With each download from the internet, the user waits a certain amount of time between the application sending the initial request, the arrival of the first part of the response, and the completion of the download. This is latency. If the downloaded data is a web page, then there are many objects of different sizes involved—typically HTML code, JavaScript files, several images, and style sheets—and the complete download experience consists out of many individual HTTP transactions (request and response pairs of downloading each object).