jQuery was developed by john resig The version of jQuery is as follows: -
Version No. Release Date
1.2 10, September, 2007
1.3 14, January, 2009
1.4 14, January, 2010
1.5 31, January, 2011
2 jQuery saves time and memory space
3 jQuery work fast
4 jQuery is supported by almost all browsers
1 code editor: - notepad, notepad ++, sublime, bracket, adobe dreamweaver etc .. You can use one of these code editor.
2 Web Browser: - google chrome, opera etc .. can use any one browser.
3 library file / CDN link: - To learn jQuery you can use jQuery library file or jQuery CDN link.