add first update, "why libre"

diff --git a/updates/001_2018nov28_why_a_libre_soc.mdwn b/updates/001_2018nov28_why_a_libre_soc.mdwn
index 620998d40f0deb8468627c96519575d948d053d9..fcc8dfc854931e4006436a2f84bd684747c8b395 100644 (file)
--- a/updates/001_2018nov28_why_a_libre_soc.mdwn
+++ b/updates/001_2018nov28_why_a_libre_soc.mdwn
@@ -62,7 +62,10 @@ you can mess about.
 All of this is because these are *integrated* processors.  There is no
 separate VPU: it's on-board.  There is no separate GPU: it's on-board.
 There is no separate "Northbridge" or "Southbridge" IC: it's on-board,
-all on the same die as the actual processor.  One single mistake and
+all on the same die as the actual processor, as a way to save both on
+space (think mobile phones) and power (driving external pins uses a huge
+amount of power, which an "embedded" all-in-one design does not have).
+The down-side of this all-in-one approach: one single mistake and
 the entire chip, with all the investment up to that point, is junk.
 
 And the problem is compounded by the fact that Foundries themselves make money