These two computers are the 4th and 5th refurbished machines I have purchased for friends and relatives during the past two years with great success.  The small format size makes positioning easier than for larger units. The units worked when turned on, automatically connected to my wireless network, and registered/activated Windows 7 without problems.  I did not realize the machines came with a built-in WiFi card with antenna.  I updated the Open Office program to Libre Office free of charge. The small old hard drives are no problem with the modern use of cloud storage.  These machines are great for students doing their homework and general WEB browsing, especially for such a low price.  One of these two units had a keyboard with errors but i just replaced it with a keyboard from a none working computer.Just as an aside, one of my three earlier machines had a hard drive failure after about 18 months.  With a new $40 hard drive, the Windows 7 refurbishment installation disk had the machine working again in just two hours with no registration problems.  Many hours later, all the Windows and Norton updates were installed along with all the other software. At my job, we still have many of these Dell 755s still working after being upgraded to Windows 7.