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30 Cards in this Set

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What is A+ Certification Exam?
---MEASURE & ASSURE---
A+ Certification Exam measures the ability and the knowledge of PC technicians. Assuring Employers and computer owners that a PC repair technician has the requisite knowledge to build, upgrade, troubleshoot, and repair personal computer systems.
Who is CompTIA?
---HISTORY & GOAL---
Computing Technology Industry Association is a membership trade organization that was formed in 1982 to promote standards of excellence in computer technology. Its goals are to develop ethical, professional, and business standards and provide educational opportunities to the industry.
What do the A+ Exams Cover?
Procedures, Tools, and Skills.
Domains:
Installation, Configuration, and Upgrading
Diagnosing and Troubleshooting
Preventive Maintenance
Motherboard/Processors/Memory
Printers
Basic Networking
OS Fundamentals
Installation, Configuration, and Upgrading
Diagnosing & Troubleshooting
Networks
ESD stands for ___.
Electrostatic Discharge
___measures the electrical pressure in a circuit.
Voltage
___measures an electrical current's strength or rate of flow.
Amps
A semiconductor that can store one of two toggled values is a(n)___.
Transistor
Household use ___ current electricity.
Alternating
PCs use ___ current electricity.
Direct
The ___ number system uses only the numbers 1 & 0.
Binary
The ___ number system uses the number 0-9 and the letters A-F.
Hexadecimal.
Measures a conductor's resistance to electricity.
Ohms
Resistance of less than ___ ohms means that current can flow through a computer system.
20
Measures the electrical pressure in a circuit.
Volts
A PC power supply generates ___ levels of voltages: ___,___,___,and ___
4, +5V, -5V, +12V, -12V
Measures the electrical power in a circuit range.
Watts
DVM
Multimeter: a device measures V, Amp, & Ohm.
A PC power supply is rated in a range of ___ to ___ watts.
200 to 600 W
AC
Alternating Current
DC
Direct Current
__ is the current type used inside the computer.
DC
Watts = ___ x ___
W = V x Amp
Static
Static Electricity/Electrostatic discharge
Grounded wrist strap: connected to ___ or ___.
grounding mat or the PC chassis.
Where to use grounded wrist strap?
any part of the computer except the monitor.
Continuity
Indicates the existence of a complete circuit.
A mere ___ volts will damage electronic components.
30
A human feels ESD at around ___ volts.
3000
___ are chemically treated or have copper fittings designed to channel electrostatic discharge away from the sensitive components inside.
Computer cases
Most of the computer's electronics use ___ or ___ volts of electricity.
3 or 5 V