Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
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