Lesson 11: Using Device Interfaces Flashcards
(24 cards)
What type of mouse would you recommend for someone who uses a computer mostly for handwriting or drawing?
Stylus
What is a mechanical mouse and one con that it has?
traditional mouse with rollerball inside. Prone to issues because dirt build up on roller pad.
What is an optical mouse?
Uses LEDS to detect movement
What is a laser mouse?
Uses infrared laser gives greater precision than optical mouse
What is bandwith?
The total amount of data that can theoretically be transferred on the bus in a given unit of time
What is another word for bandwith?
Throughput
What does USB stand for?
Universal serial bus
Her user has two USB drivers connected to her PC. She complains that when she copies large possible drives at the same time, it takes longer why?
Bandwidth on the USB is shared between all devices.
What is a partition?
Apart of a disk drive, that is separate from the rest of the drive.
When your friend presses the key marked @, the “ symbol appears. What’s the cause?
The keyboard is set to UK layout.
How do you switch the keyboard layout?
Language bar
True or False: there are USB cables with normal size connectors on one end, and micro device connectors on the other.
True ( think apple charger)
True or False: The connectors for the host (PC) and device use different form factors ( usb type-a,b, c are form factors)
True
True or False: Reversible type C connectors exist
True
True or False: USB cables cannot be used for both data transfer and power delivery
False
How do ethernet ports connect to computers?
Network interface card
What is a PS/2 port
Connected older mice and keyboards to computers by round connectors and pins. Purple for keyboards and green for mice.
Does VGA support high definition digital picture resolution?
No
What do the display interfaces HDMI,Thunderbolt,and DVI have in common?
They support high definition picture
What picture resolution supports widescreen movies? And what’s the aspect ratio?
1920 x 1080 which has aspect ration 16:9
What is plug and play?
When an input device (like USB) can be inserted, immediately detected without restarting the computer
What is thunderbolt 3
USB Type-C connects to digital displays OR external storage
What does RJ- 45 connect (radio jack 45)
Connects Ethernet via a twisted pair cable?
What does VGA connect?
Analog displays like CRT displays
