L13 - operating systems

1. An operating system is a type of software. 
• True
2. Operating systems control the loading of software applications onto the computer
• True
3. All OS's offer user preferences allowing you to customize your computer.
• True
4. An Operating system priorities the tasks that a CPU does
• True
5. The following devices have an operating system: Apple iPod, a Dell laptop computer, Nintendo Wii
• True

Job Shadowing

I Job shadowed my Girl Scout Troop leader who is a Information Technology office worker who runs apps and social media for NC State. They do lessons on google things like calendar, docs, slides, ect.

https://oit.ncsu.edu/

7:20 I got picked me up and we headed to NC State. There was a lot of traffic so we go there are about 8
8:10 We sat and talked and introduced myself to a lot of people around the whole office for a long time he showed us his office and everyone else's offices and they told us what they did me what they did in that job. There was a graphic designer, communicator, tech guy, ect.
9:00 we went to get coffee across the street from his office and we had to wait a while actually because they took along time to make it.
9:30 we went back to the office and talked to more people that came in while we were gone. They then showed us there Apple TV and they showed us an Apple TV App they made for students to stay updated with sports and events.
10:15 They showed us their IOS App on the App Store and how it worked. It had things like the lunch schedule for the day at different dinning halls. Speaking of dinning halls he mentioned we would go to a dinning hall later today.
11:00 We walked around the campus in the light rain and toured a lot of different buildings we stopped new nelson hall to take pictures
12:30 We ate at the dining hall and he payed for our meals, so kind.
1:00 We started to walk back to the office still lightly raining
1:30 We got back to the office and worked on the scratch program again while he took a conference call
1:45 We went to the Apple TV room again and watch videos about new technology and cool creations
2:10 My dad picked me up and I went home

Lesson 11 - The Internet

What is the internet?

The internet by definition is "The Internet is the world’s largest wide area network (WAN)." A WAN is a Wide Area Network. This basically means it is a simple way of sending information across the world and communicate. Using the internet you can send messages to people from anywhere else that has internet. Lastly it has a lot of information that you can use for research or curiosity. 

What is a protocol?

Protocols control or enable the connection, communication, and data transfer between two computing endpoints. The first protocol was made in 1969 and it was on the ARPANET. The system was being used for email. Also, in the late 1900's there was 200+ computers connected to it. There was a new set of protocols called TCP/IP that became the standard that networks used. They used this to exchange data.

What is DNS?

The DNS is the Domain Name Service. There would be no internet communication without DNS. The DNS resolves or translates IP addresses so we can communicate online. Applications send a request which is called a DNS lookup to the computers DNS server. The servers only have limited number of information about it. It is compared to a phone book.

Explain what an ISP is and what it does?

ISP is Internet Service Provider. It connects through routers that connect to LANs and WANs on the Internet. As the data travels through routers it hops. It does this so it can get where it needs to go. Traceroute is a tool you can use to show how data is routed through the internet. 

What is a PING and Firewall?

A ping is another computer that is used to determine whether there is a connection to it. It send test packets over the internet you are connected to. Then it tests if the computer they sent it to receives it.Pinging a computer can show you if you are connected to the machine and if it is working. A Firewall is a system designed to prevent unauthorized access to or from a private network. A firewall can be software or hardware based.

Connect To The Internet Summary

      The internet is made up of little networks that are all collected together. The smallest networks are the networks that are individual internet users. These are usually set up at homes. The small networks get connected to larger networks. Backbones and routers handle data at very high levels. Backbones are larger and  have bundles of  fiber-optic cables. Routers are responsible for moving data to other networks or parts of networks.

     Internet Service Provider is ISP. It is what helps individuals and companies connect to the Internet. When you sign with an ISP you should be given and email address. They also allow customers to choose what type of service that best goes with what they need. Connections can be made with a copper wire in telephone lines TV. These wires that are fiber-optic lines,

      To connect you computer to the internet there are many ways. You can plug you computer into a modem and just turn the modem on and it will work. You can also you wireless internet connect so basically a modem without a plug. DSL connect which are used on phone lines. DSL are always on and will work "24/7".