Introduction to the Personal Computer System Flashcards
What is Form Factor?
Physical Design and Look of a computing device
What does computer chassis, cabinet, tower, housing or box refer to?
Computer case
What is an AT Power Supply used for?
Advanced Technology Power Supply is for legacy computer systems now obsolete
What is an AT Extended Power Supply used for?
Updated version of AT but still considered obsolete
The ATX12V Power Supply, what is this used for?
Most common power supply on the market today. It includes another power supply for the CPU
What is the EPS12V Power Supply used for?
Was originally designed for network servers but now commonly used for high-end desktop models
What are the facts about 20-pin or 24-pin slotted connector?
Used for motherboard. 20-pin connector has two rows of 10 pins. 24-pin connector has two rows of 12 pins
what is a SATA keyed connector
Connects to disk drives, the connector is wider and thinner than a Molex connector.
What is a Molex keyed connector
connects to hard drives, optical drives or other devices
What is the Berg keyed connector?
Connect to legacy floppy drives and is smaller than a Molex connector
What is the 4-pin to 8-pin auxillary power connector used for?
Connector has two rows of two or four pins and supplies power to different areas of the motherboard and CPU.
what are the facts about 6 to 8-pin PCIe power connector?
Connector has two rows of three or four pins and supplies power to internal components (e.g. graphics card).
What is the +12V Wire on a power connector used for and what color is it?
it is the Yellow wire and used for Disk drive motors, fans, cooling devices, and the system bus slots
What is the -12V Wire on a power connector used for and what color is it?
it is the Blue wire and used for some type of serial port circuits and early programmable read only memory (PROM)
What is the +3.3V Wire on a power connector used for and what color is it?
it is the Orange wire on a power connection, it is used for most newer CPUs, some type of system memory, and AGP video cards and is not on the AT power supply
What is the +5V Wire on a power connector used for and what color is it?
it is the Red wire which is used for motherboards, baby AT and earlier CPUs, and many motherboard components
What is the -5V Wire on a power connector used for and what color is it?
It is the white wire and used for ISA bus cards and early PROMS
What is the 0V Wire on a power connector used for and what color is it?
It is the black wire and used to complete circuits with the other voltages
What is the equation for voltage?
V= IR, Voltage = Current x Resistance
What is the equation for power?
P = VI, Power = Voltage x Current
What should you pay attention to when purchasing a power supply?
The wattage, so that it has more than enough power to handle the current components
What is a Voltage selector switch?
It sets the input voltage to the power supply to either 110V / 115V or 220V / 230V. A power supply with this switch is called a dual voltage power supply.
Can you open a power supply?
No, DO NOT open a power supply. Electronic capacitors located inside of the power supply can hold a charge for extended periods of time.
What is the BIOS and UEFI?
The Basic Input and Output System (BIOS) is used to help boot the computer and manage the flow of data between the hard drive, video card, keyboard, mouse and more. UEFI enhances the BIOS and specifies a different software interface for boot and runtime services but still has to rely on the BIOS for system configuration, POST and setup.