Understanding Gigabytes

March 8, 2008 – 7:11 PM

When people buy computers, they’re told they’re getting a hard drive of a certain size–80 gigabytes, perhaps. But when they check the computer they find only 74GB. Where did the other 6GB go? This is the difference between marketing and math. As far as marketers are concerned, 80 billion bytes is 80GB. But it’s not. A gigabyte is 1.074 billion bytes (2 to the power of 30). If you divide 80 by 1.074, you’ll get 74.6. That’s the true number of gigabytes.

These round numbers are fairly easy to remember. A kilobyte is 2 to the power of 10 (or 2^10), a megabyte is 2^20, and a terabyte (1.0995 trillion bytes!) is 2^40.

Few people are going to fill up that so-called 80GB drive, regardless of the stated size. Still, I wish marketers were more honest about hard drive sizes. It should be easy to understand what you’re really getting.

http://www.komando.com/tips_show.asp?showID=6782

 

 

Subnetting Cheat Charts

March 8, 2008 – 7:10 PM

I won’t get into a whole subnetting lesson here but, if you already know subnetting, then you’ll know exactly what these charts are and what they mean.I find them very helpful to have around. It saves lots of precious time.

Class A Subnetting

# bits Subnet Mask CIDR # Subnets # Hosts Nets * Hosts
2 255.192.0.0 /10 2 4194302 8388604
3 255.224.0.0 /11 6 2097150 12582900
4 255.240.0.0 /12 14 1048574 14680036
5 255.248.0.0 /13 30 524286 15728580
6 255.252.0.0 /14 62 262142 16252804
7 255.254.0.0 /15 126 131070 16514820
8 255.255.0.0 /16 254 65534 16645636
9 255.255.128.0 /17 510 32766 16710660
10 255.255.192.0 /18 1022 16382 16742404
11 255.255.224.0 /19 2046 8190 16756740
12 255.255.240.0 /20 4094 4094 16760836
13 255.255.248.0 /21 8190 2046 16756740
14 255.255.252.0 /22 16382 1022 16742404
15 255.255.254.0 /23 32766 510 16710660
16 255.255.255.0 /24 65534 254 16645636
17 255.255.255.128 /25 131070 126 16514820
18 255.255.255.192 /26 262142 62 16252804
19 255.255.255.224 /27 524286 30 15728580
20 255.255.255.240 /28 1048574 14 14680036
21 255.255.255.248 /29 2097150 6 12582900
22 255.255.255.252 /30 4194302 2 8388604

Class B Subnetting

# bits Subnet Mask CIDR # Subnets # Hosts Nets * Hosts
2 255.255.192.0 /18 2 16382 32764
3 255.255.224.0 /19 6 8190 49140
4 255.255.240.0 /20 14 4094 57316
5 255.255.248.0 /21 30 2046 61380
6 255.255.252.0 /22 62 1022 63364
7 255.255.254.0 /23 126 510 64260
8 255.255.255.0 /24 254 254 64516
9 255.255.255.128 /25 510 126 64260
10 255.255.255.192 /26 1022 62 63364
11 255.255.255.224 /27 2046 30 61380
12 255.255.255.240 /28 4094 14 57316
13 255.255.255.248 /29 8190 6 49140
14 255.255.255.252 /30 16382 2 32764

Class C Subnetting

# bits Subnet Mask CIDR # Subnets # Hosts Nets * Hosts
2 255.255.255.192 /26 2 62 124
3 255.255.255.224 /27 6 30 180
4 255.255.255.240 /28 14 14 196
5 255.255.255.248 /29 30 6 180
6 255.255.255.252 /30 62 2 124

My Last Year on the Computer

March 8, 2008 – 7:07 PM

I must send my thanks to whoever sent me the one about rat poop in the glue on envelopes because I now have to use a wet towel with every envelope that needs sealing.Also, now I have to scrub the top of every can I open for the same reason.I no longer have any savings because I gave it to a sick girl (Penny Brown) who is about to die in the hospital for the 1,387,258 nth time.

I no longer have any money at all, but that will change once I receive the $15,000 that Bill Gates/Microsoft
and AOL are sending me for participating in their special e-mail program.

I no longer worry about my soul because I have 363,214 angels looking out for me, and St. Theresa’s novena has granted my every wish.

I no longer eat KFC because their chickens are actually horrible mutant freaks with no eyes or feathers.

I no longer use cancer-causing deodorants even though I smell like a water buffalo on a hot day

Thanks to you, I have learned that my prayers only get answered if I forward an email to seven of my friends and make a wish within five minutes.

Because of your concern I no longer drink Coca Cola because it can remove toilet stains.

I no longer can buy gasoline without taking a man along to watch the car so a serial killer won’t crawl in my back seat when I’m pumping gas.

I no longer drink Pepsi or Dr. Pepper since the people who make these products are atheists who refuse to put “Under God” on their cans.

I no longer use Saran wrap in the microwave because it causes cancer.

And thanks for letting me know I can’t boil a cup water in the microwave anymore because it will blow up in my face…disfiguring me for life.

I no longer check the coin return on pay phones because I could be pricked with a needle infected with AIDS.

I no longer go to shopping malls because someone will drug me with a perfume sample and rob me.

I no longer receive packages from UPS or FedEx since they are actually Al Qaeda in disguise.

I no longer shop at Target since they are French and don’t support our American troops or the Salvation Army.

I no longer answer the phone because someone will ask me to dial a number for which I will get a phone bill with calls to Jamaica , Uganda , Singapore , and Uzbekistan

I no longer have any sneakers — but that will change once I receive my free replacement pair from Nike .

I no longer buy expensive cookies from Neiman Marcus since I now have their recipe.

Thanks to you, I can’t use anyone’s toilet but mine because a big brown African spider is lurking under the seat to cause me instant death when it bites my butt.

Thank you too for all the endless advice Andy Rooney has given us. I can live a better life now because he’s told us how to fix everything.

And thanks to your great advice, I can’t ever pick up $5.00 I dropped in the parking lot because it probably was placed there by a sex molester waiting underneath my car to grab my leg.

Oh, and I can no longer drive my car because I can’t buy gas from certain gas companies!

If you don’t send this e-mail to at least 144,000 people in the next 70 minutes, a large dove with diarrhea will land on your head at 5:00 PM this afternoon and the fleas from 12 camels will infest your back, causing you to grow a hairy hump. I know this will occur because it actually happened to a friend of my next door neighbor’s ex-mother-in-law’s second husband’s cousin’s beautician…

Have a wonderful day….

A South American scientist from Argentina , after a lengthy study, has discovered that people with insufficient brain activity read their e-mail with their hand on the mouse.

Colbert Roasts President Bush – 2006

March 8, 2008 – 7:06 PM

This is too funny!http://video.google.com/videoplay?docid=-869183917758574879&q=genre%3Acomedy&hl=en

What is fveNotify.exe in Windows Vista?

March 8, 2008 – 7:05 PM

You may see a Startup entry called fveNotify.exe and not know what it’s for because the description you see in the msconfig utility is not that clear. Here’s the details:

File Name: fveNotify.exe
Display Name: Microsoft BitLocker Drive Encryption Notification Utility
Description: BitLocker Drive Encryption Notification Utility
Publisher: Microsoft Corporation
Digitally Signed By: Microsoft Windows Verification PCA
File Type: Application
Startup Value: C:\Windows\system32\fveNotify.exe
File Path: C:\Windows\system32\fveNotify.exe
File Size: 48640
File Version: 6.0.6000.16386 (vista_rtm.061101-2205)
Startup Type: Registry: Local Machine
Location: Software\Microsoft\Windows\CurrentVersion\Run
Classification: Permitted
Ships with Operating System: Yes
SpyNet Voting: Not applicable