Chapter 1 : Taking a Computer Apart & Putting Back Together
What is true about AC electricity?
It travels from a hot line and returns on a neutral line
What connector has 4 pins, is used for older IDE drives and some SATA drives, and can provide +5 V and +12 V power outputs?
Molex connector
Which general-purpose tool can measure characteristics of electricity in a variety of devices?
Multimeter
A fast expansion slot found on a motherboard
PCIe
a series of tests performed by the startup BIOS when you first turn on a computer
POST
What tool can help discover and report computer errors and conflicts that occur when you first turn on a computer and before the operating system is launched?
POST Card
What tool can help discover and report computer errors and conflicts that occur when you first turn on a computer and before the operating system is launched?
POST card
What is the component called that usually has a dual-voltage selector switch and has cables that connect to the motherboard and internal components?
PSU
What is the component that usually has a dual-voltage selector switch and has cables that connect to the motherboard and drives called?
PSU
What is the connector called on a network cable that connects to an Ethernet port?
RJ-45
a device that converts AC to DC
Rectifier
What audio port connects to an external home theater audio system, providing digital audio output?
S/PDIF
a device that changes the ration of voltage to current
Transformer
What are two resources that may be useful in disassembling a laptop computer?
User manual and Service manual
Which unit of electricity measures electrical force and 115 is a common value?
Volt
Which unit of electricity measures is used to measure the power consumption of a device?
Watt
What statement about an FRU is true?
a support technician should know how to replace one
What is the most common pointing device on laptops?
a touch pad
In a cellular network, each cell is controlled by a tower. What are these towers called?
base stations
What are PCIE slots used for?
expansion cards
A DVI port transmits a video signal and is also called a DB-15 port.
false
A tower case conserves space since it can double as a monitor stand.
false
Functions that used to be provided by expansion cards are more often found as onboard ports today.
false
Hard drives have three connections for cables: one for reading data, one for writing data, and one for power.
false
Programs and data that are stored on a motherboard are referred to by what term?
firmware
Law enforcement agencies sometimes use what type of data to reconstruct a person's travels?
geotracking
What component is most likely to be installed in a PC, is considered primary storage, and typically stores the operating system, as well as its applications?
hard disk drive
Which statement is NOT true regarding motherboards?
has a heat sink on the PCIe slots
What are the two most common form factors used today for computer cases, power supplies, and motherboards?
mATX & ATX
What general-purpose tool can measure characteristics of electricity in a variety of devices?
multimeter
A measure of resistance to electricity
ohm
The two services that Windows must provide for an ExpressCard are:
socket service & card service
What is the name for the type of flash memory that is used by mobile devices to store their apps and data?
solid state device
What are two different ways by which a laptop could utilize the cellular network connection of a mobile device?
tethering & hotspot
An Ethernet port has a connector called an RJ-45 to connect to a network cable.
true
How many pins are in the power supply connector that is typically used on most motherboards today?
24-pin
Which power supply connector is the main motherboard power connector on most motherboards today?
24-pin
How many pins are used in a parallel port, also known as an LPT port?
25
Sometimes an expansion board may have an extra PCIE power connector. This connector comes in what two different pin configurations?
6-pin and 8-pin
If you have a PCI Express Version 2 video card, how many pins will the power connector have if the card requires extra power?
8
The PCIe connectors on an ATX Version 2.2 power supply come in what two different configurations, depending on the version of PCI express involved?
8-pin & 6-pin
A micro-ATX motherboard will fit into a case that follows what minimum standard?
ATX 2.1
Which type of electrical current is used to transmit electricity to our homes and workplaces?
Alternating
What two different types of firmware may be used on motherboards?
BIOS & UEFI
What two different types of firmware may be used on motherboards?
BIOS and UEFI
Which statement is NOT true regarding motherboards? A. Has a CPU socket B. Has slots for DIMMS C. Has a heat sink on the PCIE slots D. Also called a system board
C (it does not have a heat sink on the PCIE slots)
What type of component holds its charge even after the power is turned off and the device is unplugged?
Capacitor
What type of port is sometimes used by routers for management and configuration purposes?
DB9 port
transmits digital video and audio and is slowly replacing VGA and DVI
Display Port
What types of ports transmits both digital audio and digital video with a single connector?
Display port and HDMI
Which component may be considered a field replaceable unit or FRU? A. LCD screen B. Power supply C. Hard drive D. Motherboard E. All of these
E (all of the above)
Which disk drive standard uses an 80-conductor cable?
EIDE
What acronym is another name for static electricity, which can damage chips and destroy motherboards?
ESD
T/F: A DVI port transmits a video signal and is also called a DB-15 port
False
Embedded programs that are closely tied to the hardware
Firmware
What type of port transmits both digital audio and digital video with a single connector?
HDMI
