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Flashcards

Module 1

Chantelle Knight CompTIA A+ Learning Technology Specialist Inglês 29 flashcards

Flashcards do conjunto (29)

  1. 1Which display technology does not require additional background lightingOLED(ORGANIC LIGHT EMITTING DIODE)
  2. 2A physical laptop memory chip usually comes in which format?SODIMM(SMALL OUTLINE DUAL IN-LINE MEMORY MODULE)
  3. 3CD, CD-R, AND CD-RW are example object that would be used with which input device?OPTICAL DRIVE
  4. 4What device is considered both an input and output device?TOUCH SCREEN
  5. 5Which type of operation is usually performed by a digitizer?CONVERTING FREE-DRAWN IMAGES ON A SCREEN TO ONES AND ZEROS
  6. 6Which Wi-Fi standards can be accessed using a mini PCI wireless adapter?802.11g & 802,11b
  7. 7Which video interface can carry both video and audio information?HDMI(HIGH DEFINITION MULTIMEDIA INTERFACE)
  8. 8The Wi-Fi antenna of a laptop computer should ideally be placed where?THE UPPERMOST PORTION OF THE LID/DISPLAY PART
  9. 9Which performance feature of a webcam is responsible for producing smoother motion in a video?FRAMES PER SECOND
  10. 10A Cold Cathode Fluorescent Light (CCFL) along with an inverter result in which condition for an LCD display compared to an LED display?IT WILL BE HEAVIER
  11. 11Define HDD, Name the 3 main components and 3 Benefits.HARD DISK DRIVE/MAGNETIC HARD DISKS ARE COMMONLY USED AS PRIMARY STORAGE IN DESKTOP COMPUTERS. 3 MAIN COMPONENTS ARE CONTROLLER(controls operations of drive and how data is encoded on the platters), HARD DISK, HOST BUS ADAPTER(HBA) (a translater converting signals from a computer into electrical signals that can be written onto the disk and vice versa). 3 BENEFITS BEING MATURE(been around for a long time, hence), RELIABLE, RELATIVELY INEXPENSIVE
  12. 12Define RAM?RANDOM-ACCESS MEMORY/SYSTEM MEMORY IS A FORM OF TEMPORARY STORAGE THAT IS FAST ACCESS AND VOLATILE(needs the power to retain info) FOR WHEN THE PROCESSOR NEEDS IT
  13. 137 Anatomy of a hard drive?PLATTER, SPINDLE, HEAD, ARM, ACTUATOR AXIS, CONNECTIONS, ACTUATOR
  14. 14Define the memory chip in a laptop? How many Pins can DIMM have?REFERRED TO AS SODIMM(SMALL OUTLINE DUAL IN-LINE MEMORY MODULE. IT IS A SMALLER VERSION OF DIMM MODULES ON DESKTOPS. Pins of 72, 100, 144, 200.
  15. 15Define SSD & 5 Benefits.SOLID-STATE DRIVES ARE COMMONLY USED AS SECONDARY STORAGE, CONTAINING NO MOVING PARTS AND NON VOLATILE(requires no power to retain data) AND NAND FLASH(rewritten easily) MEMORY FOR STORAGE. 5 BENEFITS BEING FAST ACCESS TIME, RELIABILITY( as no moving parts), LESS POWER, LESS NOISE, AND SMALLER SIZE
  16. 16Considerations when upgrading laptop memory and the steps to replace it?CONSIDER CONSULTING MOTHERBOARD USER GUIDE THAT IT CAN BE UPGRADED(doesn't have sealed bottom/soldered motherboard), DETERMINE HOW MUCH MEMORY YOU ARE CURRENTLY USING(find in task manage/resource monitor).
    STEPS: A - TURN OFF AND DISCONNECT POWER. B - REMOVE MEMORY COMPARTMENT DOOR. C - INSERT MEMORY DIAGONALLY INTO SLOT. D - PRESS DOWN UNTIL MEMORY CLICKS INTO PLACE. E - REPLACE MEMORY COMPARTMENT DOOR
  17. 17Define Hybrid Drives & 3 Benefits.HYBRID DRIVES ARE A COMBO OF HDD AND SSD, USING TRADITIONAL PLATTERS ALONG WITH HIGH-SPEED FLASH MEMORY. 3 BENEFITS BEING LESS COSTLY AND MORE CAPACITY OF AN SSD. AND HIGHER PERFORMANCE THAN HDD.
  18. 18How do you configure a mouse and define Optical Drives?GO TO THE MOUSE CONTROL PANEL APPLET IN WINDOWS, UPDATE DRIVERS/MAKE POINTER OPTIONS AND BUTTON CONFIGURATIONS.
    OPTICAL DRIVES RETRIEVE AND/OR STORE DATA ON OPTICAL DISKS (CD/DVD)
  19. 19Name options for enabling systems to connect to Wi-Fi or a wireless network(wireless cards)? Steps to replace a wireless card?USB Wi-FI ADAPTORS - PICK UP SIGNALS TO ​ENABLE SYSTEMS TO CONNECT TO THE NETWORK WITHOUT CABLE.
    MINI PCI - BUILT INTO OLDER LAPTOPS WITH 124 PIN EDGE CONNECTION, OFFERS SPEEDS OF 802.11g & 802.11b.
    MINI PCI EXPRESS - MODERN VERSION WITH 54 PIN EDGE CONNECTION, SPEEDS OF 802.11 a, b, g and n; MAKING IT MORE COMPATIBLE.
    CELLULAR CARD - ALLOWS YOU TO CONNECT DEVICES TO CELLULAR SIGNAL/NETWORK(3G/4G).
    STEPS TO REPLACE: A - TURN OFF LAPTOP. B - REMOVE BATTERY. C - REMOVE WIRELESS CARD COMPARTMENT DOOR. D - REMOVE ANY SCREWS AND THEN REMOVE THE ADAPTER FROM THE LAPTOP. E - DETACH ANTENNA WIRED FROM THE CARD. F - INSTALL THE NEW WIRELESS CARD. G - INSTALL DRIVER (if necessary)
  20. 20Name 6 Input and output devices?INPUT DEVICES - MOUSE, KEYBOARD, SCANNERS, OPTICAL DRIVERS, SMART CARD READER, TOUCH SCREENS.
    OUTPUT DEVICES - TOUCHSCREEN, SPEAKERS, DISPLAY DEVICES, PROJECTORS, PRINTERS, KVM(allows multiple outputs to go to a single unit)
  21. 21Name 7 system components?VIDEO CARDS, BATTERY, CPU, SYSTEM BOARD, DC JACK, PLASTIC FRAMES
  22. 22Define 3 types of Displays in flat screens?CATHODE RAY TUBE(CRT) - CARRIES A NEGATIVE CHARGE CAUSING ILLUMINATION.
    LIQUID CRYSTAL DISPLAY(LCD) - COMMONLY USED IN FLAT-PANEL MONITORS AND COMPUTERS.
    ORGANIC LIGHT-EMITTING DIODE (OLED) - VERY THIN DISPLAY WITH NO BACKLIGHTING, USING ORGANIC COMPOUNDS FOR ELECTROLUMINESCENCE
  23. 23DEFINE 4 TYPES OF LCD TECHNOLOGIES?IN-PLANE SWITCHING(IPS) PANEL TECHNOLOGY - BEST COLOUR ACCURACY, VIEWING ANGLES, AND OVERALL IMAGE.
    SUPER PLANE TO LINE SWITCHING(PLS) - ABOUT 10% BRIGHTER WITH AN INCREASE IN ANGLES.
    VERTICAL ALIGNMENT(VA) PANEL TECHNOLOGY - WIDER ANGLES, BETTER QUALITY, SLOWER RESPONSE TIMES(not good for gaming).
    TWISTED NEMANTIC (TN) PANEL TECHNOLOGY - FASTER RESPONSE TIME, LESS VIEWING ANGLES, AND CONTRAST RATIONS(good for gamers)
  24. 24Define 2 OLED types?PASSIVE-MATRIX OLED(PMOLED) - STRICTLY USES ELECTROLUMINESCENT LAYER TO LIGHT THE SCREEN(does not use TFT).
    ACTIVE-MATRIX OLED(AMOLED) - USES TFT AN ORGANIC COMPOUND THAT USES ELECTROLUMINESCENT AND DEGRADES OVER TIME DUE TO THIS. BETTER FOR DEVICES NOT ON FOR LONG (PHONES/TABLETS)
  25. 25Where is Wi-Fi Antennas?WRAPPED AROUND THE LAPTOP DISPLAY SCREEN BY PLACING THE CABLE AROUND THE FRAME. BETTER POSITION FOR IT TO WITHSTAND CONSTANT OPENING AND CLOSING OF THE SCREEN, IMPROVED PERFORMANCE IS LOCATED IN THE TOP PART OF THE LID.
  26. 262 Performance considerations for Webcams and 3 Benefits?CONSIDER IMAGE QUALITY (2 MILLION/2 MEGAPIXELS IS ENOUGH TO PROVIDE 1080p HIGH DEF RESOLUTION.
    FRAME RATE(higher frame rate = smoother video. 30fps considered best)
    HIGH QUALITY AND FRAMEWORK CAUSE MORE DATA.
    3 BENEFITS ARE IT IS PORTABLE, COMPATIBLE WITH MOST DEVICES, AND HAS ATTACHMENTS SUCH AS TRIPODS
  27. 27What is an inverter used for? Name 2 touchscreen types?INVERTORS ARE BUILT IN CCFL MONITORS FOR EXTRA PLUG PROTECTION, MAKING THEM HEAVIER AND NEED MORE POWER THAN LEDs.
    TYPES OF TOUCHSCREENS ARE: BUILT-IN SYSTEMS(smartphone/tablets) AND STANDALONE SYSTEMS(designed specifically for that particular system(KIOSKS))
  28. 28EXPLAIN THE LIGHTING TECHNOLOGIES IN FLAT SCREENS? BENEFITS?COLD CATHODE FLUORESCENT LIGHT(CCFL) - COMMONLY USED IN LCD MONITORS, NEON SIGNS & COMPUTER CASE LIGHTING. WEIGHS MORE AND USES MORE POWER THAN LEDS BUT DON'T RUN TOO HOT, PREVENTING DAMAGE TO CLOSE COMPONENTS.
    LIGHT-EMITTING DIODES (LED) - A SEMICONDUCTOR DEVICE THAT EMITS VISIBLE LIGHT. USED IN LCD PANEL BACKLIGHTING, FIBRE OPTIC DATA TRANSMISSION & INDICATORS LIGHTS. BENEFITS ARE LOW POWER REQUIREMENT, HIGH EFFICIENCY, MINIMAL HEAT PRODUCTION, LONG LIFE, GOOD QUALITY, AND LIGHTER.
  29. 29DEFINE DIGITIZER?ANY TYPE OF DEVICE(tablet/phone/touchscreens) THAT CAN PRODUCE/CONVERT A DIGITAL RESULT FROM A NON-DIGITAL INPUT(stylus/fingers). THEY CREATE A DIGITAL REPRESENTATION BASED ON ANALOG INFORMATION.

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Learning Technology Specialist CompTIA A+ (Core 1) FlashCards sobre Module 1, criado por Chantelle Knight em 24-08-2021.
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