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Digital: Introduction to Digital
Digital: Introduction to Digital
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Introduction to Digital Radiography
Flashcards
32 cards
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Practice quiz
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Questions
32
Answers
1
Which of the following is an application program?
BASIC
Windows
JAVA
Word
2
The VLSI that is a 1 cm device that has millions of circuit elements on it is a:
computer
punch card
chip
transistor
3
The functional component of a computer involved with feeding information into the CPU is the:
input device
optical printer
output device
operating system
4
The first general-purpose electronic computer was the:
transistor
abacus
UNIVAC
ENIAC
5
The system for textual information that contains patient information, billing records, and inpatient orders is the:
RIS
PACS
HIS
EMR
6
A comprehensive set of activities desired to monitor and maintain a piece of equipment is:
quality control
quality assurance
quality excellence
continuous quality improvement
7
The invisible portions of a computer consist of languages and programs are:
hardware
digital
analog
software
8
What is any general-purpose, stored-program electronic digital device?
processor
computer
transistor
punch card
9
Which of the following is NOT part of the CPU?
ALU
control unit
IHE
memory unit
10
A 2,000 x 2,500 matrix has:
2,500 pixels
50,000 pixels
5,000 pixels
5,000,000 pixels
11
Which curve represents a wide exposure latitude?
B
A
12
Radiologists can remotely read exam results and write reports with:
DICOM
HIS and RIS
teleradiology
computer aided diagnosis
13
The earliest calculating tool is the:
UNIVAC
abacus
ENIAC
transistor
14
Permanent instructions (programs) that cannot be modified are stored by:
DICOM
RAM
ROM
CMOS
15
Discrete information a.k.a numbers used by a computer is:
analog
hardware
software
digital
16
Which of the following is an example of computer output device?
optical scanner
keyboard
light pen
printer
17
What refers to a continuously varying quantity?
hardware
digital
analog
software
18
1 Word =
2 bytes
8 bits
1 byte
2 bits
19
The binary number system has:
10 digits
8 digits
2 digits
1 digit
20
Which of the following has the greatest spatial resolution?
direct digital detectors
computed radiography
film-screen radiography
indirect digital detectors
21
Which of the following is not a limitation of film-screen radiography?
possible poor image quality
density and contrast are fixed
archiving
low spatial resolution
22
What tells the computer how to carry out software instruc. & directs hardware to perform tasks?
CPU
ALU
control unit
memory unit
23
A PACS system is defined as:
digital method of recording images
satellite transmission network for analog images
computer assisted file and storage system for digital images
light attenuated method of image production
24
An electronic switch that alternately allows or does not allow electronic signals to pass is a:
computer
punch card
chip
transistor
25
2 or more disc drives in a single cabinet that collectively act as a single storage system is:
RAID
Blue-ray
HL-7
multidic drive
26
Which of the following is NOT an advantage of CR over film-screen radiography?
higher DQE
increased contrast resolution
increased spatial resolution
wider exposure latitude
27
Which curve represents high contrast?
B
A
28
A computer program that organizes the course of data to solve a particular problem is:
central processing unit
programming language
operating system
application program
29
If an IP has a high probability of interacting with the x-ray beam, then it has a high:
EI
VOI
SNR
DQE
30
PACS is an acronym for:
Physician Applications and Communication Systems
Processing, Archiving, and Computer Storage
Picture Archiving and Communication Systems
Processing, Applications, and Computer Storage
31
Electrical data transmission over conventional phone lines from computer to computer is a:
transform
histogram
algorithm
modem
32
The first commercially successful general-purpose, stored program electronic digital computer is:
transistor
ENIAC
UNIVAC
punch cards
