Explain what an IM is, and what the technology shown in the accompanying figure is.
What will be an ideal response?
Student responses will vary, but should be drawn from the following information from the text.
Instant messaging (IM) is a real-time Internet communications service that notifies you when one or more of your established contacts are online and then allows you to exchange messages or files or join a private chat room with them. Real time means that you and the people with whom you are conversing are online at the same time. Some IM services support voice and video conversations, allow you to send photos or other documents to a recipient, listen to streaming music, and play games with another online contact. Many can alert you to information such as calendar appointments, stock quotes, weather, or sports scores.
For IM to work, both parties must be online at the same time. Also, the receiver of a message must be willing to accept messages. To use IM, you may have to install instant messenger software on the computer or mobile device, such as a smartphone, you plan to use.
Many online social networks include an IM feature. To ensure successful communications, all individuals on the friend list need to use the same or a compatible instant messenger.
A chat is a real-time typed conversation that takes place on a computer or mobile device with many other online users. A chat room is a website or application that permits users to chat with others who are online at the same time. A server echoes the user's message to everyone in the chat room. Anyone in the chat room can participate in the conversation, which usually is specific to a particular topic. Businesses sometimes use chat rooms to communicate with customers.
As you type on your keyboard, others connected to the same chat room server also see what you have typed. Some chat rooms support voice chats and video chats, in which people hear or see each other as they chat. Most browsers today include the capability to connect to a chat server.
You might also like to view...
A _____________________ is a tree whose elements are organized to facilitate finding a particular element when needed.
a) full tree b) complete tree c) binary tree d) search tree e) none of the above
A(n) ________ graphic is often included to diagram relationships or processes
Fill in the blank(s) with correct word
To evaluate a formula, you select the cell and then click the _______ button from the Formula Auditing group on the Formulas tab.
A. Define Formula B. Select Formula C. Check Function D. Evaluate Formula
With no multithreading, _________ is the simple pipeline found in traditional RISC and CISC machines.
A. superscalar B. single-threaded scalar C. blocked multithreaded scalar D. interleaved multithreaded scalar