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Lab 8.1 Exercises

8.1.1. Understand Hardware Support for Images

a) Discuss the strengths and weaknesses of the various methods of getting images into your computer and onto the hard disk.

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A1:

Answer: Scanners have the advantage of a wide range of features and therefore prices. In addition, many software products allow you to scan the image directly into the application without having to save it on the disk. This saves a great deal of time as well as prevents problems caused by converting from one format to another. Even without this ability, the software provided with the scanner typically supports multiple formats. Another key advantage is when you have existing images that you want to scan. A scanner is the only way to get them into the machine efficiently (if at all).

In addition to the range of prices and features, digital cameras have the advantage of being portable, allowing you to capture images as they happen. In other words, digital cameras allow you to capture “non-scannable” content. The biggest disadvantage is the storage limitation you have. Most vendors provide storage packs that can hold a large number of images (or course, depending on the resolution). Some vendors have addressed this problem by using standard 3.5" disks as their storage media, meaning you don't have to spend a fortune on their storage packs.

8.1.2. Understand Hardware Support for Video

Visit the IEEE site as well as the Apple page on the IEEE-1394 standard at the following URLs:


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