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If you're setting up a worksheet only for yourself, you can simply leave an empty cell for this purpose. To check it, just type in an x or any other character. Then use a formula with the =isblank() function to make the contents of that cell affect the rest of the spreadsheet. But you might want something more mouse-friendly--especially if you're designing a spreadsheet for other people. I've tested the technique below on Excel 2007, 2010, and 2013. I'm not sure about earlier versions. You can insert checkboxes on Excel's Developer tab. Unfortunately, that tab is hidden by default. To make it visible in Excel 2010 or 2013, click the File tab and select Options. ClickCustomize Ribbon. You'll see two lists. Make sure that the one on the right is titled Main Tabs. Check Developer.

Ohsopopular is a service to see how popular a URL is on the web. We check a bunch of different services and give you a number like Google Pangerank, Alexa Rank, Number of bookmarks on Delicious and so on. It's basically a perfect tool for webmasters to check how your site is ranked across the web.

While it becomes impossible to live without your iPhone 4S, you must be a bit worried about the habit of the gadget eating up all the battery at inopportune times.there are still some vital tips and tricks you can follow to improve your Smartphones battery life. Low Down The Screen Brightness Just as it goes for your laptop devices, you need to lower down the brightness of your iPhone screen, which will enhance the battery life. Adjust the screen brightness under the Settings tab. Make Use of Wi-Fi When You Can Instead of making Voice calls, downloading apps or browsing the Web over your iPhone 3G or cellular connection, it is recommended to always find a Wifi hotspot or make use of your home network. This will help you keep away not only from data charges but also will aid you have a better battery life as your device will not be searching for the data signals. Remember, if you are in an area where there is no Wi-Fi hotspot, it is better to turn off the search and it will help save the battery life of your iPhone 4S. Do Not Use The GPS Tracking Feature If you are using apps that support the feature of Automatic GPS tagging and location such as Twitter, Instagram and Facebook, your iPhone is working overtime to determine your location. If you do not want to be Geo-tag your updates and posts, must keep the GPS function off. Do Not Use The 'Fetch' & 'Push' feature If you have your iPhone 4S set to 'fetch' the data after every 30 minutes time along with numerous apps to push new alerts and messages as they happen, then you need to turn off this feature on your device. This feature is going to drain your battery. Only use the facility when you really need it otherwise keep it off. Keep Your Notifications In Check To enhance your iPhone 4S battery time, you need to limit your app notifications to just the apps you make use of more often. This actually means that you have to say 'no' to the requests for all kinds of notifications you ge

The release of Microsoft's latest OS Windows 8 is coming with a new version of Internet Explorer. This version is Internet Explorer 10 which also has a built-in spell checker tool. This tool automatically checks and corrects spelling and grammar in webpages. But, many users want to disable this feature permanently. Go through the Techvedic's present tutorial.

Here is good news for Facebook lovers. If you are a Mozilla Firefox user and spend most of your time on Facebook then the latest Firefox version is coming with a new feature called "Social API" which is helpful in accessing social networks like Facebook, Twitter, etc. As per this new feature, you can add social network buttons and sidebars in Firefox window so as to chat with your friends, checking messages, notifications, etc. get quick and easy.

Soaring mobile Internet penetration has given new success dimension to the social network usage. Facebook, has recently reviled that 488 million users regularly use Facebook mobile, and a leading digital media firm Socialnomics has admitted that 23 percent of Facebook's users check their account 5 or more times daily. But a sad news is that, taking clues of the popularity, Internet attackers have targeted 54% of Social Networking Customers, claimed Barracuda Networks, a web security company.

This is the schedule for University of San Francisco's CS107-01, spring 2011. The schedule is subject to change, so please check back regularly.

To celebrate the 100th anniversary of Turing's birth, a team of geeks from the Netherlands decided to explain to the world just what the heck a Turing machine is--by designing and building one of out Lego. Check it out:

"A plethora of cool open source tools is available out there, but not all of them are up to the mark. So today we have a list of 9 Must Have Open Source Apps For Web Developers. Check this list out and pick the ones that suit your needs the best."

Using a wireless technology for browsing websites, checking mails, chatting on social networking sites, etc. is very common nowadays. But, this easy networking comes at a risk. Let's go through this tutorial for making your web browsing safer in tablets.

As a responsible customer, you always take time for major tech purchases like smartphones, tablet, etc. You always go through the features, check system compatibilities, measure dimensions and read product reviews. Thus, here are some tips to get the most out of your device.

Spamming is generally unsolicited communication targeted to deceive users with tricky messages from remote locations. However, most of you live in a misconception that spamming is confined only to email service. Such communication may leave you in puzzled state even with the Web-based services like Facebook, Twitter or LinkedIn.

Recently I had someone ask me a question I wanted to share with you. They asked me why in the heck their IP address appeared to be coming from the other side of the country? Honestly, I can understand why this would freak someone out! Imagine not understanding what is going on as you do an IPChicken.com check only to see the IP looking odd. Then you run a speed test and learn you're suddenly based in another region of the country. I mean come on, that is just going to feel weird to the uninformed.

Though some of the details have changed in the intervening years, the basic principles for evaluating an unknown source remain relevant, I think.

In computer science, linear search or sequential search is a method for finding a particular value in a list, that consists of checking every one of its elements, one at a time and in sequence, until the desired one is found.

10 ways to save your smartphone battery

Sometimes being unaware of the USB virus-or malware-infection, you may put your computer security at stake. The AutoPlay feature of the Windows, executes the file or program stored on your device, without asking for permission, and that may bring havoc on the operating system as well as the confidential data stored on the machine. Thus, you need to disable the AutoPlay feature to deter such security breaching.

 Oracle Academy prepares students for 21st century careers and provides teachers with world-class training and professional development opportunities.

I checked out their website and I find it a bit of a joke. First off, their Introduction to CS includes topics like PL/SQL which is proprietary. Oracle states that their Introduction to CS workshop is free and then when you go to enrol it is only available in China, India, and Brazil. I was expecting them to offer something like the FREE course that Stanford offered this spring by Nick Parlante.

"If you've never been here before, check out this introductory video first. Then get coding! If you want to learn more about the platform please read the following post."