All Macs support at least one additional monitor, though some Macs only have one available port to share between charging, file transfers, and external displays. If you have a MacBook laptop with only one port, make sure that your computer is fully charged and disconnected from any peripherals (e.g., USB flash drives) before attempting to connect another monitor. Depending on your Mac, you'll find one (or more) of the following ports on the side of your Mac (MacBook and MacBook Pro) or on the back of your Mac (iMac):   USB-C (Thunderbolt 3) — Oval-shaped port. Modern MacBooks, MacBook Pros, and iMacs have anywhere from one to four of these.  Thunderbolt 2 — Square-shaped port. Found on older Macs.  HDMI — Six-sided, flat port. Found on older Macs. Modern monitors tend to use either DisplayPort or HDMI ports for their inputs, but some monitors will also have VGA ports. If you have an exceptionally old monitor, you may find a DVI port on the back of your second monitor. DVI ports resemble white boxes with clusters of holes, as well as a section with a few separate holes. If you don't have a cable which can connect your computer to your monitor (e.g., an HDMI cable), you'll need to buy one.  If your computer and your monitor both have a common port (e.g., HDMI), it's easier (and cheaper) to buy a cable that fits both ports even if a higher-definition option is available. If the monitor's input doesn't match your computer's output (e.g., if the monitor uses a VGA input while your computer uses an HDMI output), you will need to buy an adapter. Some video output combinations, such as HDMI to DisplayPort, come as cables that you can purchase instead of buying an adapter. The cable should plug into your computer's video output port. The free end of the cable should fit into your selected port on the back of the monitor. If you're using an adapter, you'll plug one end of the cable into the adapter and then plug the monitor's cable into both the monitor and the adapter. If your monitor isn't plugged into a power source, attach it via the included power cable; you can then press the Power button on the monitor to turn it on. Depending on your computer, you may see your desktop reflected on the second monitor when it turns on. Click the Apple logo in the top-left corner of the screen. A drop-down menu will appear. You'll find this option in the drop-down menu. Doing so opens the System Preferences window. It's a screen-shaped icon in the System Preferences window. A pop-up window will open. This is at the top of the Displays pop-up window. If you want to use the second monitor as an extension of your desktop, uncheck the "Mirror displays" box at the bottom of the window. If you just want your second monitor to mirror whatever is on your Mac's primary monitor, skip this step.
जान लीजिये कि आप कौन सा मैक्स (Macs) इस्तेमाल कर सकते हैं: अपने मैक्स के वीडियो आउटपुट पोर्ट का पता लगाइए: अपने मॉनिटर का वीडियो इनपुट पोर्ट खोज लीजिये: अगर ज़रूरी हो तो अपने मॉनिटर को कंप्यूटर से कनेक्ट करने के लिए एक केबल ख़रीद लीजिये: केबल के एक सिरे को अपने कंप्यूटर में प्लग कर लीजिये: केबल के दूसरे सिरे को अपने मॉनिटर में प्लग करिए: मॉनिटर को पावर ऑन करिए: एप्पल मेन्यू को ओपेन करिए: क्लिक करिए System Preferences…: क्लिक करिए Displays: Arrangement अपने डेस्कटॉप को दूसरे डिस्प्ले तक एक्सटेंड करिए: