https://www.pcmag.com/picks/the-best-laptops , https://www.wired.com/gallery/best-laptops
https://www.laptopmag.com/reviews/best-laptops-1
https://clickamericana.com/topics/science-technology/designed-to-be-your-first-laptop-computer-1987
https://www.collectorsweekly.com/electronics/computers
https://en.wikipedia.org/wiki/History_of_laptops#Improved_technology
SONY
https://www.notebookcheck.net/Sony-Vaio-VGN-AW-Series.12040.0.html 2008-10-25
https://www.expertreviews.co.uk/laptops/48233/sony-vaio-vgn-aw21mh-review 2009 May 11
https://www.sony.co.uk/electronics/support/laptop-pc-vgn-series/vgn-aw21m/specifications 18.4 inch screen
ACER
https://www.notebookcheck.net/Review-Acer-Aspire-8942G-Notebook.25731.0.html 2010-2-18
18.4 inch screen https://www.alphr.com/acer/30793/acer-aspire-8942g-review
DELL
https://www.cnet.com/reviews/dell-inspiron-1720-preview 2007-6-25
http://www.notebookreview.com/notebookreview/dell-inspiron-1720-review 17 inch screen
https://www.notebookcheck.net/Review-Dell-Inspiron-1720-Notebook.4342.0.html
https://www.laptopmag.com/reviews/laptops/dell-inspiron-1720 2007-10-10
https://www1.la.dell.com/an/en/corp/Laptops/inspnnb_1720/pd.aspx?refid=inspnnb_1720&s=corp
https://en.wikipedia.org/wiki/Dell_Inspiron_1525 2008-1-11
http://www.notebookreview.com/notebookreview/dell-inspiron-1525-review 15.4 inch screen
