In one sentence, describe what the following article is about: Click the Apple logo in the top-left corner of the screen. A drop-down menu will appear. It's in the drop-down menu. Doing so opens the About This Mac window. This tab is in the upper-left side of the About This Mac window. The Overview tab will usually open by default when you open About This Mac. The number to the right of the "Memory" heading indicates how much RAM your Mac has installed, as well as what type of RAM you're using. . If you want to see how your Mac is using its RAM (or how much it's using at a given point in time), you can use the Activity Monitor program to do so. Doing this while running a program will give you an idea of how much RAM the program needs to run properly.
Summary: Open the Apple menu . Click About This Mac. Click the Overview tab. Review the "Memory" heading. Check your Mac's RAM usage

In one sentence, describe what the following article is about: Preview comes pre-installed on your Mac and will open almost any type of image.Ctrl + click the image and select "Open With." Choose "Preview." If you run into an image type that you can't open or that looks wrong in the software, try using a web converter or Gimp. The image has to be on your computer for this method to work. If you've not yet downloaded the image to your computer, you'll need to do that first. " A box containing several menus will appear. You can also adjust the quality and resolution if you wish. The higher the quality or resolution, the more space the photo will take up on your hard drive. Make sure the name of your file ends with ".jpg" (case does not matter) then select a saving location that you'll remember. Click "Save" to complete the conversion.
Summary: Open your image with Preview. Click on the "File" menu and select "Export. Change the format to JPEG. Rename the file and save.

In one sentence, describe what the following article is about: Mark messages as spam to have them automatically filtered out of your inbox in the future. When you receive spam, select the message and mark it as spam. This will mark the sender as a spammer, and all subsequent messages will be diverted to your spam folder. Most web mail clients (like Google Mail, Yahoo! Mail, Outlook, and more) already have built-in spam filters that automatically move spam to your account's spam folder. Spam filters are able to recognize spam by their text characteristics and large numbers of recipients. Spam messages are e-mails randomly sent to a large number of recipients, often for marketing or scamming purposes. Since spam messages can contain viruses, it's a good idea to avoid opening the message in order to mark it as spam. It is better to simply delete the message, rather than get a virus while trying to mark it as spam. Different email clients will have more powerful spam filters and other features. If you aren't impressed with your email service, try using a different one. Gmail is generally considered one of the more effective at filtering spam and has a large number of tools available for you to further control your email. If your email address requires that you use a particular client but you want to try another one, have your existing client forward your emails to a new address with a different client. You should only give your email to websites you trust and that have a good reputation. You don't want to give out your e-mail address unless it's really important. An e-mail address is one of your personal points of contact, just like your cell phone or your home telephone number. Being responsible about signing up for websites will often help reduce your emails. Although a website you give your email to might not email you themselves, they might sell your email address to another company which will spam you. Businesses that you give your email address to in real life may also do this. Be wary of particularly disreputable industries like travel agencies and bridal shows. Since they know exactly what you're looking to spend money on, they can easily sell your email address to related companies or services. Sometimes you might be inclined to post your email address on a website. This might be your own personal website or it might be the comments section of another website (like news websites or blogs). Another common mistake is posting your email address in forums. There are people who troll the web for email addresses and then sell those addresses to companies that want to send you spam. By taking some precautions, you can make sure this doesn't happen. One common solution is to write the email out instead of just listing it. So, for example, "jackjohn@email.com" might become "jack john at email dot com". If the website where you want to post your email is your own, you can create a link which automatically generates an email to you instead of posting your address. This is known as a "mailto:" link.
Summary:
Teach your email to recognize spam. Try a different email service. Avoid websites and services that ask for your email. Don't post your email address on websites.