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33 Cards in this Set
- Front
- Back
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AC(Type of current) |
Alternating current |
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DC(what powers all of computer components) |
Direct Current |
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Form Factor |
The size and/or configuration of computer components |
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AT(Advanced Technology) |
This is the original power supply for legacy computer systems now considered obsolete.
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ATX(AT extended) |
This is the updated version of the AT but still considered to be obsolete.
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ATX12V
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This is the most common power supply on the market today. It includes a second motherboard connector to provide dedicated power to the CPU. There are several versions of ATX12V available.
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EPS12V
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This was originally designed for network servers but is now commonly used in high-end desktop models.
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Keyed connectors |
they are designed to be inserted in only one orientation.
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20 pin or 24 pin slotted power supply cord connector |
connects to the motherboard 24 pin has 12 pins and 2 rows 20 pin has 10 pins with 2 rows |
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SATA(Serial AT attachment) |
connects to disk drives is wider and thinner then molex connector |
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Molex keyed connector |
connects hardrives,optical drives,and other devices |
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Berg keyed connector |
connects to legacy floppy drives smaller than molex connector |
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4 to 8 pin auxillary power connector |
connector has 2 rows of 2 to 4 pins and supplies power to different area of the motherboard has same shape as the main power connector but smaller |
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6/8 pin PCIe power connector("Peripheral Component Interconnect") |
has 2 rows of 3 to 4 pins and supplies power to internal components |
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Different voltages |
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A Rail |
The printed circuit board (PCB) inside the power supply to which the external cables are connected
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Voltage(V) |
Measured in volts(V) the measure of work required to move a charge from one location to another |
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Current(I) |
measured in Amperes or Amps(A) the measure of of amount of electrons moving through a circuit per second |
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Resistance (R) |
measured in Ohms (O) refers to the opposition to the flow of the current in a circuit lower resistance allows more flow through a circuit a good fuse has a lower amount of ohms or almost 0 |
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Power(P) |
measured in Watts(W) the amount of work required to move electrons through a circuit(voltage) mutiplied by the number of electrons going through that circuit (current)per second Computer power supplies are rated in watts |
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Ohm's law |
V=IR in electrical system P=VI |
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Dual voltage power supply |
This switch sets the input voltage to the power supply to either 110V / 115V or 220V / 230V. |
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Voltage of the wire color |
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motherboard |
is a printed circuit board (PCB) that contains buses, or electrical pathways, that interconnect electronic components.
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CPU(Central proccesing unit) |
This is considered the brain of the computer.
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Random Access Memory (RAM)
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This is a temporary location to store data and applications.
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Chipset
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This consists of the integrated circuits on the motherboard that control how system hardware interacts with the CPU and motherboard. It also establishes how much memory can be added to a motherboard and the type of connectors on the motherboard.
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Basic input/output system (BIOS) chip andUnified Extensible Firmware Interface (UEFI)
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BIOS is used to help boot the computer and manage the flow of data between the hard drive, video card, keyboard, mouse, and more. Recently the BIOS has been enhanced by UEFI. UEFI specifies a different software interface for boot and runtime services but still relies on the traditional BIOS for system configuration, power-on self test (POST), and setup.
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Northbridge
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Controls high speed access to the RAM and video card. It also controls the speed at which the CPU communicates with all of the other components in the computer. Video capability is sometimes integrated into the Northbridge.
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Southbridge |
Allows the CPU to communicate with slower speed devices including hard drives, Universal Serial Bus (USB) ports, and expansion slots.
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Motherboard form factor Advanced Technology eXtended (ATX) - |
This is the most common motherboard form factor. The ATX case accommodates the integrated I/O ports on the standard ATX motherboard. The ATX power supply connects to the motherboard via a single 20-pin connector.
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Motherboard form factor Micro-ATX |
This is a smaller form factor that is designed to be backward-compatible with ATX. Micro-ATX boards often use the same Northbridge and Southbridge chipsets and power connectors as full-size ATX boards and therefore can use many of the same components. Generally, Micro-ATX boards can fit in standard ATX cases. However, Micro-ATX motherboards are much smaller than ATX motherboards and have fewer expansion slots.
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ITX motherboard form factor
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The ITX form factor has gained in popularity because of its very small size. There are many types of ITX motherboards; however, Mini-ITX is one of the most popular. The Mini-ITX form factor uses very little power, so fans are not needed to keep it cool. A Mini-ITX motherboard has only one PCI slot for expansion cards. A computer based on a Mini-ITX form factor can be used in places where it is inconvenient to have a large or noisy computer.
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