Thursday, November 20, 2014

Operating Systems


  1. An operating system is a type of software. True

This is true because the company that makes the computer downloads it onto the computer

     2.  Operating system control the loading of software onto a computer. True
true the operating system monitors everything is controlled by the operating system

     3.  All OS offer user preferences allowing you to customize your computer. True
You can customize computers settings on the setting screen

     4.  Operating systems prioritizes the task a CPU does. True
The reading said so and I listen to readings
  
      5.  The following devices have an operating system; Apple Ipod, Dell Laptop, and a Nintendo Wii. True
the all have a purpose that they do and you want a operating system to make them run more smoothly

I got them all right whoop whoop

Wednesday, November 12, 2014

Communicating on the internet

Email uses client/server technology. If you have ever sent or received an email you have been a  part of this connection.Whether you use a piece of software designed solely for the purpose of handling email, such as Microsoft Outlook or Eudora, or a web-based client provided by a service, such as Gmail or Hotmail, the client is what lets you perform tasks such as reading and sending email messages and downloading attachments. If you are using a program like Outlook, you will need to give it information that allows it to connect to the email server that you use.

After you send the email the first step is that your email client connects to a Simple Mail Transfer Protocol (SMTP) server for your email domain (the part of your email address after the @ symbol). The SMTP server then looks at the domain of the address that the email is being sent to and queries a Domain Name System (DNS) server to ask for the IP address of the domain in question. Once it has that information, the SMTP server connects to that domain and passes the message along to its SMTP server. There are two types of incoming-mail servers: POP3 and IMAP. The biggest difference between the two is that when you get an incoming email from a POP3 server, you download it from the server onto the computer you’re using. If you get email from an IMAP server, the email stays on the server until you delete it, so you can access it from any computer you can use to log in to your server.

Instant messaging (IM) has been around since the early 1990s. It grew up as an alternative to chat rooms for people who wanted to chat in real time over the Internet. Today, instant-messaging software allows you to do a lot more than chat with other Internet users. With IM, you can send and receive files, create chat rooms, and even send messages to and from a cell phone. Before you can use IM, you must first download the client software for whatever service you want to use. Once you have the client software installed on your computer, you can run the client to have it connect to the server. Once you've connected to the server, you can log in or create a new account.

Monday, November 10, 2014

How The Internet Works

What is the internet?
The Internet is the world’s largest wide area network. It is made up of millions of smaller networks. Everything that you find online, including web pages, email, instant messaging, FTP sites, online games, and more, comes to you through the Internet.It is the Largest Wan ever. The internet is used by everyone. Over 2 billion users.The Internet is rooted in the early 1960s, in a US government research project run by the Advanced Research Project Agency (ARPA). The researchers had three computers, two in California and one in Boston, and they wanted to be able to access each of them, regardless of their location. Their work to make this happen led to the idea that would become the Internet.

What is a protocol?
Rules for how computers in a network communicate with each other. These rules are called network protocols. Protocols control or enable the connection, communication, and data transfer between two computing endpoints. The first network protocol was established on the ARPANET network in 1969. By 1971 the system was being used for email, and in 1973 file transfers via File Transfer Protocol (FTP) began. By 1981 there were 213 computers connected to the network.

What is DNS?
DNS is like a phone book for the Internet; it looks up a host name and returns an IP address, or vice versa. When you type www.cnn.com into a web browser, the application has to go to a DNS server to find the IP address associated with www.cnn.com. Each part of the Internet has DNS servers, and each computer is configured to query a specific DNS server. Usually home computers are configured to query their ISP’s name server or a free DNS name server. Applications send a request called a DNS lookup to the computer’s DNS server. This DNS server only has information about a limited number of host names and IP address. 







Wednesday, November 5, 2014

Test

when you get a good grade on a test that no one else did well on.

Thursday, October 23, 2014

Learning about periphials

Peripherals- devices used for computer input and output
Keyboard- Inputs keystrokes such as ctrl alt delete and letters such as "y"
Mouse- input clicks and and lets you use the internet because without it you could not utilize it
Different definition helps utilize the monitor, they range from 1x1 to 100x100 being that 100x100 is the best.
Printers and disk drive also help utilize the computer






Monday, October 20, 2014

Computer Parts

HARDWARE
Monitor
RAM-Random Access Memory
Motherboard
CPU-Central Processing Unit
Disc Drive
Graphic card
ROM- Read Only Memory
Computer Case
Hard Drive
Sound Card
Ports
Power Supplies 


SOFTWARE
Operating System
Browser
Drivers ie Printer Driver
Microsoft Office

PERIPHERALS
Keyboard
Mouse
Speaker
Printer
External Hard Drive
Flash Drive
Bar Cord Scanner
Cards
Scanners
Cables
Projectors

Functions 
Graphic Design
Storage
Research
Shopping
Entertainment

Monday, October 13, 2014

ID Theft Faceoff

One of the best ways to protect your identity is using online passwords only you would know like your mother maidens name. False that is what crooks try first. When you use that information crooks can take all your information. Passwords like that can give crooks all your information.

The rest I got right