9 what is jpeg encoding what is mpeg encoding

9. What is JPEG encoding? What is MPEG encoding?

10. Why does a video controller have its own processor and memory? 11. How does a laser printer s operation differ from that of a dot matrix printer? 12. Describe the types of optical input devices. For what type of input is each device intended? 13. Describe the process of automated speech recognition. What types of interpretation errors are
inherent to this process?

phrases. Recognizing phonemes requires matching digital sound patterns
against a database of known phonemes, which is difficult to do in real
time with current hardware. It's also complicated by the continuous nature
of human speech and differences in the characteristics of voiced
phonemes resulting from physical, geographic, and situational differences
in people. Recognizing words and phrases also requires matching groups
of related phonemes against a database of known words, which is also
difficult to do in real time with current hardware. In addition, a computer
must determine where one phoneme ends and another begins as well as
where one word ends and another begins. Performing these tasks requires
complex software and powerful CPUs.