1.10 Standards and Protocols resources

Standards and protocols are the technical definitions and rules that enable technology to work. Images taken on a digital camera can be edited in a graphics editor and displayed in a web browser because they are saved in a standard format that is open and widely understood - JPEG or PNG. Web pages can be created, served, and viewed because they are saved in a standard format - HTML - and transferred using a known protocol - http. Without known standards and protocols communication and data transfer would be extremely difficult.

Ports and connectors

Ports & Connectors

A Visual Guide to Computer Connectors is an excellent (visual) resource for the most common types of ports and connectors on modern computers. The guide covers cables and connectors used for video, audio, data (internal and external hard disks), network connections, and general purpose ports such as USB.
Updated: 2014-10-02
Graphics file formats

Graphics file formats

The Web Style Guide has a good illustrated overview of the three graphics formats used for web pages: JPEG, PNG, and GIF.

Microsoft's support site covers a much wider range of file formats, including a range for vector and bitmap graphics.

When to Use the JPG, GIF, PNG, and SVG Formats for Your Web Images is another good guide, this time aimed specifically at web developers. It may help ITGS students in their internal assessment projects.


Updated: 2018-03-28