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Composite Video Also called baseband video or RCA video, is the analog waveform that conveys the image data in a conventional National Television Standards Committee (NTSC) television signal. Composite video contains chrominance (hue and saturation) and luminance (brightness) information, along with synchronization and blanking pulses, all together in a single signal.
1/8 in. Stereo Mini: A mini stero plug similar to 1/4 in. Most common in portable audio devices and computer sound cards.
Composite Video Also called baseband video or RCA video, is the analog waveform that conveys the image data in a conventional National Television Standards Committee (NTSC) television signal. Composite video contains chrominance (hue and saturation) and luminance (brightness) information, along with synchronization and blanking pulses, all together in a single signal.
1/8 in. Stereo Mini: A mini stero plug similar to 1/4 in. Most common in portable audio devices and computer sound cards.
Bus speed, measured in megahertz, is the rate at which the CPU communicates with the memory and motherboard, over a series of wires.Bus speed, measured in megahertz, is the rate at which the CPU communicates with the memory and motherboard, over a series of wires.
Back to topColor resolution refers to the bits of data used to store information about every pixel in an image. The higher the color resolution, the more color possibilities in an image and the larger the file.Color resolution refers to the bits of data used to store information about every pixel in an image. The higher the color resolution, the more color possibilities in an image and the larger the file.
Back to topConnectors are wires that facilitate file transfer between laptops and external devices, such as digital cameras and printers.
Types
USB: The Universal Serial Bus connector transfers data at a rate of 12 Mbps, without the addition of an adapter card.
USB 2.0: This high-speed successor to the Universal Serial Bus connector transfers data at a rate of 480 Mbps, without the addition of an adapter card.
FireWire: FireWire is Apple's version of the IEEE 1394 high-speed serial bus. Connect up to 63 devices and transfer data at a rate of 400 Mbps with FireWire.
IEEE 1394: The Institute of Electrical and Electronics Engineers (IEEE 1394) high-speed serial bus standard connector transfers data at a rate of up to 400 Mbps. Two types of IEEE 1394 are Apple's FireWire and Sony's i.LINK.
Parallel: The parallel connector transfers one or more bits simultaneously.
PS/2: Sometimes called the mouse port, the PS/2 is a round connector that typically connects the mouse and keyboard to a computer.
IEEE 1284: The Institute of Electrical and Electronics Engineers (IEEE 1284) enhanced parallel port connector is typically used to connect printers and scanners to computers.Connectors are wires that facilitate file transfer between laptops and external devices, such as digital cameras and printers.
Types
USB: The Universal Serial Bus connector transfers data at a rate of 12 Mbps, without the addition of an adapter card.
USB 2.0: This high-speed successor to the Universal Serial Bus connector transfers data at a rate of 480 Mbps, without the addition of an adapter card.
FireWire: FireWire is Apple's version of the IEEE 1394 high-speed serial bus. Connect up to 63 devices and transfer data at a rate of 400 Mbps with FireWire.
IEEE 1394: The Institute of Electrical and Electronics Engineers (IEEE 1394) high-speed serial bus standard connector transfers data at a rate of up to 400 Mbps. Two types of IEEE 1394 are Apple's FireWire and Sony's i.LINK.
Parallel: The parallel connector transfers one or more bits simultaneously.
PS/2: Sometimes called the mouse port, the PS/2 is a round connector that typically connects the mouse and keyboard to a computer.
IEEE 1284: The Institute of Electrical and Electronics Engineers (IEEE 1284) enhanced parallel port connector is typically used to connect printers and scanners to computers.
Diagonal screen size is the measure from bottom corner to opposite top corner of the viewable screen of a device.Diagonal screen size is the measure from bottom corner to opposite top corner of the viewable screen of a device.
Back to topA hard drive interface facilitates communication between a hard disk and a computer.
Types
IDE: The Integrated Drive Electronics interface, based on a 16-bit bus standard, facilitates communication between the motherboard’s data paths or bus and the disk storage devices.
EIDE: The Enhanced Integrated Drive Electronics interface facilitates communication between the computer and its mass storage drives, provides faster access to the hard drive, and offers support for Direct Memory Access (DMA) and additional drives, including CD-ROM and tape devices.
SATA: The Serial Advanced Technology Attachment, based on serial signaling technology, facilitates communication between hard drives and computer systems.
SCSI: The Small Computer System Interface, developed by Apple, facilitates communication between personal computers and external hardware such as disk drives, tape drives, CD-ROM drives, printers, and scanners.A hard drive interface facilitates communication between a hard disk and a computer.
Types
IDE: The Integrated Drive Electronics interface, based on a 16-bit bus standard, facilitates communication between the motherboard’s data paths or bus and the disk storage devices.
EIDE: The Enhanced Integrated Drive Electronics interface facilitates communication between the computer and its mass storage drives, provides faster access to the hard drive, and offers support for Direct Memory Access (DMA) and additional drives, including CD-ROM and tape devices.
SATA: The Serial Advanced Technology Attachment, based on serial signaling technology, facilitates communication between hard drives and computer systems.
SCSI: The Small Computer System Interface, developed by Apple, facilitates communication between personal computers and external hardware such as disk drives, tape drives, CD-ROM drives, printers, and scanners.
Installed memory, measured in megabytes (MB) or gigabytes (GB), regulates the amount of data a device can store.Installed memory, measured in megabytes (MB) or gigabytes (GB), regulates the amount of data a device can store.
Back to topLevel 2 Cache is the fastest type of RAM available, located on a separate chip from the computer’s microprocessor for easier and quicker accessibility.Level 2 Cache is the fastest type of RAM available, located on a separate chip from the computer’s microprocessor for easier and quicker accessibility.
Back to topThe maximum cache supported by a laptop refers to the largest amount of high-speed RAM allotted to a computer.The maximum cache supported by a laptop refers to the largest amount of high-speed RAM allotted to a computer.
Back to topMaximum resolution, measured in pixels, refers to the highest quality of image a device can display.Maximum resolution, measured in pixels, refers to the highest quality of image a device can display.
Back to topThe maximum supported RAM of a laptop refers to the highest level of memory upgrade supported by the motherboard.The maximum supported RAM of a laptop refers to the highest level of memory upgrade supported by the motherboard.
Back to topMaximum resolution, measured in pixels, refers to the highest quality of video a device can display.Maximum resolution, measured in pixels, refers to the highest quality of video a device can display.
Back to topA memory card slot reads removable storage cards compatible with portable devices.A memory card slot reads removable storage cards compatible with portable devices.
Back to topA modem is a device that facilitates internet connection via telephone line.
Types
Analog Modem: An analog modem takes audio and video signals and converts them into electronic pulses, sending data over telephone networks as a series of tones.
Digital Modem: A digital modem breaks audio and video signals into binary code (a series of ones and zeroes), transfers the signals, and then converts them back to the original signal, allowing more information transfer than an analog modem.A modem is a device that facilitates internet connection via telephone line.
Types
Analog Modem: An analog modem takes audio and video signals and converts them into electronic pulses, sending data over telephone networks as a series of tones.
Digital Modem: A digital modem breaks audio and video signals into binary code (a series of ones and zeroes), transfers the signals, and then converts them back to the original signal, allowing more information transfer than an analog modem.
The motherboard chipset regulates processor and RAM compatibility and the speed at which they function.
Types
Intel: This type of chipset offers compatibility with Intel Pentium and Intel Celeron processors.
Via: This type of chipset offers compatibility with Pentium 4, AMD Athlon XP, and AMD Duron processors.
nVidia: This type of chipset offers compatibility with AMD XP and AMD Duron processors.
SiS: This type of chipset offers compatibility with Pentium 4, AMD Athlon XP, and AMD Duron processors.The motherboard chipset regulates processor and RAM compatibility and the speed at which they function.
Types
Intel: This type of chipset offers compatibility with Intel Pentium and Intel Celeron processors.
Via: This type of chipset offers compatibility with Pentium 4, AMD Athlon XP, and AMD Duron processors.
nVidia: This type of chipset offers compatibility with AMD XP and AMD Duron processors.
SiS: This type of chipset offers compatibility with Pentium 4, AMD Athlon XP, and AMD Duron processors.
A networking connection is a link between two or more computers to facilitate file transfer.
Types
Ethernet: This 10BaseT connection transfers data at a rate of 10Mbps.
Fast Ethernet: This 100BaseT connection transfers data at a rate of 100Mbps.
Gigabit Ethernet: This 1000BaseT connection transfers data at a rate of 1Gbps.
IEEE 1394: This connection transfers data at a rate ranging from 800Mpbs to 3200Mbps and offers compatibility with glass, fiber, and cat5 cable.
Bluetooth: This wireless connection transfers data at a rate of 720 Kbps at a range of 10-100 meters.
802.11b: This wireless connection transfers data at a rate of 11Mbps in a 2.4GHz band.
802.11a: This wireless connection transfers data at a rate of 54Mbps in a 5GHz band.A networking connection is a link between two or more computers to facilitate file transfer.
Types
Ethernet: This 10BaseT connection transfers data at a rate of 10Mbps.
Fast Ethernet: This 100BaseT connection transfers data at a rate of 100Mbps.
Gigabit Ethernet: This 1000BaseT connection transfers data at a rate of 1Gbps.
IEEE 1394: This connection transfers data at a rate ranging from 800Mpbs to 3200Mbps and offers compatibility with glass, fiber, and cat5 cable.
Bluetooth: This wireless connection transfers data at a rate of 720 Kbps at a range of 10-100 meters.
802.11b: This wireless connection transfers data at a rate of 11Mbps in a 2.4GHz band.
802.11a: This wireless connection transfers data at a rate of 54Mbps in a 5GHz band.
An operating system is the software that controls and manages the hardware, basic system operations, and application software of a computer.
Back to topThe Power Source produces energy on which a device runs.
Types
NiMH: Nickel metal hydride batteries are high-capacity, rechargeable batteries.
NiCd: Nickel cadmium batteries are medium-capacity, rechargeable batteries.
Lithium: Lithium batteries are non-rechargeable and have an average shelf life of up to ten years.
Alkaline: Alkaline batteries are non-rechargeable and have an average shelf life of up to five years.
Rechargeable Alkaline: Rechargeable alkaline batteries can be recharged up to 25 times.
Processor speed, measured in megahertz (MHz) or gigahertz (GHz) per second, describes the rate at which a computer performs basic functions and runs applications.Processor speed, measured in megahertz (MHz) or gigahertz (GHz) per second, describes the rate at which a computer performs basic functions and runs applications.
Back to topThe processor, short for Central Processing Unit (CPU), serves as the brains of a computer.The processor, short for Central Processing Unit (CPU), serves as the brains of a computer.
Back to topRAM is the Random Access Memory, or the memory compatible with the motherboard, available in a device.
Types
DDR: Double Data Rate RAM transfers data on both sides of the clock signal, doubling the transmission rate.
RDRAM: Rambus Dynamic RAM, designed by Rambus, features a bandwidth of 1.6 GB/s.
SDRAM: Synchronous Dynamic RAM synchronizes with the CPU bus for data transfer of up to 133 MHz.
DRAM: Dynamic RAM stores each bit of memory in a different capacitor.
EDO: Extended Data Out Dynamic RAM, rather than transferring data one block at a time, is capable of transferring multiple blocks at once.RAM is the Random Access Memory, or the memory compatible with the motherboard, available in a device.
Types
DDR: Double Data Rate RAM transfers data on both sides of the clock signal, doubling the transmission rate.
RDRAM: Rambus Dynamic RAM, designed by Rambus, features a bandwidth of 1.6 GB/s.
SDRAM: Synchronous Dynamic RAM synchronizes with the CPU bus for data transfer of up to 133 MHz.
DRAM: Dynamic RAM stores each bit of memory in a different capacitor.
EDO: Extended Data Out Dynamic RAM, rather than transferring data one block at a time, is capable of transferring multiple blocks at once.
LCD: Liquid Crystal Display screens contain crystals that work like shutters, allowing light to pass through.
TFT: Thin Film Transistor screens control each pixel of an image with one to four transistors.
Active Matrix: This type of TFT screen controls each pixel of an image individually.
Passive Matrix: This type of LCD screen controls pixels not individually, but as a whole.LCD: Liquid Crystal Display screens contain crystals that work like shutters, allowing light to pass through.
TFT: Thin Film Transistor screens control each pixel of an image with one to four transistors.
Active Matrix: This type of TFT screen controls each pixel of an image individually.
Passive Matrix: This type of LCD screen controls pixels not individually, but as a whole.
A sound card is an expansion board that facilitates communication between computer and speakers to produce sound.A sound card is an expansion board that facilitates communication between computer and speakers to produce sound.
Back to topLaptop: A laptop is a portable computer with a built-in disk drive or a removable CD-ROM drive.
Notebook: A notebook is a portable computer, smaller than a laptop, that requires the connection of an external CD-ROM drive.
Tablet PC:A tablet PC is a portable computer that allows users to write directly on the screen.
A video card interface is a connector that facilitates file transfer between a video card and a computer.
Types
AGP: The Accelerated Graphics Port, developed by Intel, uses a 32-bit bus to provide direct connection between card and memory.
AGP 1x: The Accelerated Graphics Port 1x transfers data at a rate of 264Mbps.
AGP 2x: The Accelerated Graphics Port 2x transfers data at a rate of 528Mbps.
AGP 4x: The Accelerated Graphics Port 4x transfers data at a rate of 1Gbps.
AGP 8x: The Accelerated Graphics Port 8x transfers data at a rate of 2Gbps.
PCI: The Peripheral Component Interconnect, which requires three to five slots on the motherboard, supports both 32-bit and 64-bit data paths and runs at a speed of 33MHz or 66MHz.
ISA: The Industry Standard Architecture refers to the original PC bus architecture.A video card interface is a connector that facilitates file transfer between a video card and a computer.
Types
AGP: The Accelerated Graphics Port, developed by Intel, uses a 32-bit bus to provide direct connection between card and memory.
AGP 1x: The Accelerated Graphics Port 1x transfers data at a rate of 264Mbps.
AGP 2x: The Accelerated Graphics Port 2x transfers data at a rate of 528Mbps.
AGP 4x: The Accelerated Graphics Port 4x transfers data at a rate of 1Gbps.
AGP 8x: The Accelerated Graphics Port 8x transfers data at a rate of 2Gbps.
PCI: The Peripheral Component Interconnect, which requires three to five slots on the motherboard, supports both 32-bit and 64-bit data paths and runs at a speed of 33MHz or 66MHz.
ISA: The Industry Standard Architecture refers to the original PC bus architecture.
A video card serves as an interface between the CPU and the computer monitor by processing the data for display.A video card serves as an interface between the CPU and the computer monitor by processing the data for display.
Back to topVideo resolution standard describes the fixed array of pixels that a device can display.
Types
VGA: Video Graphics Array devices feature a native resolution of 720 x 400 pixels.
SVGA: Super Video Graphics Array devices feature a native resolution of 800 x 600 pixels.
XGA: Extended Graphics Array devices feature a native resolution of 1024 x 768 pixels.
SXGA: Super Extended Graphics Array devices feature a native resolution of 1280 x 1024 pixels.
UXGA: Ultra Extended Graphics Array devices feature a native resolution of 1600 x 1200 pixels.
QXGA: Quantum Extended Graphics Array devices feature a native resolution of 2048 x 1536 pixels.Video resolution standard describes the fixed array of pixels that a device can display.
Types
VGA: Video Graphics Array devices feature a native resolution of 720 x 400 pixels.
SVGA: Super Video Graphics Array devices feature a native resolution of 800 x 600 pixels.
XGA: Extended Graphics Array devices feature a native resolution of 1024 x 768 pixels.
SXGA: Super Extended Graphics Array devices feature a native resolution of 1280 x 1024 pixels.
UXGA: Ultra Extended Graphics Array devices feature a native resolution of 1600 x 1200 pixels.
QXGA: Quantum Extended Graphics Array devices feature a native resolution of 2048 x 1536 pixels.
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