How to Do a Dual Screen on an iMac (9 Steps)

Determine the type of video connection used with the external monitor you wish to connect to the iMac. The iMac features a Mini DisplayPort on the back of the monitor that supports DVI, VGA and dual-link DVI connections through the use of different adapters. DVI and VGA are two of the most common connections used with computer monitors. The type of connection your external monitor uses should be printed beneath its connection port (see Resources).
Plug in the appropriate Mini DisplayPort adapter for your monitor. The Mini DisplayPort connector is located in the lower-left corner on the back of your iMac to the right of the USB cable and ethernet cable inputs (see Resources).
Turn on the external monitor and the iMac computer.
Connect the external monitor's connection cable to the Mini DisplayPort adapter that you connected to the back of the computer.
Click the 'Finder' icon on the iMac Dock and then click the 'Applications' folder. Click 'System Preferences' to open the 'System Preferences' dialog box. Click 'Displays' beneath the 'Hardware' subheading to bring up the 'Display Settings' dialog box.
Click 'Detect Displays' in the lower-right side of the dialog box to force the iMac to detect the external display. Once the computer detects the external display, select the 'Arrangement' tab. Two boxes will appear in the dialog box, representing your monitors. The box with the white bar across the top of it represents the iMac monitor while the other box represents the external monitor.
Drag the box that represents your external monitor to the appropriate side of the box that represents your iMac monitor. For example, if your external monitor is on the left side of your iMac, drag the box representing the external monitor to the left side of the box representing the iMac monitor.
Place a checkmark next to the 'Mirror Displays' option in the lower-left corner of the 'Arrangement' dialog box if you want to use the external display to mirror the iMac display. Remove the check mark from the 'Mirror Displays' option if you want to use the external display as an extended display. This means that the monitor will act as an extension of your iMac's desktop, letting you drag the mouse cursor from one screen to the other. You can display programs, movies, applications or anything else on the second monitor to free up space on the iMac's main screen.
Close the 'Display Preferences' window to save the changes.
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How to Connect Two Mac Laptops (5 Steps)

Plug the connection cable into both Mac laptop computers. If one of the computers you are using is a Macbook from 2008 or later, you will not be able to use a firewire connection. In this event, use an ethernet cable to connect the two laptops.
Open 'Migration Assistant' on both computers. To do this, open the 'Utilities' folder and locate 'Migration Assistant.'
Select which computer you would like to share data and which computer you would like to receive data. You will have to make your selection on both computers.
Enter the code provided to you on one of the computers. A numerical code will appear on one computer. Type this code into the other laptop computer to complete the connection.
Select the types of data you would like to transfer. There are several categories you can transfer including desktop, documents, applications and utilities.
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How to Optimize Netflix (5 Steps)

Visit Netflix.com and click the 'Your Account' tab in the upper right corner. Click the link that reads 'Manage Netflix ready devices and computers.' Under the 'Support' heading, click your Netflix-viewing device (such as 'Xbox 360' or 'Netflix for iPad') to find out if you are currently missing any required software to properly stream videos. If necessary, download the listed software and install it on your PC.
Connect your computer or other Netflix viewing device to an Ethernet cable for wired Internet. While Netflix can stream videos through Wi-Fi, the wireless delay may slow down your streaming quality in the event that you have a slower Internet service or multiple users accessing the same wireless network. If you cannot connect to a wired Internet signal, move as close to the wireless router as possible.
Watch videos at a time when the Internet signal is uninterrupted by others in your household. If you stream videos while others surf the Internet on the same network, you will all have to share the same bandwidth, often resulting in poor Netflix quality on your part.
Close other web browsers and discontinue all other web-related activity if your streaming quality suffers. You should especially make sure to discontinue activities related to large file downloads and high-resolution web games.
Contact your Internet service provider about increasing your upload/download speeds. This may result in an increase in your monthly bill, but will improve your entire web experience. The faster your Internet connection, the smoother Netflix will run on your PC, and the better your video quality.
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How to Stream Cox Cable on My iPad

Connect your set-top box to the video source. The device should have enough connections on the back to allow you to hook up to three different video sources at once. This means you can hook your Cox cable connection directly into the back of the box's coaxial inputs. This will run the video feed to your TV through the device. You will also need to connect the box to your television inputs.
Hook up the box to an Internet connection. If your Internet router is close by, you can simply connect an Ethernet cord to the back of the box. If you do not have a router nearby, you can get a device that makes your electrical outlets into an Internet connection. Once you plug the box into the wall outlet, it will automatically have an Internet connection also.
Download the appropriate app for your iPad from the App Store. For example, if you use a Slingbox for this process, you will need to download an app called SlingPlayer. You will need to enter your iTunes password into the iPad to allow the download. Wait for a few seconds to allow the download to finish, and then open it.
Watch your television through the app on your iPad. You can completely control your television through the app. It will allow you to change channels and even use your DVR through the iPad controls.
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