Chapters 5, 9, and 15

Chapter 5
Reading chapter 5, gave me a clear understanding about Fiber-Optic Transmission. It is a very important part in the technology world. Light emitting diode or laser diode is part of the FO transmission that has optical energy, and beams of light. It was a technology device that was able for people to communicate to each other. How the FO transmission works is there needs to be a beam of light with a optical signal. This is like a massager to give information. Also, FO is used for people to watch television. Today, FO transmissions are linked with new technology that can work together to hold a lot of information. The advantages of FO line is can compact a lot of information. For example, Fo lines have gigabit-plus range with a 0.75-inch fiber cable. A disadvantage for a FO line is that there could be a loss of signal could be weak.
Chapter 9
The optical disc can be put into two different parts, which includes; non recordable and recordable media. Examples for a non recordable media includes; digital versatile or DVDs. Examples for recordable are Write once, read many and erasable programs, meaning CD ROM and DVD families. They are both related in certain ways. Both can store information in a type of form with pits or found in erasable systems. Fingerprints and scratches for optical disks are protected from these damages.
In today’s world with technology and new programs are being invented, it is important that there is enough storage in the system. Optical drive or media can be used to make sure there is enough storage for the information. In the future a CD-ROM may not be around anymore. However, CD-ROM is a capable of holding a lot of information, good for the market, and the cost is reasonable. Another system that can be able to hold a lot of information is the hard drive.
Chapter 15
There are many changes taking place in the communications world. As consumers it is important to know the current changes of communications dealing with devices like Video-On-Demand and the Internet. Video-On-Demand is able for viewers to see many different programs from their television or optional service. VOD has many different forms including pay-per-view. The pay-per-view is for viewer to be able to purchase a movie, concert, or special event to be able to view. VOD is like a movie rental place, except a person doesn’t have to drive there, they can make the purchase in their own home. Around the 1970’s, the Qube cable television service in Columbus, Ohio was developed. The Qube cable television service was able for people to cater to their viewing needs for the cable service. Later in the years the Qube cable television did not exist anymore.