Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: so dvd drive has to be plugged into usb port? how many ports are there please ?
Document: It's easy to disable the touchpad and it stays off, even when I restart the system.There is no CD drive in this laptop. I thought that might be an issue, but it turned out not to be one at all. I got an external drive and plugged it in for those very few times when I need it.This laptop has incredible sound quality. Which was NOT a requirement for me, but another nice added feature.
If you are looking for a laptop that is fast, plenty of Hard Drive, USB ports, HDMI connector to hook to your TV, then this one may be one for you. I wanted speed, large hard drive, but the one thing I did forget to check was the CD Reader/Writer. It doesn't come with a CD Reader/Writer, but I ordered a external CD writer from Amazon for $28. Since I don't use CD that much, not a big deal to me.
I love that anything that i install on the laptop I can access on the main app screen. The touch screen I love. The lack of a CD drive was no problem. I just got an external CD drive and was able to install the programs in needed to easily.
Good processor speed, lots of RAM and huge hard drive. This is a widescreen layout, so you get a dedicated numeric pad, but you will be typing &#34;left of center&#34; if you hold it on your lap. The laptop is very lightweight, partly because it has no internal optical drive. The backlit keyboard is a nice feature for dimly lit areas. Screen resolution is very sharp.
They told me I could box up the system and send it to Texas for repair (I'm in California), on my dime, after I uninstall everything I put on the computer (cd drive, photos, videos, Rosetta stone, etc) and set it back to factory default. I could then expect to have to wait two weeks to get my computer back. What a pain.
The processor is clocked to 4.2GHz, and yet somehow, I prefer this laptop's AMD A10 CPU over the FX-4100. Both run the same Windows 8 OS, and yet, copying 12GB of data on the laptop took around 5 minutes, while doing the same on the desktop took more than twice that amount. There are many more situations where the A10 stood out against an overclocked FX chip.
I have mixed feelings about the laptop. Being in Desktop Support I see several different reviews on here and they seem skewed one way or the other for petty crap. So here it is:The Good:Under the hood specs are great. Processor, Ram, larger than most Hard Drive is all well and good. Battery life isn't great but serviceable. If you need a good laptop this isnt a bad machine with hardware that is up to par, with a few exceptions.
The picture quality was incredible as well. Another very nice feature.Yes, I could have spent many more hundreds of dollars to get the speed and power that I wanted, but I didn't have to. The Acer Aspire gave it to me. With the addition of the mouse, I have my perfect working laptop. And I do my work sitting comfortably in a chair, couch and even propped up in bed. I am impressed.
I can't say enough about this laptop. Is it the BEST out there, the GREATEST, FASTEST, ETC? Maybe not but it is super fast with the AMD A10 chip, it's a QuadCore, have an enormous hard drive and a great TOUCH SCREEN,  More than this 70 yr old granny will ever need. I am a  X Microsoft Solution Developer so I know technology and I'm telling you you won't be sorry you bought this one. It had MORE BANG FOR THE BUCK, believe me I did my research.
the Microsoft forums to check various things in Windows 8 didn't fix it. Nothing fixed it! Upon looking through numerous pages. It seems that this is sadly a common trend  with a lot of laptops.On top of the frustration caused by having to troubleshoot a brand new laptop, it came with 0  reformatting options in the box to start from scratch and was loaded with enough bloat ware to make the computer very slow. CPU% usage was hovering around 22% consistently.
Answer: Just 3, 1 at each side and 1 behind