COMPTIA A+ core 1 Professor Messer-
|QUESTIONS AND CORRECT ANSWERS (VERIFIED
AND WELL DETAILED ANSWERS) LATEST UPDATE
2024/2025
Wireless card/Bluetooth module - ✔✔Component, also called a NIC, that allows a
device to receive and transmit 802.11 (Wifi, 2.4GHz or 5GHz, or Bluetooth, 2.4GHz)
WLAN (Wireless Local Area Network) - ✔✔A self-contained network of two or more
computers connected using a wireless connection.
Mini PCI and PCI Express Mini Card - ✔✔• PCI and PCI Express for laptops
• Adapter cards are internal to the device
WPAN (Wireless Personal Area Network) - ✔✔Include short-range wireless
technologies such as BlueTooth and ZigBee
WWAN (Wireless Wide Area Network) - ✔✔Uses the wireless network technology to
allow users to check email, surf the web, and connect to corporate resources accessible
within the cellular network boundaries.
video card (video adapter) - ✔✔-Build into processor- cannot be upgraded
-some laptops have ability to upgrade video cards
LCD (liquid crystal display) - ✔✔High resolution, light, very fragile.
-cannot change resolution
Use native resolution
, DC jack on the laptop - ✔✔-Specific to the power supply type
Laptop power - AC adapters - ✔✔• Auto-switching or fixed input
• Converts AC to DC
• Input voltage - 110 volts / 220 volts
• DC jack on the laptop
• Specific to the power supply type
Laptop power - batteries - ✔✔• Lithium Ion (Li-ion)
• Common in consumer electronics
• No "memory effect"
• Charging the battery diminishes capacity
touchpad (trackpad) - ✔✔A small flat-panel pointing device that is sensitive to light
pressure.
The user moves the pointer by dragging a finger across the pad.
Laptop Frame - Plastic - ✔✔-lightweight, mobile
-Durable, difficult to break
-Inexpensive, cost-effective
Laptop Frame - Metal - ✔✔-more durable than plastic
-can be more difficult to repair
|QUESTIONS AND CORRECT ANSWERS (VERIFIED
AND WELL DETAILED ANSWERS) LATEST UPDATE
2024/2025
Wireless card/Bluetooth module - ✔✔Component, also called a NIC, that allows a
device to receive and transmit 802.11 (Wifi, 2.4GHz or 5GHz, or Bluetooth, 2.4GHz)
WLAN (Wireless Local Area Network) - ✔✔A self-contained network of two or more
computers connected using a wireless connection.
Mini PCI and PCI Express Mini Card - ✔✔• PCI and PCI Express for laptops
• Adapter cards are internal to the device
WPAN (Wireless Personal Area Network) - ✔✔Include short-range wireless
technologies such as BlueTooth and ZigBee
WWAN (Wireless Wide Area Network) - ✔✔Uses the wireless network technology to
allow users to check email, surf the web, and connect to corporate resources accessible
within the cellular network boundaries.
video card (video adapter) - ✔✔-Build into processor- cannot be upgraded
-some laptops have ability to upgrade video cards
LCD (liquid crystal display) - ✔✔High resolution, light, very fragile.
-cannot change resolution
Use native resolution
, DC jack on the laptop - ✔✔-Specific to the power supply type
Laptop power - AC adapters - ✔✔• Auto-switching or fixed input
• Converts AC to DC
• Input voltage - 110 volts / 220 volts
• DC jack on the laptop
• Specific to the power supply type
Laptop power - batteries - ✔✔• Lithium Ion (Li-ion)
• Common in consumer electronics
• No "memory effect"
• Charging the battery diminishes capacity
touchpad (trackpad) - ✔✔A small flat-panel pointing device that is sensitive to light
pressure.
The user moves the pointer by dragging a finger across the pad.
Laptop Frame - Plastic - ✔✔-lightweight, mobile
-Durable, difficult to break
-Inexpensive, cost-effective
Laptop Frame - Metal - ✔✔-more durable than plastic
-can be more difficult to repair
