to email when suddenly your computer started to display random messages, and stopped responding to keyboard an
d mouse input. You suspect that you have accidentally downloaded a virus. Which of the following actions most likely caused this? You opened an email attachment.
You logged in to your company's portal.
You printed a file that was stored on your hard drive.
You sent an email message with an attachment to a co-worker.
Definition- "The interface of a particular piece of computer software is its presentation on the screen and how easy it is to operate. <em>...the development of better user interfaces.</em>"