Keyboard, Mouse, Scanner, Graphics tablet, Bar code reader, bio metric devices
1 of 10
what is a health hazard of using a keyboard?
1) repetitive strain injury RSI - to overcome this ergonomic keyboards have been developed
2 of 10
Name 2 advantages of using a mouse
1) Ideal for use with desktop computers 2) most computer users are familiar with them, requires little training
3 of 10
Name 2 disadvantages of using a mouse
1) over use can lead to RSI 2) the rollers in the mice can become clogged and wont work accurately until fixed
4 of 10
What is a graphics tablet used for?
1) a designer can create much more accurate drawings on screen than what they could with a mouse 2) when combined with an art application such as Photoshop the artist can create incredible illustrations
5 of 10
What is a scanner used for?
1) scanners can be used to convert images or text on paper into a digital format
6 of 10
How does a scanner work?
1) a scanner works by shining a beam of light onto the surface of the object that needs to be scanned
7 of 10
How could you store a scan?
1) in picture format e.g (png)
8 of 10
What is a bar code reader?
1) input device used to scan or read the bar code with a visible red light
9 of 10
Name 2 common uses of bio-metric authentication methods
1) Modern UK passport 2) at ATM's
10 of 10
Other cards in this set
Card 2
Front
what is a health hazard of using a keyboard?
Back
1) repetitive strain injury RSI - to overcome this ergonomic keyboards have been developed
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