Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

Username is available taken
show password

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

CompTIA A+

CompTIA A+ Certification

IRQ #0 System Timer
IRQ #1 Keyboard
IRQ #2 Cascade to/form IRQ #9 (Used by some VGA and Network Cards)
IRQ #3 COM2 and COM4
IRQ #4 COM1 and COM3
IRQ #5 LPT2 or Sound Card
IRQ #6 Floppy disk controller
IRQ #7 LPT1 or Sound Card
IRQ #8 Real Time Clock
IRQ #9 Software redirected to interrupt 0AH
IRQ #10 Open
IRQ #11 Open
IRQ #12 PS/2 port
IRQ #13 Coprocessor
IRQ #14 Primary IDE interface
IRQ #15 Secondary IDE interface
What are the two primary types of SCSI? LVD (Low Voltage Differential) HVD (High Voltage Differential)
How many pins does a 16 bit SCSI connector have? 68 pins
Serial Connector Types DB-9 & DB-25
Null Modem Cable Two way communication
Parallel Port Modes SPP (Standard Parallel Port) basic ECP (Extended Capabilities Port) common now EPP (Enhanced Parallel Port) older devices
External SCSI devices use 50-Pin connectors
The higher the SCSI ID The Higher the priority
How many devices does USB support on one PC 127
How many IRq's does USB take up? 1
PCMCIA Types Type1: Memory, one slot, 3.3 mm Type2: one slot, 5.0 mm Type3: hard drives, two slots, 10.5 mm
Created by: dacheeves
Popular Standardized Tests sets




Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
restart all cards