When did amazon start developing electronics

I think this timeline would help: 
1995Amazon launches in July, having been established a year earlier, as an online book retailer.1997Amazon floats on the Nasdaq in New York, with a market capitalisation of $438m. Acquires bookpages.co.uk and launches Amazon UK.1998Expands into CDs and DVDs.1999Expands into toys and electronics.2000Marketplace, Amazon's third-party seller business, launches. New logo, with arrow running from the A to the Z in Amazon launches, reflecting desire to sell everything from A-Z.2001Photo: AlamySigns partnership deal to takeover running of Borders.com; Borders collapses ten year later. Amazon makes first quarterly profit at end of the year.2002Launches Amazon Web Services, its cloud computing platform.2003Expands into selling jewellery for first time.2004Sells shoes for the first time.2005Amazon Prime, its premium membership package launches in the US, followed in the UK two years later.2006Photo: Jonathan Alcorn / ReutersAmazon Fresh, its online fresh food delivery business, launches in Seattle.2007Kindle book e-reader launches.2008Amazon Games launches.2010Amazon Studios launches to create original television content.2011Kindle Fire, the company's tablet, is unveiled.2012Acquires Kiva, a robotics company, for $775m.2013Photo: News ScanAmazon Art launches. Drone delivery plans unveiled for first time under 'Prime Air' name.2014Echo, Amazon's voice-activated information and home gadget device, launches in the US.2015Celebrates 20th birthday with market capitalisation standing in excess of $245bn.

Hope this helps!