Social Implications Of Hardware Flashcards
List the advantage and disadvantage of On-screen or virtual keyboards
Can be operated with a variety of input devices (such as a head mouse or eye mouse).
They can be very slow to use, especially when a user is learning to use their head or eye mouse.
List the advantage and disadvantage of Braille keyboards
Braille keyboards are relatively easy to learn. They can also adjust to updated technology.
Sighted users may not be able to use them unless they know Braille.
List the advantage and disadvantage of Head-mounted pointers
Users who cannot use their hands or feet, or who do not have the fine motor skills needed to operate joysticks or mice, may find using a head-mounted pointer easier.
They can be very difficult to learn how to use and the head-mounting gear may restrict a user’s
movement further
List the advantage and disadvantage of Gesture recognition devices
Users an control the device using gestures, making them easier to use than other pointing devices.
Users with Parkinson’s disease, cerebral palsy or other diseases affecting muscle control may not be
able to use the device effectively.
List the advantage and disadvantage of Sip and puff devices
Sip-and-puff devices give severely disabled users the chance to interact with computing devices and
allow them to communicate via those devices.
Sip-and-puff devices need to be calibrated to each user and the user must have decent breath and oral motor control to use the device
Define ergonomics
Ergonomics is the study of how to arrange furniture and equipment in a way that will make people more comfortable and efficient in their work.
List two ways how you can keep your hardware clean and hygienic
Clean your smartphone every day with a disinfectant wipe, making sure that you get into all the nooks and crannies without damaging the device.
Avoid eating at your desk, as food crumbs can get stuck under your keyboard keys.
ways that you can reduce the amount of strain on your body
Make sure that your desk, chair and screen are all at a comfortable height.
Sit properly and do not slouch or hunch your shoulders. This could cause backache and neck pain.
Stand up and move around at least once an hour. Try using a standing desk (if possible) for some of the
time you are working
ways to protect your hardware devices from damage?
Always use a screen protector and case for smartphones and tablets.
This will protect them if they fall and will stop the screen from cracking.
Avoid spilling liquids on the keyboard and mouse. At best, liquid will cause the keys or buttons to stick
and at worst, the device will stop working completely.
ways that you can protect your hardware from theft
Use locking cables attached to walls or hard-to-move desks to lock items such as monitors into place.
Invest in lockable docking stations for laptops. These docks lock as soon as you click a laptop into place,
keeping your laptop safe from theft
Sticky keys
Allows users to use common keyboard shortcuts without needing to hold down all the keys at the same time
How to turn on sticky keys
Press the shift key five times
Go to settings and click on Ease of Access. Then scroll down to the keyboard settings and tick or untick the sticky keys
Health issues due to input and output devices
•RSI(repetitive strain injury)
•Eye strain
•Carpal tunnel syndrome
Explain how you would protect your device from power failure
You can protect a device from power failure by having an UPS connected to a desktop computer or server. You can also get rechargeable battery packs for smartphones, tablets and laptops.
Describe a UPS
Uninterruptible power supplies are plugged directly into the main power supply to charge their batteries and will immediately start providing power to the computers connected to them in the case of
a power failure.
Explain how you would protect your device from power failure.
You can protect a device from power failure by having an UPS connected to a desktop computer or server. You can also get rechargeable battery packs for smartphones, tablets and laptops
What are two ways to reduce power consumption on devices?
Adjust the screen brightness to a comfortable level.
Purchase devices with an Energy Star rating.
Why is it important to lower screen brightness?
It can save power and reduce the strain on your eyes
