The middleman causing higher prices for cashless transactions does not apply. An everyday example:

We are both in the gas station and we both buy $10 at the pump. You pay cash I use my credit card,
but it only costs me $9.70 because I get a 3% rebate.

The merchant is paying 5% to the credit card company for processing the sale, but is getting benefits that compensate; for example faster transaction processing, no bounced check fees, no cash embezzlement, no worries about hold ups, an increased customer count because he accepts credit cards, higher sales per customer transaction, and more satisfied customers.

Not all benefits apply to all merchants, but enough do to make the 5% fee palatble.

Meanwhile I will be saving 3% on my purchases.

Any os can be used on the desktop. The comments here are addressing the user environment which is built on top of the os.
The primary function of the os is to handle physical io operations by translating calls with parameters into detailed instructions which it exexutes. Since these capabilities are already built into the mobile phone os there is no reason why they can't be used on the desktop -- providing that they are modified to permit user programming.

Comparing a drone to nuclear weapons is like comparing a 747 to its cargo (goods or passengers).

A drone is a pilotless aircraft. It is an alternative to manned aircraft. It can carry cameras and/or missiles.

In an ideal world there would be no need for either drones or manned military aircraft. Unfortunately we do not live in an ideal world.

From both humanitarian and economic points of view drones are preferable to manned aircraft.

Drone weaponry is more accurate than that of manned aircraft which results in less :"collateral" damage (fewer civilians get maimed and killed) and totally avoids the loss of skilled air crews.

As far as economics go drones cost considerably less to build and fly than do manned aircraft and drone operators cost a lot less to train than air crews.

Yes, drones will proliferate. They will eventually replace most manned aircraft in every nations air force.

Even when I was younger I would have been reluctant to carry my first PC with me. After all the separate case and keyboard of my Compaq 286 were awkward enough and then when I added the bulk of CRT monitor -- forget it.

Even my first "portable" a Compaq the size of a sewing machine with -- gasp -- not one, but two, 5 1/4 inch floppy drives required a wheeled cart if I wanted to move it more than 100 feet without suffering a heart attack.

Yes, my ThinkPads can be carried around and offer more performance than I need, but I find that for much of my usage my tablet is prefereable. Sure, the screen is smaller and (at age 77) my eyesight isn't what it used to be and processing power is laughable when compared to my ThinkPads, but for checking the weather, browsing the web and handling my email the table is good enough. An added benefit is that I can even use it with the dog sitting on my lap.

Of course when I want to do serious work with processor intense applications I sit down at the desk and use a ThinkPad.

The moral of the story is that it isn't an either/or situation and tablets and PCs can and should coexist.

Because she didn't have a degree in computer science her resume would never be approved by HR. The hiring manager wouldn't even know she applied.

Sorry, but you missed out on the real profit opportunity.

It should be:

1. Take bribes from other students to be the first one to cheat.
2. Blatantly cheat and get caught.
3. Become the proctor, and take bribes from everyone else who you catch cheating.
4. Develop a good business prospectus and franchise your cheating system.
5. Find a venture capitalist with no morals and go public.
6. Sell your stock and retire a multimillionaire before your classmates graduate!

Jerry