Ewald Böhm wrote:
On Mon, 07 Sep 2015 00:42:47 -0700, Jeff Liebermann wrote:

b/g = 2.4 GHz only
b/g/n = 2.4 GHz
only a = 5 GHz only
a/b/g/n = 2.4 and 5 GHz
The key is the "a" as in 802.11a, which is 5 GHz only.

So, if it doesn't have "a" (all by itself and not with "ac"),
then it's not 5GHz? Is that correct?

Broken link. Try:
http://reviews.costco.com/2070/10008...d-hp-envy-15z-
laptop-amd-quad-core-a10-backlit-keyboard-reviews/reviews.htm
which says:
802.11b/g/n WLAN
which is 2.4 GHz only.

This link worked for me just now:
http://www.costco.com/CTOConfigureCm...1&prodtype= 2

If you must have Microsoft Office, look
at Office 365 or the various Office Mutations available.

Sad story. Long story. Experience. Nothing else is Microsoft Office.
You and I can handle any office lookalike program, but teachers can't.
Office 365 is stupid, for anyone buying only 1 copy of Home & Student,
and who is still using Office 2007, which means they'd pay for Office
ten times over with the subscription than with the one price.

Back to the "a", which is 5GHz and "g" which is 2.4GHz.
What if it's 802.11 b/g/n/ac ?

Who cares about -b ancient slowest mode. G, N, AC. If it is AC card or
router AC is downward compatible with slower modes.Student version lacks
some features and miscellaneous things. Why do you think it is cheaper?
WiFi is 2 way street one laptop has AC card does not mean it'll be
faster, corresponding device at the other end should be AC
capable too. If AC card talks to N card speed will be that of N.