I bought the newest I-Mac last November.  It is the fourth I-Mac I have owned, two tube type and two flat screens. I was very happy with the I-Mac's until this one.  This one is okay, but I think the Apple people have forgotten it is a desk top machine.  It is not a laptop.  It does not have to be the thinest lightest machine as it is going to sit on a desk.  My previous I-Mac connected to two printers, a 50 inch TV, a turntable input, stereo/ headphone output, a CD read write drive, a couple of memory sticks, and a cable to connect to a camera for picture downloads.  With a three into one USB adapter, I was able to connect all of these to my I-Mac.  There was also a ethernet connector.  It also had a builtin DVD/CD drive and a card reader.  I used a keyboard with a number pad which was USB connected.  I disliked the wireless mouse. My new I-Mac has just two connectors.  It does not have an ethernet connection.  Instead of jacks for audio in and out, it has one jack which does both, but input seems to be in mono.  Anyone working audio knows you must have input and output so you can monitor on headphones.  I had to buy, not one, or two, but three adapters.  The first connects most everything to one of the I-Mac connectors.  It connects the two printers, the TV,  U Control audio, the three in one USB, my keyboard, and my wired mouse.  It also connects the ethernet cable although it calls that connection AX88179A.  I do not know if that is the same as having an ethernet connection.  According to everything I find about the subject, ethernet is faster and better than wireless, so why doesn't the new I-Mac not have an ethernet connector?  Those of us replacing an older desktop computer have the ethernet cable sitting there.  I was sold a second adaptor with four USB to the second I-Mac connector.  That is for the camera cable memory sticks and whatever.  To make up for the lack of a DVD/CD drive on the I-Mac I bought an apple super drive.  It only works, using the last adapter directly connected to the I-Mac.  It also  has a short cable so is not convenient to place.  Again, the thought that this is designed for a laptop. It is very disappointing as I can not connect it and leave it connected in place on my desk.  The one thing I have not hooked up is the CD read/write drive.  I did not want to spend the north of $50 for adapters for it.  I have no comment about the keyboard.  I never used it, but would not like wireless.  I am using the keyboard from my old I-Mac as I want one with a number pad.  It connects USB.  I disliked the old mouse as the batteries would go dead and the computer would be frozen until the batteries were replaced.  A pain in the ass.  I thought this new computer mouse had the problem solved.  It has built in rechargeable batteries, and you connect a cable to recharge.  Well the cable is on the bottom of the mouse.  It can not be used when charging.  After about the fourth time I forgot to charge the mouse, and it died and I could not do anything with the computer until the mouse was charged, I threw the mouse in a drawer. and bought  a cheep logitech mouse which is wired.  I would prefer the apple mouse if it was wired.  Once again, a desk top computer does not need wireless keyboard or mouse!! There is an old saying, "if it ain't broke, don't fix it".  I hate buying  new computers as they have done a lot of unneeded fixing.  Than, you have to relearn things just to do what you knew how to do.  Take pages, which I am using.  I used to go to edit go down to spelling, click that and it would take me through misspelled words with suggested corrections.  Than, I could click on the suggestion and make the correction.  Now I have to click on spelling and grammar, and I get nothing about spelling.  After a lot of hit and miss trying to find spelling, I found I have to control click the word to get suggestions.  Your fix made it worse.  I do my taxes by downloading the directions and forms, than filling out the forms using Adobe.  My brand new OS will not let me download Adobe.  However, Preview will now let me fill out forms.  But, preview does not work well.  I had to use pen and ink to fill out some of the blanks.  I hope by next year I will be able to use Adobe. I bought my new I-Mac at Macman in Eau Claire, Wi..  I would recommend buying an I-Mac.  But, as a desktop computer it used to be better.  I am posting this here in the hope that Apple will see it and realize it is a desktop machine.  Use wires to connect.  Put a  DVD drive in the machine.  Put some connections in the machine.  Laptops are great, but desktops are different.  They do not have be like a laptop.