Introduction Flashcards

(72 cards)

1
Q

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.

A

IMAGING SCIENCE

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2
Q

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.

A

INFORMATICS

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3
Q

is a process of passing information from one person to
another or from one place to another.

A

INFORMATICS

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4
Q

refers to any general-purpose-stored-program
electronic digital computer.

A

COMPUTER

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5
Q

refers to a continuously varying quantity; a digital system uses only
two values that vary discretely through coding.

A

ANALOG

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6
Q

used in many commercial and scientific
applications. Digital meters are easier to read and can be more precise.

A

analog and digital meters

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7
Q

system have provided for development of
Teleradiography

A

telecommunication

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8
Q

which is transfer of images and patient date
to remote locations for interpretation and filing.

A

teleradiography

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9
Q

has changed the way human resources are
allocated for this task.

A

teleradiography

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10
Q

The earliest calculating
tool, the __________ was
invented thousand of
years ago in China and is
still used in some parts of
Asia.

A

abacus

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11
Q

In 17th century,______________ built mechanical
calculators using pegged wheels
that could performed the four
basic arithmetic functions of add,
minus, times and divide.

A

Blaise Pascal and
Gottfried Leibniz

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12
Q

In 1842, _____________ designed an analytical engine that
perform general calculations automatically.

A

Charles Babbage

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13
Q

designed a tabulating machine to record
census data in 1890.

A

Herman Hollerith

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14
Q

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.

A

IBM (International Business
Machines Corporation)

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15
Q

In 1939, ________&________ designed and built the first
electronic digital computer

A

John Atansoff and Clifford
Berry

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16
Q

In December 1943, the British built
the first fully operational working
computer, called _________.

A

Colossus

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17
Q

which was designed to crack
encrypted German military codes.

A

Colossus

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18
Q

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.

A

Automatic Sequence Controlled
Calculator (ASCC)

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19
Q

The first general-purpose electronic
computer was developed in 1946 at
the University of Pennsylvania by ___________.

A

J.
Presper Eckert and John Mauchly.

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20
Q

This computer, called ENIAC
_____________ contained more than
_______ vacuum tubes that failed at
an average rate of one every 7
minutes.

A

ENIAC
(Electronic Numerical Integrator and
Calculator)

18,000

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21
Q

In 1948, scientist led by _________ at the Bell Telephone Laboratories developed the transistor.

A

William Shockley

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22
Q

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.

A

Transistor

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23
Q

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

A

Eckert
and Mauchly

UNIVAC (Universal Automatic
Computer)

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24
Q

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.

A

Transistor

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25
incorporates more than 1 million transistors on a chip of silicon that measures less than 1 cm on a side
Celeron microprocessor
26
Computers have undergone _________ of development distinguised by the technology of their electronic devices
FOUR GENERATION
27
computers were vacuum tube devices (1939-1958)
First Generation
28
computers, which became generally available in about 1958, were based on individually packaged transistors
Second generation
29
computers used integrated circuits (IC’s), which consist of many transistors and other electronic elements fused onto a chip
Third Generation
30
tiny piece of semiconductor material, usually silicon. These were introduced in 1964
chip
31
The microprocessor was developed in
1971 by Ted Hoff of Intel Corporation.
32
The ____________ of computers, which first appeared in1975 was an extension of the third generation and incorporated large-scale integration (LSI); this has now been replaced by very large- scale integration ( VSLI), which places millions of circuit elements on a chip that measures less than 1 cm.
Fourth Generation
33
The _________ is everything about the computer that is visible -- the physical components of the system that include the various input and output devices. • Input Processing • memory • storage • output • and communications
Hardware
34
All computer languages translate what the user inputs into a series of ________ that the computer can understand.
1s and 0s
35
Although the computer can accept and report alphabetic characters and numeric information in the decimal system, it operates in the _________. In the decimal system, the system we normally use, 10 digits (0-9) are used.
binary system.
36
comes from the Latin word for "finger" or "toe".
Digit
37
The _______ in a computer is the primary Unit element that allows the computer to manipulate and carry out software instructions.
central processing unit (cpu)
38
In microcomputer, this is often referred to as the
Microprocessor
39
The ______ is designed for large, high performance, multiuser or multitasking system. A computer's processor (CPU) consist of a control unit and an Arithmetic/Logic Unit ( ALU)
Pentium processor
40
These two computers and all other components are connected by an electrical conductor called a
bus
41
speeds usually are defined in megahertz (MHz), where 1 MHz equals to 1 million cycles per second. Today's microprocessor commonly run at up to several gigahertz. 1 GHz = 1000 MHz
Microcomputer processing
42
Computer memory is distinguised from storage by it's function. Whereas ____ is more active, _______ is more archival.
memory storage
43
referred to as memory, primary storage, internal memory, or Random Access Memory R.A.M/ RAM
Active Storage
44
means data can be stored or accessed at random from anywhere in main memory in approximately equal amounts of time regardless of where data is located.
random access
45
types of ram
DRAM (dynamic) StaticRam
46
chips are more widely use,
DRAM
47
chips are faster. _____ retains its memory even if power to the computer is lost but it is more expensive than DRAM and requires more space and power.
SRAM
48
the working storage of a computer
Main memory
49
contains information supplied by the manufacturers, called firmware that cannot be written on or erased. Three variation or ROM chips are used in special situations: PROM, EPROM and EEPROM
Read only memory (ROM)
50
Chips are blank chips that a user, with special equipment can write programs to. After the program is written, it cannot be erased.
PROM/programmable read-only memory
51
Chips are similar to PROM chips except that the contents are erasable with the use of a special device that express the chip to ultraviolet light.
EPROM/erasable programmable read-only memory
52
Can be reprogrammed with the use of special electronic impulses
EEPROM/electronically erasable programmable read-only memory
53
is the main circuit board in a system unit. This board contains microprocessor, or any co-processor chips, RAM chips, ROM chips, other types of memory.
motherboard or system board
54
All data processed by a computer pass through main memory. The most effecient computers therefore, have enough main memory to store all data and programs needed for processing. Usually, secondary memory is required in the form of CDs, Dvds, HDDs and SSDs. Secondary memory functions similarly to a filing cabinet-you store information there until you need to retrieve it.
motherboard
55
used to refer to a collection of data or information that is treated as a unit by the computer. Common files are program files such as data files, image files, audio files and video files
word file
56
is an archival form of memory.
storage
57
A kilobyte/kb is A megabyte/mb is A gigabyte/gb is A terabyte/tb is
1024 bytes million of bytes 1 billion of bytes 1024 gigabytes
58
stores data and programs as tiny indentions or pits on a disc- shaped, flat piec of Mylar plastic.
CD/ COMPACT DISC
59
-operate in the same manner as CDs but offer higher capacity.
DVDs and Blu-ray DISC
60
are thin, rigid glass or metal platters. Each side of the platter is coated with a recording material that can bemagnitized. HDD are tightly sealed in a hard disc drive, and data can be recorded on both sides of the disc platters. It is typically located inside the computer but can also be attached externally.
HARD DISC DRIVES/HDDs
61
These drives are typically of a lower capacity that HDDs and more expensive. However, they store data based on solid state principles and therefore allow for much faster access to data and are more durable than traditional HDDs.
Solid-state drive/ SSD
62
system consists of two or more-disc drives in a single cabinet that collectively act as a single storage system. RAID systems have greater reliability because if one-disc drive fail, other can take over.
REDUNDANT ARRAY OF INDEPENDENT DISC/ RAID
63
consists of devices that translate computer information into a form that humans can understand.
output hardware
64
are thinner and lighter and consume less power than CRTs. These displays are made of two plates of glass with a substance between them that can be activiated in different ways. Flat panel displays are most prevalent form of display in radiology departments todays.
Flat panel displays/ liquid crystal displays/LCD
65
Are another form of output device and are categorized by the manner in which the print mechanism physically contacts the paper to print an image.
Printers
66
operates similarly to a photocopying machine. Images are created with dots on a drum, are treated with a magnetically charged ink like substance called toner., and then then are transferred from drum to paper. Laser printer used for medical imaging
laser printers
67
Also form images with little dots. These printers electrically charge small drops of ink that are then quieter and less expensive and can also print in color
inkjet printers
68
includes standard typewriter keys that are used to enter words and numbers and function keys that enter specific command.
keyboard
69
Translate images of text, drawings, or photographs into a digital format recognizable by the computer.
scanners
70
Translate analog sound into digital format. Similalrly, video images, such as those from a camcorder, are digitized by a special video that can be installed in a computer.
Audio input device
71
collects data directly from the environment and transmit them to a computer. Sensors are use to detect things such as wind speed or temperature.
sensors
72
detect specific movements and characteristics of the human body. Security systems that identify a person through a finger print or a retinal vascular pattern are example of these.
Human biology input devices