On early computers, every byte of data read or written was handled by the cpu (i. e., there was no dma). what implications does this have for multiprogramming?

the difference is right there dont you see it

assuming you are in the home page.

1) go to the upper right hand corner

2) click on your "profile picture"

3) go down to "edit profile"

4) it should be titled as "edit your profile", click on "profile picture"

5) choose a file

6) press "change"

you're profile picture is updated

~