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Ask Mr. Modem! – January 2010     
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The Case of the Missing Gigabytes

Q.  I have a Dell, 160GB hard drive. While checking the size of the drive in My Computer, I discovered that my C: drive has three partitions: a 71MB, a 4.27GB, and a 144.67GB. Adding those three together, I get a little over 149GB, so there seems to be approximately 10GB missing. Where did it go?


A.  The apparent discrepancy is caused by differences in the units of measure associated with megabytes and gigabytes, one unit being rounded off, and the other not being rounded off. (Anybody getting a headache yet?  If not, keep reading.)

Disk capacity is measured using decimal kilobytes (KB), megabytes (MB), and gigabytes (GB). In decimal units, 1KB equals one thousand bytes, 1MB equals one million bytes, and 1GB equals one gazillion bytes -- okay, okay, just kidding. It equals one trillion bytes. But for file sizes, memory, and just about everything else computer related, for some strange, mysterious, and eternally confusing reason, we use binary kilobytes, megabytes, and gigabytes. In binary units, 1 KB equals 1,024 bytes, 1MB equals 1,048,576 bytes, and 1GB equals 1,073,741,824 bytes.

To convert your disk's 160GB decimal to binary units used by the rest of Windows, you have to divide by 1.073741824. Let me see if I can do it in my head. Nope. Not a prayer. Breaking out the official Mr. Modem simulated plastic slide rule (with faux Naugahyde sheath), the result is approximately 149GB -- which is close enough to what you calculated. So when all is said and done, there really are no missing gigabytes. Mystery solved.


Q.  I’ve been a subscriber of your excellent weekly newsletter for years, but I’ve never seen this question addressed: I suffer from RSI (Repetitive Strain Injury), so I have to find keyboard shortcuts for most of what I do at the computer. When reading articles online, every Web site requires a mouse to click the “Next Page” link. How can I move to the next page by keystroke instead of mouse click?


A.  Using the Web pretty much assumes you are using a mouse, though that does pose a problem for many people in your situation. There is a way around it, however, by pressing the TAB key. Repeatedly pressing the TAB key will move from one link on the page to the next. When it reaches the link you want (such as “Next Page”), press ENTER to execute the action. SHIFT+TAB reverses direction through the links which may be faster if the link you're targeting is near the bottom of the page. Pressing the END key takes you to the bottom of a page; the HOME key takes you to the top.


Q.  I have one telephone line and dial-up access to the Internet. Is there a way for me to be notified of an incoming call while I’m online, so I can go offline and answer the phone?

A.  BuzzMe.com (www.buzzme.com) is a service that will display a window when an incoming call arrives, so you can then decide whether to accept the call or reject it. There are several BuzzMe services available that range in price from $14.99 per year to $47.90 per year. The BuzzMe Notify service provides notification of incoming calls. Complete information can be found on the BuzzMe.com Web site.


Q.  Sometimes I receive an email of an appointment in Outlook. Is there a way to forward this to myself on a certain day so that when I open my email, it will serve as a reminder?

A. After you compose or prepare to forward a message, instead of clicking Send, click the Options button (on the Send menu bar). Under Delivery Options select “Do not deliver before:” Date/Time options will appear from which you can select and schedule the date and time when the message should be sent. Close the Options menu, then send the message. The email will be saved in your Outbox and will be sent when the date and hour match the scheduled date and time selected.


Mr. Modem’s DME (Don’t Miss ‘Em) Sites of the Month


AllMyFaves
A colorful, NASCAR-like search engine that includes what AllMyFaves considers to be the best sites in each of 41 categories. The categories aren’t listed alphabetically, which would be helpful, but AllMyFaves gets an “A” for originality, regardless. Try it a few times and it will grow on you.
www.allmyfaves.com

Seafood Watch
A program of the Monterey Bay Aquarium (oh, the irony), created to raise consumer awareness about the importance of buying seafood from sustainable sources and to provide reliable fish facts to help us make informed purchases. Use the Seafood Search to find your favorite seafood’s rating. Ratings range from “Good” to “Call the paramedics!” Each fish selected includes a consumer note, health alerts, and a summary. Hint: If you’re planning to have giant scallops tonight, you might want to think twice about that. Ixnay on the allopsscay. 
http://tinyurl.com/22r7zn

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