Theory Flashcards
What to do to stop computer eye strain?
‘Gaze’ breaks looking at distant objects
Adjust screen for contrast/brightness
Playing games excessively can lead to…?
Grades could slip
No Hobbies
Isolated
Mentally, playing games could lead to?
Aggression
Decreased Empathy
Emotional Control (as show in 10hrs/week shooting game study)
What does a set top box do?
Transforms digital telivision signals so they can be used by the TV
Allows pausing of tv, gives broadband connection
What is a FireWire Cable?
Firewire is most often used to connect digital camcorders, external hard drives, and other devices that can benefit from the high transfer rates (up to 480 Mbps) supported by the Firewire connection.
Dangers of a Sat Nav?
May cause blind spot
May cause distractions
How can a sat nav benefit other than navigation
Can check drivers speed
Can check driving conditions
How can a sat nav benefit disabled people? (2)
Shows disabled parking areas
Gives voice control
Adv. Of Phone vs. Sat Nav?
Generally lighter/smaller
More likely to have on person
why plug in ethernet cable?
Gives higher bandwidth bata transfer than wifi
How to improve WiFi security? (3)
Stop router broadcasting Service Set Identity
Set up MAC filtering and specify which devices can connect
Set up encryption/WPA
What is WPA
it encrypts messages sent over a wireless network so they cant be read if you dont have encryption key
What is a processor and what is internal memory?
A processor controls all functions of the device
Internal Memory is where processor information is stored
Three benefits of flash memory
Doesn’t lose data when turned off
No moving parts, not easily damaged
Transfer data between devices
Two input devices that might be used with a games console?
Microphone
Webcam
What is wifi?
A method of wireless communication using radio waves
communicates over longer distances than bluetooth
What is convergence?
When devices become more multi-functional such that they can do the job of several other devices
How to improve mobile phone security? (3)
Set a PIN/password
Record unique IMEI number - mobile phone provider can block phone using this
Lock SIM card
Three ways of responsible mobile phone use?
Dont use it while driving
Don’t cyberbully
Dont overuse - RSI
How would a GPS reciever be used in a camera? why is this useful?
Can store co-ordinates in the metadata of the picture, showing where it was taken
Can be attached to map or viewed for refrence
Advantages of personal camcorders (2)
Cheap, better spec than most smartphones
Three key features of media players?
Small, light
Solid state memory so playback isnt affected by movemt
Holds a large amount of media
Two types of ways to store audio on media player, 3 ways images, 2 ways video
MP3 and WMA
JPEG, Gif and PNG
MPEG-4 and WMV
Three security features of personal media player?
locks automatically
can set password
encrypts data