Introduction Flashcards
is the study of science, computing, and
engineering theories behind the technology that goes into
creating images, the integration of this technology into imaging
system, and the application of those systems to gather
information and solve scientific problems.
IMAGING SCIENCE
interdisciplinary science and includes computer
science, information science, decision science , management
science, cognitive science and organizational theory, all motivated
by the need for new solutions to enhance the quality and safety of
patient care.
INFORMATICS
is a process of passing information from one person to
another or from one place to another.
INFORMATICS
refers to any general-purpose-stored-program
electronic digital computer.
COMPUTER
refers to a continuously varying quantity; a digital system uses only
two values that vary discretely through coding.
ANALOG
used in many commercial and scientific
applications. Digital meters are easier to read and can be more precise.
analog and digital meters
system have provided for development of
Teleradiography
telecommunication
which is transfer of images and patient date
to remote locations for interpretation and filing.
teleradiography
has changed the way human resources are
allocated for this task.
teleradiography
The earliest calculating
tool, the __________ was
invented thousand of
years ago in China and is
still used in some parts of
Asia.
abacus
In 17th century,______________ built mechanical
calculators using pegged wheels
that could performed the four
basic arithmetic functions of add,
minus, times and divide.
Blaise Pascal and
Gottfried Leibniz
In 1842, _____________ designed an analytical engine that
perform general calculations automatically.
Charles Babbage
designed a tabulating machine to record
census data in 1890.
Herman Hollerith
Hollerith’s company grew to become ________________ is an American multinational information
technology company headquartered. The company produces and
sells computer hardware, middleware and software, and provides
hosting and consulting services in areas ranging from mainframe
computers to nanotechnology.
IBM (International Business
Machines Corporation)
In 1939, ________&________ designed and built the first
electronic digital computer
John Atansoff and Clifford
Berry
In December 1943, the British built
the first fully operational working
computer, called _________.
Colossus
which was designed to crack
encrypted German military codes.
Colossus
The first general-purpose modern
computer was developed in 1944 at
Harvard University. Originally called
the _______________ it is now known
simply as Mark I. It was an
electromechanical device that was
exceedingly slow and was prone to
malfunction.
Automatic Sequence Controlled
Calculator (ASCC)
The first general-purpose electronic
computer was developed in 1946 at
the University of Pennsylvania by ___________.
J.
Presper Eckert and John Mauchly.
This computer, called ENIAC
_____________ contained more than
_______ vacuum tubes that failed at
an average rate of one every 7
minutes.
ENIAC
(Electronic Numerical Integrator and
Calculator)
18,000
In 1948, scientist led by _________ at the Bell Telephone Laboratories developed the transistor.
William Shockley
an electronic switch that alternately allows or does not allow electronic signal to
pass. It made possible the development of “stored program’’
computer and thus the continuing explosion in computer science.
Transistor
The transistor allowed _________ of the Sperry-
Rand Corporation to develop
________ which appeared in
1951 as the first commercially
successful general purpose,
stored program electronic
digital computer
Eckert
and Mauchly
UNIVAC (Universal Automatic
Computer)
allowed Eckert and Mauchly of the Sperry-Rand
Corporation to develop UNIVAC ( Universal Automatic
Computer),
which appeared in 1951 as the first commercially
successful general-purpose, stored program electronic digital
computer.
Transistor
incorporates more than 1
million transistors on a
chip of silicon that measures less than 1 cm on a side
Celeron microprocessor
Computers have undergone _________ of development
distinguised by the technology of their electronic devices
FOUR GENERATION
computers were vacuum tube devices (1939-1958)
First Generation
computers, which became generally available in
about 1958, were based on individually packaged transistors
Second generation