Computers

and the IEEE Computer Society
http://computer.org/
an external link will open
With 100 000 members in 143 countries, the society is the world's
oldest and largest organization of computing professionals

* * * * *

GOOGLE
Google uses a algorithm called PageRank to
determine what web sites a Google search will return.

The Google ranking takes into consideration:
1. the number of links to it, from other sites
2. the popularity of those other sites
3. the words used in those links

The traffic to the site is not a factor.

This is why a Google search of miserable failure returns the
biography of George W. Bush. More people have the words
miserable failure linked to his biography than to any other site.

(When a group of people do this, it is called "Googlebombing")

Another example is Weapons of Mass Destruction.

* * * * *

Electricity
transmission power loss grows with the square of current,
which is why the power distribution grid uses high voltages
from power plants:
"EHV" is >300kV Extremely High Voltage
"HV" is >36kV High Voltage
into cities, towns, and villages:
"MV" is 1kV - 36kV Medium Voltage
to customer premises:
<1kV, usually 120V
normally 1-10 customers per transformer

80% of power lines in the US are above ground

* * * * *

Telecommunications

ANACs (Automatic Number Announcement Circuits) can be reached at
1-800-555-1140 and 1-800-555-1180
when an ANAC is called, an ARU (Audio Response Unit) announces
the ANI (Automatic Number Identification) that you are calling from.

DS1 = (24) DS0 channels + (1) framing bit =
(24 x 64 Kbps) + 8 Kbps = 1.544 Mbps

T1 = PRI Primary Rate ISDN = 23B+D =
23 B-Channels @ 64 Kbps + 1 D-Channel (signaling & link mgmt.) @ 64 Kbps

T3 = 28 T1s =

Telecommunications companies use 8-character CLLI "silly" codes to describe their building and equipment locations.
CLLI = Common Language Location Identifier

some AT&T CLLI codes:
WAYNPALA - Wayne PA Lancaster Pike (60 West Ave.)
KGPRPAIC -King of Prussia PA ??
CPHLPASH - ??
NWRKDE03 - Newark DE #3?

http://www.telcodata.us/

POTS = Plain Old Telephone Service

2005:
SBC bought AT&T for $16 billion
Verizon bought MCI for $8.4 billion

Pay Phone Red Boxing
1700hz & 2200hz mixed together is called DTMF

duration of each coin:
nickel   66ms on [one beep]
dime   66ms on; 66ms off; 66ms on [two beeps]
quarter   33ms on; 33ms off - repeated 5 times

VoIP
Circuit-Switched Systems are being replaced with Packet-Switched Systems
On 2003.05.06, Verizon installed their first IP-enabled switch in a Long Distance network

www.blacklisted411.com
carderplanet
darkprofits
shadowcrew.com
www.underroundmac.com

* * * * *

Errata

Three Laws of Robotics

First Law   A robot must not injure a human being, or,
through inaction, allow a human being to come to harm.

Second Law   A robot must obey the orders given to it by human beings,
except where such orders would conflict with the First Law.

Third Law   A robot must protect its own existence as long as
such protection does not conflict with the First and Second Laws.

-Isaac Asimov, Runaround, 1942

Privacy
"the quality or state of being apart from company or observation; seclusion"
In 2005, 300 million cell phones with built-in cameras were sold.

FM Transmissions
transmitting anything over 100 milliwatts is illegal

The FM-25 and FM-100 both transmit > 100 milliwatts (0.1 watt)
www.ramseyelectronics.com

An IT worker is often thought of as a:
sysadmin
script monkey
tech support lackey
cable jockey
network traffic cop

good names for servers include:
Elvis (pings return "Elvis is Alive")
Watergate or Tapeworm for tape backup units
JohnnyCache for a web caching server
VWBUG for a Virus Wall server
Area51 for a remote server

nom de guerre

Relational Database market share

    year                Oracle         IBM DB2          Microsoft SQL
2003                40.3%           31.8%              12.3%
2004                41.3%           30.6%              13.4%
2005

a HP study estimates that corporate servers use 10%-35% of their processing power
an IBM study estimates desktop utilization rates of 5%

32% of U.S. adults are not connected to the internet.
-InformationWeek, 2005.10.17
who are these people?

wanted

THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION
IS SUBJECT TO THE FOLLOWING CONDITIONS: (1) THIS DEVICE MAY NOT
CAUSE HARMFUL INTERFERENCE. (2) THIS DEVICE MUST ACCEPT ANY
INTERFERENCE RECEIVED INCLUDING INTERFERENCE THAT MAY CAUSE
UNDESIRED OPERATION.

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