4 - foundation the computer Flashcards
it is comprises various elements, each of which affects the user of the system
computer system
____ _____ for interactive use, allowing text entry, drawing and selection from the screen
input devices
example of text entry
traditional keyboard,
phone text entry, speech and
handwriting
example of pointing
principally the mouse, but
also touchpad, stylus and others
6 standard input devices
- Keyboard Devices
- Point and Draw Devices
- Digitizer
- Data Scanning Devices
- Microphone
- Electronic cards Readers
display visual information
output devices
4 standard output devices
monitor screen,printer, plotters, projectors
is the ability of
a computer to receive and interpret intelligible handwritten
input from sources such as paper documents, photographs,
touch-screens and other devices.
handwriting recognition
limitation on speed on handwriting recognition
difficult to write at more than 25 words a minute
The field of automated handwriting recognition has achieved
significant real world success in targeted applications such as:
▪ address recognition on mail-pieces for sorting automation;
▪ reading of courtesy and;
▪ legal amounts on bank checks.
considered to be one of the most complex areas of computer science involving linguistics, mathematics and statistics
speech recognition
speech recognition commonly focused with
translation of speech from a verbal format to a text
number of factors can impact ____ ____ ____ , such as
pronunciation, accent, pitch, volume, and background
noise.
WER ( word error rate)
5 most commonly used methods in speech recognition
NLP, HMM, N-Grams, neutral networks, Speaker diarization
are of artificial intelligence which focuses on the interaction between humans and machines through language through speech and text
natural language processing (NLP)
utilized as sequence models within speech recognition, assigning label to each unit - i.e. words,syllables, sentences, etc. in the sequences
hidden markov models (HMM)
the simplest type of language model (LM), which assign probabilities to sentences of phrases
N - grams
process training data by mimicking the interconnectivity of the human brain through layers of nodes
neutral networks
algorithm identify and segment speech by speaker identity
speaker diarization (SD)
VUI stands for
voice recognition interface
allowing users to interact with technology through conversational interfaces, which are now integrated into homes, cars and public spaces
smart assistant and voice activated system
the vast majority of interactive computer system would be unthinkable without some sort of ____ ____
display screen
7 types of electronic display
cathode ray tube (CRT), color crt monitor, liquid crystal display (LCD), light emitting diode(LED), direct view storage tubes(DVST), plasma display, 3D display
