If you're using an office computer with multiple users, consider turning off the feature that saves passwords. Click the "Firefox" menu in the upper-left corner of the screen, select "Options" and select "Options" again. Go to a website where you want to save your username and password data. Fill it in and log in. Firefox will show a prompt offering to remember the password. Click "Remember Password. Go to the website for which you want to save your data.
Fill in your login information and log in to the website. Click the Save button. Note: Apple no longer supports Safari on Windows. Note: To view and remove stored passwords within this browser in the Passwords window, scroll down to view the list of stored passwords saved in Chrome. Note: To view and remove stored passwords within this browser in the Passwords window on an Android device , scroll down to view the list of stored passwords saved in Chrome.
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Global Functions on VIN. Video Help on Global Functions. VIN for students. Message Boards. Message Board Preferences. Post and Reply. Sports fans might visit the sites of their favorite teams to relive past days of glory.
Music fans might check out their favorite artists online to listen to music and watch videos of concert performances. If you spend much time on the World Wide Web that's where that ubiquitous www comes from, by the way , there are a couple of things you're sure to run into over and over again: usernames and passwords. Most people have a wide variety of usernames and passwords they use for various sites they visit frequently.
Creating unique usernames and passwords is an important step in protecting your online identity. You don't want others to guess your username and password. With that information, they could purchase things online using your money. They could also post inappropriate or embarrassing things on social media using your account. If you have several usernames and passwords for different sites, you've probably already realized how difficult it can be to remember all the different combinations.
But what about all those websites? Social media sites, such as Twitter and Facebook, receive millions upon millions of visitors daily. How do these websites remember all those usernames and passwords to verify everyone's online identity? Fortunately, unlike us humans who have to use our brains to remember things, websites rely upon advanced computers with huge memory capacities to store all those usernames and passwords in databases.
Moreover, all those usernames and passwords don't necessarily take up all that much space in the grand scheme of things. The basic unit of computer memory is the byte , which is equal to a single alphanumeric character. If your username is "wonderfriend" and your password is "w0nd3rfr13nd," then those 24 alphanumeric characters take up 24 bytes of memory. Some people use shorter usernames and passwords, while others choose longer, more complicated usernames and passwords to bolster Internet security.
For the purpose of learning more about memory, though, let's assume that everyone uses a username and password combination that adds up to 24 characters, which would equal 24 bytes of memory.
A byte is actually a tiny unit of memory in today's computing world. Today's computers and hard drives measure memory in much larger quantities. Let's take a look at a few of the most common units. A kilobyte kb equals 1, bytes. One kilobyte of memory would thus hold a little over 42 username and password combinations. A megabyte mb equals 1, kilobytes. Using basic multiplication, we can calculate that one megabyte of memory would hold over 43, username and password combinations.
A megabyte still isn't much memory these days, though. Today's computers and devices usually have memory capacities measured in gigabytes gb and terabytes tb. There are 1, megabytes in one gigabyte, and there are 1, gigabytes in one terabyte. Continuing our use of basic multiplication, we can calculate that one gigabyte of memory could hold over 44 million username and password combinations.
If you have a smartphone with a capacity of 64 gigabytes, it could hold nearly 3 billion username and password combinations.
Since websites are hosted on advanced computers with storage capacities that exponentially exceed those of a smartphone, you can see how easy it is to store a few hundred million usernames and passwords!
Are you ready for some technological fun? Ask a friend or family member to help you check out the following activities:. Hi, Aiden! Great job doing some extra research on this Wonder! A kilobyte can either be 1, bytes or 1, bytes. The prefix "kilo" also means 1, We're so glad that you're asking questions! Good question, School! You should submit that to our Wonder Bank and we just may do a Wonder of the Day on it someday. So glad you enjoyed this Wonder, Trev-dog!
The internet is a crazy place sometimes. Hey there, Kaiden! We're really glad to be sharing Wonders of the Day with you! For your privacy, we removed your address from your comment. For more tips on staying safe online, visit Wonder !
Yeah, Trev-dog, it's always good to be wary of people asking for personal information online. If it doesn't feel right, tell an adult and DON'T put in anything personal about yourself.
Stay safe out there, guys! Thank you for sharing your comment with us! Best wishes on your project! Thanks for sharing your thoughts, Wonder Friend. We're glad you visited our website, even if you don't like to. That's a good question, Isabella! We ask for a valid email address in order to help prevent spam comments from being submitted. We never publish your email address and we never email you without your permission.
That sounds neat, F. You might be interested in exploring Wonder ! Welcome to Wonderopolis, Skye! We are excited to share more Wonders of the Day with you! Thanks for sharing your opinion with us, Hunter. Some websites are like other products for sale -- to use them you have to pay.
Hey there, Sebastian! We're not sure which stories you are meaning. Are you referring to a different Wonder of the Day? I consider usernames somewhat confidential too, so I think this was not a great automated move by the Chrome team. You can turn it off, but the username is still saved in your local?
If you turn it back on, you'll see your username has been preserved. Still no clue how to remove the sensitive data. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown.
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