Totaram Jon ID#: 0470482 Cell: 321-278-7053 [e-mail] TESC, October 2011 COS101-GS006 Introduction to Computers Assignment 4 Chap6 Review: 3) Compression is an important part of digital audio technology because of audio in its raw waveform audio format is very large, hard to transfer over a network, and consumes a great deal of storage space. Compressing digital audio can lead to very little quality loss (from a listener's perspective) and shrink the file down to a manageable size to deal with. 4) Remixing song has become popular because of digital audio because digital audio can now be manipulated by the computer to create songs, add instrumentation, rhythms, beats, and audio samples. Digital audio remixing are two trends that have merged because of the advancements in technology and the advances in digital audio that create a common ground for the two to mesh and be integrated. This allows the audio to be composed, performed, recorded, mixed, and published all from one computer. 5) The difference between bitmapped graphics and object-oriented graphics is that bitmapped graphics or raster graphics change the pixels on the screen to show the picture that is being seen, in a map like form. Object-oriented graphics or vector graphics are quite different using lines and shapes, not a collection of dots. Advantages of object-oriented graphics are that it doesn't rely on pixels so the images when outputted are smoother, they are better at creating graphs, charts, and illustrations with clean lines and smooth shapes. A disadvantage is that most websites only recognize bitmapped images, so the images would require a conversion. Bitmapping advantages include great manipulation over textures, shading, and fine detail. The disadvantages are working with the pixels can be a hassle when working with shapes, magnification, printing, and a few others. 6) The two factors that limit the realism of bitmapped images are color depth and resolution. Color depth and resolution are related to storage in the computer because they can be portrait on the computer with a very high dots per inch and the image on the monitor can look great, but the resolution of the printer will come into play where the image may lack clarity or definition from what it looked like on the monitor. Storage comes into play because painting programs will allow you to store your image at a 300 DPI so that when printed they don't come out as undefined but this process demands more memory and disk space, but it is more worth it on the printed versions. 7) The main disadvantages of hypermedia are that they are not as personal as traditional books or videos. Hypermedia can leave out information and leave readers disoriented. Hypermedia is also highly fallible because readers can desire links and information that is not there. Hypermedia can have "lost" links in its documentation, because the web is not always certain. It is possible to scribble and leave marginal notes but it is not the same as highlighting, writing notes, and marking key passages as traditional in books. Lastly, it can be a little hard on humans to stare at computer screens for long periods of time, compared to staring at the pages of a book in a comfortable location and position.
10) Hypertext and hypermedia differ from linear media because it gives users the ability to connect to other sources of information quickly while in topic. Pictures, text, website links, online videos, sounds, animations, and music can all be combined to enhance the reading experience of the user, whereas in traditional media it is not as easy to combine the media in one place. Chap7 Review: 2) Record matching is used to gain information about us by establishing reputations. For example credit bureaus collect data about us and our financial honesty. This allows us to use credit cards around the world, and compete with different national banks for borrowing money because the more competition there is out there for our business is the lower rates and monthly payments can be. 3) The structure of a simple database is kind of like a filing system. In the metal file cabinet draw is a large set of manila folders those would be considered the tables. Inside of the manila folder (table) are records of customer's information. On the record of their information are different fields such as their name, address, phone number, it can be whatever. The simple database is a system of organization and details. 4) A query is simply when you request information from a database. Some examples of questions that can be answered in a query can be a specific search of a client named Jon, a select request to show all Jon clients in the New York state, or a request to match all clients that live in New York. 7) File manager and database-management system are different because file manager systems allow access to single files or single tables at a time. File manager systems are similar to database managers because they are the same, with the exception that database-manager systems allow access too many files and many tables at a time. File manager systems are the predecessor to the database-management systems. 8) The difference between searching and sorting data is that sorting data is what allows you to arrange the records by letters or numerically based on the information in on or more fields. Searching is a simple query to find information in the database. 10) Yes we do have rights to privacy. The U.S. Supreme court recognizes that there is a right to privacy implied in the constitutional guarantees. The Code of Fair Information Practices suggests that there be no secret government databases, that individuals be able to access and correct information about themselves kept in government databases, and that it be kept safe and reliable. There are other grounds in which our privacy is upheld such as the Family Education Rights and Privacy Act which allows students to access their educational records, the Video Privacy Protection Act which prohibits videotape service providers from disclosing rental records without consumer's written consent.