precise systematic method used to produce a specified result 

it is a general method like a currency

it must be written in computer language 

formal, precise (expresses and algorithm) 

human interactions ambiguous 

an algorithm has been customized to solve specific tasks under specific sets of circumstances expressed in specific languages 

EX= change in the us $

represented as a numeric quantity in the range 0-255 (1 byte 8 bits) change intensity by increasing or decreasing the values 

Black has no color 

White is full color intensity 

the smallest is all 0's 0000 0000 largest is 1111 1111

color scheme is mixing intensities 

goes from analog to digital 

sampling rate and measurement precision determine how accurate the digital form is --> in bits--> numbers--> speakers 

backing up is best because could have natural disasters 

1. disable file and printer sharing with internet

2. dont leave computer on or connect to web

3. install firewall

4. access control/passwords

5. biometrics- fingerprints 

any event or action that could cause loss of or damage to computer hardware or information 

an illegal act involving a computer (this is booming because of unemployed) 

1. email attachments

2. spoofed links

3. social engineering (new) 

4. p2p file sharing

5. 

act as if in person 

explain self completely and use emoticons 

sleep on emotional emails 

include question with answer

use automated reply

answer in reverse 

get sender permission before forwarding 

using one for all is risky make slight changes

they are scrambled or encrypted and are stored so system administrator usually cant tell you your password if you forget 

usually 8 characters 

laws have not ended it but filters have helped 

use the co's opt out option 

special category of spam specifically created to defraud or commit id theft 

EX= nigerian widow and spanish lottery (if too good to be true it is) 

privacy 

(where do threats come from) 

right of people to choose freely under what circumstances and to what extent they will reveal themselves, their attitude, their behavior to others 

the government (spying) and business (surveillance) 

choosing to reveal info in return for benefits (like doctors) 

the US uses this 

in 1980--- organization of economic cooperation and development

in europe

1. quality (up to date)

2. purpose (clearly stated)

3. limited collection (limits with consent) 

4. use limitation (no other purposes) 

5. security (protect) 

6. openness

7. participation

8. accountability (data controller accountable) 

cookies 

(whats 1st and 2nd field) 

small text file containing seven fields of info uniquely identifying customer (stored in hard drive) 

website can only read data from own cookie 

1st= server

2nd= id of web session 

ex: keep tract of shopping cart 

1. stick to specialist dont start with general search engine 

2. get information prescription from doctor 

3. consider the source (look at about) 

4. check for timeliness (when was it updated) 

5. seek out seal of approval 

6. follow the money 

7. guard your privacy disallow sharing 

self paced instruction, unique instructional experience with simulations models and real life situations 

digital divide(those who have access to technology with ability to use it versus those who dont) 

computers look like they think because they are fast

but they have to be programmed to work

alan m turing

turing test (makes computer look more intelligence but the computer doesnt know syntax 

to exhibit intelligence computer has to understand complex situation and reason well enough to act on its understanding 

* extent that creativity is algorithmic a computer can be creative

all computer have same power--- there is a difference with new and old SOFTWARE because the speed and operating system are the difference 

sometimes there is no algorithm 

86% doubt reliability 

what is good?

webmd is .com but still good 

.gov, .edu, .org

patient records, monitor vital signs, perform surgery, 

at mercy first hospital (in 08) who started robots with state of the art equipment for computer technology and surgery) 

FAQ to support customer

get immediate feedback

compare shopping 

24 hour access to millions of things 

adds shipping costs

returns are difficult 

shipping time is longer 

cant interact with product first 

shop during off hours

find better places 

saves time and trips 

no sale pressures 

look for and read the privacy policy 

(3)

how is information collected 

how will it be used 

who will have access to it