MIDTERM REVIEW

Binary Thing

Analog vs Digital

       analog - smooth, infinitely precise, accuracy problems
       digital - much better accuracy, limited precision  NOT infinitely precise

Encoding data - binary/1&0's

Binary conversion problems --  1101 base 2  = 13 base 10

Octal conversion - 13 base 10 =  15  base 8	      break into groups of 3 (4,2,1)

Hexadecimal conversion	- 				   break into groups of 4 (8,4,2,1)

STAIR -  start algorithm before you start programming
      which problem is the easiest to mess up
      implementation is the easiest to do

Software Engineering -  "make your projects more likely to success"
		     waterfall model 
			       charter
				  contract/functional specification
						      personnel requirements, equipment requirements, both sides
					prototype, storybooks, mock-ups, etc.
					    groups, interfaces, interdependency of groups
					       testing - alpha (trusted clients)/beta (real world testing)
  					          documentation - very important, customer support, marketing, packaging,etc.
					distribution phase - get feedback, fix bugs (patches)
					archive plan, ongoing customer support

SMIL/XML -  Specialized Mark-up languages

XML - used for building Mark-Up Language (Constructor Kit) with ability to customize the mark-up language (math, chemistry)

    case sensitive, single shot tags (end with slash character)

SMIL - multimedia integration language; sound, video, graphic
     RealText, RealPix
	       two main parts - head (meta data, layout of regions) & body (source/media element information)

			sequential vs parallel placement of elements

use of images, sound & text
    images - 

	   text - real text (markup language) allows you to place & manipulate behavior of text

	       sound - sound file doesn't need a region
		     wave files; folding, spindling, manipulating

		     amplitude - deep (how big wave is)
		     frequency - wide (spread of wave)
		     sampling - analog sound & digitally sampling
			      sampled files tend to be huge!

			      midi - stores instructions for how to playback file
			      compression algorithms - lossy (will lose data in compression)
					  compression/decompression algorithms

Streaming Audio - buffered audio -- input must be the same as the output (through put)
	  Multistreamed - (in real audio) -- auto detects bandwidth & allows multiple bandwidth output