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International Academy of Design & Technology IT IT110 Chapter 4 REVIEWING THE BASICS 1)Volts are a measure of what characteristic of electricity? What is the normal voltage of house electricity in the U
International Academy of Design & Technology
IT IT110
Chapter 4
REVIEWING THE BASICS
1)Volts are a measure of what characteristic of electricity?
- What is the normal voltage of house electricity in the U.S.?
- Hot wires in home wiring are normally colored and ground wires in computers are normally colored .
- What is the difference between a transformer and a rectifier? Which are found in a PC power supply?
- What are the five voltages produced by an ATX or BTX power supply?
- What is the purpose of the 4-pin auxiliary connector on a motherboard?
- How many pins does the main power connector on a BTX board have?
- When taking a computer apart, why is it important to not stack boards on top of each other?
- Describe the purpose of the ground line in a house circuit. What is the electrical symbol for ground?
- What is the basic electronic building block of an integrated circuit?
- Why is a power supply dangerous even after the power is disconnected?
- What is the symbol for a diode?
- What is a simple way to detect EMI?
- What is an unintended, high-current, closed connection between two points in a circuit called?
- Which form factor uses a riser card on the edge of the motherboard?
- List four types of computer case form factors. What is the most popular type of form factor for PCs today?
- List three advantages an ATX system has over a Baby AT system.
- List four computer symptoms that indicate a faulty power supply.
- According to ACPI standards, the S1 mode causes what two devices to stop using power?
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- What is another name for the ACPI standard S4 mode?
- What power management standard is older than ACPI and has mostly been replaced by ACPI?
- How can you easily tell if a computer is designed to comply with Green Standards?
- What unit of measure is used to describe the amount of work a surge suppressor can do before it stops protecting the circuit from an electrical surge?
- Why is it important to have an indicator light on a surge suppressor?
- What are the two main types of uninterruptible power supplies?
- How does a smart UPS differ from one that is not smart?
- If you are asked to identify the form factor of a motherboard, what are two criteria you can use to help you identify the board?
- What are three motherboard form factors that can be used with a compact case?
- What is one thing you can regularly do to prevent a computer system from overheating?
- Which type of case form factor is best designed to keep a system cool?
THINKING CRITICALLY
- How much power is consumed by a load drawing 5 A with 120 V across it?
- You suspect that a power supply is faulty, but you use a multimeter to measure its voltage output and find it to be acceptable. Why is it still possible that the power supply may be faulty?
- Someone asks you for help with a computer that hangs at odd times. You turn it on and work for about 15 minutes, and then the computer freezes and powers down. What do you do first?
- When working on a computer, which of the following best protects against ESD? Why?
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