Friday, November 17, 2017

Internet and IP adresses

1 a set of guidelines for implementing networking communications between  computers
2 the number assigned to a particular pc or device that gets connected to the internet
3 the network connects to backbone routers which connect to LAN routers that can be chained further.
4 32 bits
4,294,967,296 IPv4 addresses 
6 IPv6 has more bits and combinations for unique computer addresses
7 because we are running out of unique IP addresses with the current system
8 an IP packet is a small piece of data that is bundled in a group, and when all the packets get put together they make up a file or image
9 an IP address is your computer address where IP packets are sent to you. and IP packets is the pieces of information that you send to other IP addresses
10 DNS is the decentralized naming systems for computers, services, and other resources connected to the internet or private network.

Tuesday, October 31, 2017

tech blog

Article one - companies sell off your data to  get money even though they are giving out free apps and services, whether the companies keep your data or not is entirely up to them and you have very little say in what information they are actually able to take from you. Even when you block companies from using location data (from apple's pop up) the only thing you are actually preventing is them using your data to  improve your in app experience they still take your data and sell it off regardless of if you say they can or not.

Article Two - It is very easy for anyone from any background criminal or not to be able to send you targeted add that mine  record your location. even someone who stays online smartly without interacting with any malicious content can still fall victim to these adds and have their location harvested. Also sending targeted ads to people is something anyone can do (given they have approx 1000 dollars o spend).

Article Three -  This blog was about how using location tracking in apps can also be useful as well as negative to people, positives would be the ability to send your location to those who need to meet up with you, for example if your injured and you need urgent help the police or ambulance could come to your location. while other apps like snap chat and Instagram give your location away other people even if you didn't want them too

Opinions - In my personal opinion, privacy has always been an illusion. I think that the location tracking of anyone is a good idea as long as that technology in managed in a reasonable way, for example only having the government to access it scout out suspicious individuals, I never really minded the government being able to look into people privacy but I think that it becomes unethical or immoral when companies and the average Joe is allowed to do it.

Tuesday, October 3, 2017

Microchipping

Microchipping

Pros:
- helps to keep track of kids, more than 2000 kids are reported missing in the US each day
- identification digital data like drivers licence and credit card can be stored on a microchip, meaning you'll never have to worry about forgetting it

Cons:
- bodily migration, it is possible for chips to move through your body after they have been impanted
- Long term effects, nobody knows what happens when your body is exposed to implants long term, eventually your body could reject the implants.
- Data leaks, If all your information is on one chip in a readable form then hackeress will will have no problem getting all your personal data.

Tuesday, September 12, 2017

Everyday algorithm

1e. peel an  orange

1. pick up the orange
2. use your thumb to make a hole in the skin of the orange
3. place your thumb gently in the hole
4. gently put your thumb under the skin and pull back
5. tug on loose skin removing it from the fruit

Thursday, May 11, 2017

IP questions

1. protocols consist of the functions of networking (TCP/IP/FTP)

2. IP address is the unique code given to your computer and used to identify other computer, when you want to find a website your IP address contacts the DNS to find the IP that is coupled with a domain name.

3. IPv4 uses 4 bytes of data to make a code, IPv6 expands this adding letters to make it more complex creating more unique addresses

4. IP packets are the packets of data the your IP sends to other address.

5. the DNS is an index of domain names and the appropriate IP address's given to them

6. 192.107.120.236

Monday, April 3, 2017

Psuedocode - Algorithms

Brush Ones Teeth -

-using your dominant hand pick up the toothbrush by the hand.
-with your non dominant hand unscrew the cap to toothpaste
-continuing to use your non dominant hand bring the top toothpaste to your tooth brush
-make sure the head of the toothbrush is level with the bristles facing up
-lay the tip of the tooth past to end of the bristles closest the hand gently squeeze pulling the toothpaste to the end of the brush
-stop squeezing once the toothpaste has reached the end of the brush
-

Eat an orange

-peel the outer skin off the orange using your fingers
-pull apart the the individual peices
- grab one peice and put it in your mouth
-begin to chew and then swallow

watch Tv

- press the on button with your index finger
-sit down in front of the tv
-look at screen