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half-duplex
<communications> (hdx, from telegraphy) 1. A type of
communication channel using a single circuit which can carry
data in either direction but not both directions at once.
Compare: simplex, full-duplex.
2. An obsolete term for local echo.
(2001-07-21)
Try this search on OneLook / Google
Nearby terms:
HAKMEM « hakspek « HAL « half-duplex » halftone » HALGOL » HALMAT
This article was derived from the Free Online Dictionary of Computers and is available under ther terms of the GNU Free Documentation License.
4-Bay mATX Case w/230W PS/ Light/Handle (Black)4-Bay mATX Case w/230W PS/ Light/Handle (Black) ** 4-Bay mATX Charcoal Black Computer Case** This mATX computer case will provide the foundation to getyou started building a great computer system! This case comes in a sleek charcoal black design and a top handlefor easy transport! The front panel emits a cool neon bluelight when it's all fired up! It features four drive bays,four expansion slots, and a 230-watt power supply! Add thesystem board, expansion cards, and drives to get you started!!General Features:- Charcoal Black case design- Front case lights up blue neon light- Molded plastic top handle- Power button- Reset button- Two (2) USB ports at front of case- Front headphone and microphone jacks- Space saving design with matching standsDrive Bay Features:- One (1) 5.25-inch external drive bay- One (1) 3.5-inch external drive bay- Two (2) 3.5-inch internal drive baysExpansion Features:- Four (4) punchout expansion slotsSupported Form Factors:- mATXCase Supply Support:- Two (2) 60 mm fans on back of case (Not included)Power Supply Features:- Model: LP6100A- 230-watt power supply- 115v-230v manual switchPower Supply Input:- 115-230 VAC, 50-60 Hz, 3A/2.5A-> Power Supply Output:- +5V,18A- +3.3V,10A- -12V, 0.8A- +12V, 7A- +5Vsb, 2A- +5V and +3.3V total output = 123WCase Dimensions:- 15.5 x 5.25 x 14-inches (H x W x D)Package Includes:- 4-Bay Charcoal Black mATX Case- Screw Pack- Power Cord- Stands Compatibility/Requirements/Disclosures: ** Requirements *** Supported mATX motherboard* Rest of system* Available power outlet More ...
Biostar M6VLR S370 mATX MB &PIII 866MHz CPU FanBiostar M6VLR S370 mATX MB &PIII 866MHz CPU Fan ** Biostar M6VLR Socket 370 mATX MB & PIII 866 MHz CPU w/Heat Sink & Fan **Looking to build a Socket 370 motherboard? We have this amazing kit that includes a motherboard + CPU + heat sink and fan! This Biostar M6VLR features the VIA PLE133Tchipset and supports up to 1 GB SDRAM. This mATX motherboard supports 133 MHz Front Side Bus and offers fast UDMA/100 data transfers. The M6VLR supports Intel Pentium III processors up to 1.4 GHz (both Tualatin and Coppermine core), Celeron processors up to 1.3 GHz and VIA C3 processors up to 933 MHz. Video, Audio and an Ethernet controller are all integrated, and expansion is handled with an AMR slot, three PCI slots and an ISA slot. This kit includes an Intel Pentium III 866 MHz Socket 370 CPU as well as a heat sink and fan. Get this great kit today!Biostar M6VLR Socket 370 Motherboard Features:- VIA VT8601T(PLE133T) / VT82C686B chipset- Socket 370- mATX form factor- PCB version 1.2- 66/100/133 MHz Front Side Bus support (FSB)- Supports for Coppermine & Tualatin core processors- Supports VIA C3 processors- Supports up to 1 GB SDRAM (PC133)- Two (2) dual-channel UDMA/100 IDE controllers- One (1) dual-channel floppy disk controller- Integrated video- Integrated AC'97 audio CODEC- Integrated Ethernet controllerExpansion Slots:- One (1) AMR slot- Three (3) PCI slots- One (1) ISA slot (shared with one PCI slot)- Two (2) 168-pin DIMM slotsI/O Ports:- Two (2) PS/2 ports- One (1) 15-pin standard VGA connector- One (1) 9-pin standard serial port- One (1) 25-pin standard parallel port- One (1) 15-pin standard game/MIDI port- Two (2) USB ports- One (1) RJ-45 standard Ethernet jack- Line-in, microphone and line-out jacksHardware Monitor Functions:- CPU fan speed- System temperature- System voltageSupported Processors:- Intel Pentium III Socket 370 processors up to 1.4 GHz- Intel Celeron Socket 370 processors up to 1.3 GHz- VIA C3 Socket 370 processors up to 933 MHzIntel PIII 866 MHz 133 MHz 256 KB Socket 370 CPU Features:- Intel Pentium III processor- 866 MHz speed- 133 MHz Front End Bus Speed- 256 KB L2 cache- Socket 370 Flip Chip Plastic Pin Array (FC-PGA) DesignSocket 370 Heat Sink and Fan up to 1.3 GHz Features:- Aluminum heat sink- CPU Cooler for Socket 370 processors up to 1.3 GHz- 2.5-inch x 2.5-inch Fan- 3-pin fan connector (approximately 7-inches cord length from fan to 3-pin connector)- Metal mounting clip- Easy Installation and Release- Reduces CPU temperature- Extends CPU's lifePackage Includes:- Biostar M6VLR mATX motherboard- One (1) 40-pin, 80-wire IDE cable- One (1) floppy disk cable- Driver CD- Application Pack CD- Intel PIII 866 MHz 133 MHz 256 KB Socket 370 CPU- Socket 370 Heat Sink and Fan up to 1.3 GHzNote:- Biostar motherboard does NOT have an AGP slot- Biostar model: M6VLR-A027- CPU is refurbished and the rest are new- Items are package in a plain box for shipping Compatibility/Requirements/Disclosures:** Requirements *** ATX case* ATX power supply* Supported RAM* Rest of system More ...
3-Piece 2.1 Channel MultiMedia Speaker System3-Piece 2.1 Channel MultiMedia Speaker System ** 3-Piece 2.1 Channel MultiMedia Speaker System **This SP-330 3-piece 2.1 Channel MultiMedia SubWoofer Speaker system is ideal for audio sources such as a Walkman, Cassette Player, CD-Player, Sound card, MP3 players and more! Order yours today!General Features:- Silver profile- Active separating circuits for frequencies- Reinforced module structure- Magnetically shielded- Rotating satellite speakers- In-line remote control- 120 – 240 V ~ 50/60 Hz power specificationsSpecifications:- Frequency Response: 40 Hz - 160 Hz (SubWoofer),- 4-inch driver subwoofer - Frequency Response: 100 Hz - 20 KHz (Satellite)- Two (2) 2.5-inch full range driver- One (1) 2-inch tweeter- Control Panel: Power/VolumeSize:- Two (2) Satellite Speakers: 3.5 x 9.25 x 3.5-inches (W x H x L approximate)- One (1) SubWoofer: 5.5 x 9.5 x 10.75-inches (W x H x L approximate)Package Includes:- One (1) SubWoofer Speaker Unit- Two (2) Satellite Speakers- Manual Compatibility/Requirements/Disclosures: ** Requirements *** Audio source with stereo mini-din jack* Available power outlet More ...
USB VoIP Multi-Audio Adapter w/Handset (Purple)USB VoIP Multi-Audio Adapter w/Handset (Purple) ** USB VoIP Multi- Audio Adapter w/Handset & USB Cable **Enjoy stereo music or make Internet phone calls! ThisMulti-Audio Adapter works as a sound a card as well as a VoIP device. Simply plug into an available USB port. The included handset makes it simple to make an internet phone call, and its slim and lightweight design makes it easy to carry anywhere. Order yours today!General Features:- Translucent Purple- Slim and Lightweight design- USB 1.1 interface- Works as a sound card or a VoIP device- Works with portable earphone or earphone /microphone set- Uses regular headset to make Internet phone calls- HID (Human Interface Device) feature- Plug and Play- PID (Physical Interface Device) Feature- Compatible with PC to PC Internet phone application software- LED power and link statusConnectors:- RJ-11 phone jack- One (1) 2.5mm Earphone jack (Earphone-Microphone of Motorola recommended)- One Set of Line in and Line out jacks for Headset and Speakers or other Multi-Operation- USB Type B connectorCompatible Applications:- Microsoft NetMeeting- Yahoo Messenger- Crystal VoiceLive- Microsoft MSN Messenger- MediaRing- Skype- Net2Phone- DialpadUnit Dimensions:- 0.82 x 1.45 x 3.5-inches (H x W x D)- Weight: 30 g (0.066 lbs)Regulatory Approvals:- FCC- CERetail Package Includes:- USB VoIP Multi-Audio Adapter- Phone Headset - USB extension cableNotes:- EAN Code: 4 710743 100153 Compatibility/Requirements/Disclosures: ** Requirements *** Pentium 233 MHz or higher* Wnidows 98SE/ME/2000/XP* 128 MB RAM or higher* Available USB port* Broadband or 56 Kbps analog modem More ...
4 Compartment Travel Case by Soren4 Compartment Travel Case by Soren ** 4 Compartment Travel Case by Soren **General Features:- Adjustable and detachable shoulder strap with padding for comfort.- Back compartment contains removable, padded deluxe computer sleeve with pockets for CD-Roms, and disks; and a divided butterfly gusseted fan file system.- Front pocket padded to protect calculators, PDA's and other fragile items.- Front storage and interior panel pockets keep business and computer accessories organized.- Large nylon, self-healing coil zippers for instant repair.- Nylon web sleeve allows brief to slide easily over and upright handle system.- Pager loop for beepers and sunglasses.- Main compartment expands 2.5 (Shown expanded and normal widths).- Ballistic Nylon Exterior- Size: 17 x 11 x 8 - Computer Dimensions: 13 x 9 x 1.50 - Linear inches: 36 Notes:- New More ...
ALI 5-Port USB 2.0 PCI CardALI 5-Port USB 2.0 PCI Card ** ALI 5-Port USB 2.0 PCI Card **This ALI chipset USB 2.0 host controller card is compliant with all USB 1.1 & USB 2.0 devices. Allowing the latest compatible digital cameras, digital camcorders, MP3 players, external storage devices and peripherals transfer speed up to 480Mbps. Connects to (4) external devices and (1) internal to front USB port. General Features:- ALI (M5273) PCI to USB 2.0 host controller chipset- (4) external + (1) internal USB 2.0 ports- Compliant with Universal Serial Bus Specification Revision 0.95, Revision 1.1 AND Revision 2.0- All downstream ports can handle Hi-Speed (480Mbps), Full-Speed (12Mbps) and Low Speed (1.5Mbps)- PCI Bus-Master Access- Full support of real time dynamic insertion and removal of devices- Supports all USB compliant peripherals- Driver support for Windows 98, 98SE, ME, 2000 & XP operating systems Retail box includes:- One ALI USB 2.0 PCI Card- One User Guide- One Driver CD discCompatibility/Requirements/Disclosures:** Requirements *** Microsoft Windows 98SE/2000/ME/XP* Available PCI slot* CD-ROM drive More ...
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