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Answers
1. An e-mail is a message that is sent electronically through a network.
2. The internet offers a variety of communication services, one of them being, video-calling. Video-calling is the meeting of two or more participants that share audio and video. It involves the use of a microphone, a webcam and speakers.
3. An absolute value is the non-negative value of a real number, regardless of its sign.
4. A string is a sequence of characters enclosed within quotes, that is usually treated as a text value.
5. E-greetings are cards carrying wishes that can be transferred via the net. It can be transferred via an e-mail or a message
6. The two types of functions in QBASIC include:
- built-in functions
- user-defined functions
Built-in functions are those functions that are provided by the interpreter and can be used once it has been called.
A user-defined function is a function created by the programmer.