Wi-Fi does not allow you to access the Internet in places where there is no wireless router or hotspot. Consequently, if you want Internet access in areas without a Wi-Fi signal, you need to rely on the 3G and 4G wireless networks used by mobile phone carriers. AirCard is the brand name used by Sierra Wireless for its USB and Express Card wireless modems. However, many users use the term “air card” generically to describe wireless modems from other manufacturers as well....

There is no “Block” button anywhere on the LinkedIn platform, as you find on other social networking sites, such as Twitter. So there’s no fast and easy way to completely block anyone, including your employer, from viewing your LinkedIn profile. But there are ways to ensure that your profile and and elements within it are less visible, making it harder for your employer to see certain things that you don’t want her to see....

The iTunes software for PCs allows you to manage files that are synced and backed up between your iPhone and computer. However, you might run into trouble deleting these files if your iTunes software is buggy or out of date. Additionally, your iPhone sync settings might need to be changed before you can remove specific types of data, such as music, movies, TV shows and apps. You can uncheck media on the “Movies,” “TV Shows, “Podcasts,” “iTunes U,” “Books,” and “Photos” sections to manage and remove unwanted files on your iPhone....

When browsing through YouTube, you may run into a video you find, for one reason or another, objectionable. While you can’t delete these videos directly, since they’re not on your account, you can contact YouTube staff and make a case for their removal. How you do this depends on you issue with the video.

The Twitter client TweetDeck only offers a limited number of Facebook functions. These include being able to post to your Facebook Page, but it doesn’t offer tools for managing any of the content or making any changes to your account. TweetDeck is available as a free online or desktop app. Writer Bio

Google offers an easy, fast and free email service called Gmail. With hundreds of millions of users it has grown into one of the largest email services in the world, and you can easily start using it in just a couple of minutes. If you like it enough that you want to switch away from your old Comcast email account, that’s easy too. You need only inform your contacts of the change....

The restaurant industry once functioned primarily on manpower, gas flames and paper and pencil. Today a modern restaurant is a high-tech computerized environment where many tasks are accomplished automatically by computers to make the operation run smoothly and to lighten the load on the employees of this demanding service business. Restaurants ranging from fast food burger joints to fine dining establishments rely on computers to lend a virtual hand. Writer Bio

Outgoing email is sent through a Simple Mail Transfer Protocol server. The Mail app on your iPhone needs the correct Cox SMTP server set for you to be able to send email using your Cox email account. Your iPhone should have detected the settings automatically when you set up the account, but it may not have, or Cox may have changed the settings after you set up the account. Writer Bio

Sign in to your Gmail account, click the gear icon and choose “Settings,” which automatically brings you to the General tab. Scan the options under “Maximum page size,” determining number of messages on the page and “Conversation View,” which determines how Google groups your messages. Change or retain these options, depending on your preference. Press “Save Changes” when finished. Return to your settings by way of the gear icon and choose the “Labs” tab to access experimental features....

The ability to cut and paste is available on most computer-based devices. There are various ways to cut and paste on a Macintosh computer, Windows PC, iPad and cell phone. This is a simple process once you know what the steps are. Writer Bio

Sharing encrypted messages is not a foolproof method of communication, and as such different encryption methods exist. A common one is public-key encryption, which requires both parties to have public and private keys to communicate. While this offers more in the way of security for users, it also means that the encryption and decryption processes are more complex and thus slower. Also, this encryption method does not address some problems with message tampering and authentication, both of which are serious security concerns as well....

Dish Network TV can be a great alternative to cable. Unfortunately, the snow that plagues most of the country each winter can wreck havoc on satellite reception. A few tips can help keep your reception coming in clearly all year.

Tumblr Profile Photos Tumblr profile photos, also called portrait photos or avatars, display with each of your posts in your followers’ timelines. Users can hover over the avatar to see a menu of options for communicating with you. If you have enabled Ask or Reply functionality on the blog, your followers can message you from this menu. Convert Existing Image to GIF If you have a copy of your Tumblr avatar saved on your computer, you can convert the image to a GIF file using Microsoft Paint....

From cute baby home videos, to crazy stunts, wannabe singing stars and flash mobs, the range of what you can find on YouTube is amazing, and some uploaders gain fame and fortune from their homemade videos. However, just because you can film it, doesn’t automatically give you the right to upload it when there are other people on the other side of your lens. The rule that applies here is “expectation of privacy....

Online mahjong games are puzzle games that are based on the Chinese table game, but online mahjong play is a bit different from the table version. In the basic game, there are 144 tiles that are placed in a pyramid pattern. Your goal is to match two like tiles and clear them from the game board. The tiles can be buried under or surrounded by other tiles. You win the game when you have cleared all of the tiles from the board....

Many sign-up games are available on the Internet, typically targeted towards a specific age group. Some games are aimed at kids while others are adults only. It’s not often you find online games targeted at females only, but the ones that do are designed for the girliest of girls. Writer Bio

Computers connected to a network such as a local area network, or even the Internet, often have multiple connections going into and out of them. Most of these connections are usually legitimate websites and programs. However, other times there may be malicious attackers accessing your computer, or possibly Trojans or other malware. You can check to see what’s accessing your computer using a tool built into Windows. Writer Bio

Getting online with a laptop when you are away from home or the office often means resorting to free Wi-Fi hotpots in coffee shops and libraries. Not only is this a haphazard, unreliable approach to having Internet access, but public wireless connections are always a dicey option. The AT&T LaptopConnect card is an alternative for getting Internet service on your laptop almost anywhere you find a broadband data signal. An AT&T data account and laptop modem card are the essential components of the service....

Newegg is an electronics and computer online retailer. The retailer engages consumers by allowing them to shop and make purchases on the site. This is done through an online account. If you do not use the account, you can close it. However, Newegg, as of June 2011, does not allow closing of accounts online. Writer Bio

Cell phone batteries, like all rechargeable batteries, contain chemicals that can harm the environment if they begin to crack and leak. Properly disposing of rechargeable batteries means recycling them. Many companies participate in programs where consumers can drop off their old batteries to be recycled at no charge. The non-profit Rechargeable Battery Recycling Corporation has helped set up a network of 30,000 recycling drop-off locations for consumers. Writer Bio