Woah Technology!

1234
Across
  1. 3. a personalized graphic file or rendering that represents a computer user or user’s alter ego, often used on Web exchange boards and in online gaming; can be a real-life digital photo, but is more often a graphical representation.
  2. 4. a standard method of compressing photographic images for storing and transmitting on the World Wide Web; JPEG is also the file format which employs this compression (with the following file extensions: .JPEG, .JFIF, .JPE, .JPG); the term is an acronym for Joint Photographic Experts Group, which created the standard.
Down
  1. 1. in computer programming, a word or identifier that has a particular meaning to the programming language; also a term that captures the essence of the topic of a document used by a search engine to retrieve online documents related to that term or terms.
  2. 2. words or phrases prefixed with the symbol # (the pound sign); used to mark keywords or topics in a Tweet or social networking service.