Podcast
Podcast
Podcast
Something went wrong
Questions and Answers
Questions and Answers
What is a key characteristic of a rollerball mouse?
What is a key characteristic of a rollerball mouse?
- It is shaped like a pencil eraser.
- It has a flat, touch-sensitive surface.
- It uses a captive ball like those found in arcade machines. (correct)
- It requires a gyroscope for operations.
Which type of touch screen operates with gloved fingers?
Which type of touch screen operates with gloved fingers?
- Optical touchscreen
- Capacitive touchscreen
- Resistive touchscreen (correct)
- Infrared touchscreen
Foot pedals are commonly utilized in which scenario?
Foot pedals are commonly utilized in which scenario?
- To navigate touch screens in medical applications.
- For controlling display brightness on monitors.
- To replace keyboard shortcuts in radiology transcription workflows. (correct)
- To input stylus-based commands in design software.
What distinguishes a gyromouse from a traditional mouse?
What distinguishes a gyromouse from a traditional mouse?
What is an advantage of capacitive touchscreens compared to resistive touchscreens?
What is an advantage of capacitive touchscreens compared to resistive touchscreens?
Which input device is designed to simplify tasks for those with limited hand movements?
Which input device is designed to simplify tasks for those with limited hand movements?
What is a typical feature of dictation microphones?
What is a typical feature of dictation microphones?
What is the primary use of display devices?
What is the primary use of display devices?
What is a primary consideration when adding or updating a dedicated server in a server room?
What is a primary consideration when adding or updating a dedicated server in a server room?
What is a common measure used to indicate the power of a virtual server?
What is a common measure used to indicate the power of a virtual server?
What is typically connected to both dedicated and virtual servers in a radiology setup?
What is typically connected to both dedicated and virtual servers in a radiology setup?
Which factor can affect the reliability of radiology services in an institution?
Which factor can affect the reliability of radiology services in an institution?
What type of cabling utilizes the flow of photons?
What type of cabling utilizes the flow of photons?
Which component is NOT generally associated with basic network infrastructure?
Which component is NOT generally associated with basic network infrastructure?
Which of the following best describes the key advantage of virtual servers over dedicated servers?
Which of the following best describes the key advantage of virtual servers over dedicated servers?
The flow of electrons in network cabling is associated with which type of cabling?
The flow of electrons in network cabling is associated with which type of cabling?
What is the primary function of the processor in a workstation?
What is the primary function of the processor in a workstation?
How does RAM function in a workstation?
How does RAM function in a workstation?
Which of the following best describes the purpose of a graphics card?
Which of the following best describes the purpose of a graphics card?
What types of devices are categorized under input devices?
What types of devices are categorized under input devices?
Which storage device is known for its faster data retrieval compared to traditional hard disk drives?
Which storage device is known for its faster data retrieval compared to traditional hard disk drives?
What role does a mouse serve in a workstation environment?
What role does a mouse serve in a workstation environment?
What characteristic differentiates dual purpose devices from standard input/output devices?
What characteristic differentiates dual purpose devices from standard input/output devices?
In what situation is larger amounts of RAM particularly necessary?
In what situation is larger amounts of RAM particularly necessary?
What is a pixel?
What is a pixel?
How is resolution defined in terms of displays?
How is resolution defined in terms of displays?
What does the dot pitch measurement indicate?
What does the dot pitch measurement indicate?
Which of the following monitor types does not belong to the major types used today?
Which of the following monitor types does not belong to the major types used today?
What interface is primarily used for connecting high-resolution monitors?
What interface is primarily used for connecting high-resolution monitors?
What does the matrix size of a monitor indicate?
What does the matrix size of a monitor indicate?
What does the refresh rate of a monitor refer to?
What does the refresh rate of a monitor refer to?
Which of the following is not a characteristic associated with pixels?
Which of the following is not a characteristic associated with pixels?
What is the primary reason that glass fiber-based networking is expected to replace copper connections for the final hop in networks?
What is the primary reason that glass fiber-based networking is expected to replace copper connections for the final hop in networks?
How are packets of data addressed in an IPV4 system?
How are packets of data addressed in an IPV4 system?
What major limitation does IPV4 face as more devices connect to the internet?
What major limitation does IPV4 face as more devices connect to the internet?
What type of addresses does IPV6 utilize to expand address availability?
What type of addresses does IPV6 utilize to expand address availability?
At which layer of the OSI model do routers operate?
At which layer of the OSI model do routers operate?
Which best describes the role of a router in a network?
Which best describes the role of a router in a network?
What is a common format for an IPV4 address?
What is a common format for an IPV4 address?
What is a consequence of using copper for the final hop in networking?
What is a consequence of using copper for the final hop in networking?
Questions and Answers
Something went wrong
Flashcards
Flashcards are hidden until you start studying
Flashcards
Something went wrong
Study Notes
Study Notes
Hardware Components
- Hardware can be categorized into two types: hardware and software
- Workstations/PCs are made up of a processor, memory, graphics card, and storage
- Commonly used input devices include: mouse, keyboard, foot pedals, dictation microphones, and touch screen monitors
- Commonly used output devices include: display devices, printers, speakers, and servers
Workstation/PCs
- The processor is the heart of the workstation and processes digital inputs, based on instructions received from the program running
- RAM is high-speed memory used for storing data in use
- The amount of available RAM impacts the number of programs, instructions, and user data that can be used and manipulated at the same time
- Graphics cards are secondary processors with dedicated memory, allowing for complex mathematical operations for modern applications.
- Storage offers a space to store data even when turned off, and can be in the form of a HDD (magnetic spinning disk) or an SSD (miniaturized internal device).
Input Devices
- Mice can be traditional, upright, 3D, projection, button, rollerball, or trackpad, each offering specific advantages and functionalities
- Keyboards can be customized with smart card readers and come in various styles including washable membrane or covers, particularly useful in clinical settings
- Foot pedals are often used in radiology transcription workflows and offer shortcuts, especially useful for users with limited hand movements
- Dictation microphones, such as the Philips SpeechMike, offer features like a built-in speaker, trackball, and customizable buttons for specific functions
- Touch screen monitors can be capacitive or resistive with different advantages depending on the intended use (resistive screens work with gloves)
Output Devices
- Display Devices are the primary output of a PC and can include multiple monitors
- High-quality monitors require dedicated graphics cards for optimal performance
- Common monitor types are: CRT, LCD, or Plasma Screen
- Important concepts for understanding computer monitors: pixel, resolution, matrix, dot pitch, and refresh rate
- A pixel is an individual controllable dot triad, composed of red, green, and blue dots.
- Higher resolution means more pixels in an image, resulting in a sharper and more detailed image
- Matrix is the arrangement of pixels in rows and columns, with its size determining the number of pixels
- Smaller dot pitch offers finer resolution as the dots in a pixel are closer
- The refresh rate is also known as the vertical scanning rate.
Servers
- Servers can be either dedicated or virtual
- Dedicated servers are standalone physical units (pizza box servers)
- Virtual servers can share physical hardware, reducing resource consumption.
- Updating a dedicated server may require adjustments to power, cooling, and network infrastructure
- Virtual servers are typically judged by the number of processor seats they hold.
- In radiology informatics, debates exist about the long-term benefits of using dedicated servers vs. virtual servers
- Servers are connected to storage arrays, UPS, and backup devices for data storage and protection.
Networks
- Network infrastructure plays a crucial role in the efficiency and reliability of radiology services
- Key components of a network infrastructure include: cabling, IP addresses, routers, switches, ports, VPNs, and bandwidth.
- Network cabling can be copper or glass fiber, with glass fiber offering higher speeds in theory
- IP addresses (IPV4 and IPV6) are used to identify and route data packets within a network
- Routers connect different networks and operate at the network layer of the OSI model
- Routers allow data packet broadcast within a LAN and routing to a WAN.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Study Notes
Something went wrong
