system bus


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Related to system bus: Address bus, Control bus, Data bus

system bus

(1) The primary pathway between the CPU and memory. The speed is derived from the number of parallel channels (16 bit, 32 bit, etc.) and clock speed. Also known as a "frontside bus," it is faster than the peripheral bus (PCI, ISA, etc.), but slower than the backside bus. See peripheral bus, backside bus and Northbridge.

(2) The primary pathway between the CPU and peripherals. See peripheral bus.
References in periodicals archive ?
At next part of paper I would like to tell some information about data communication of each system bus. In the next phase of research I will try to disclose frequent errors during communication among devices on these bus systems.
(HYFS) recently announced the completion of Phase I of its Dallas County, TX School System Bus Fleet Conversion project.
Based on the Intel 955X chipset, this high-performance ATX form factor (12" x 9.5") board supports one Intel Pentium Processor Extreme Edition featuring two processing cores with a 1066/800/533 MHz system bus, 8GB ECC unbuffered DDR2-667/533/400 SDRAM, a user Over-Clock feature in the system BIOS, PCI-Express x16/x1, 3 32-bit PCI, 2 PCI-X 133/100, 4 SATA ports (3 Gbps), RAID 0, 1, 10 and 5, 8 USB 2.0 ports, onboard AC97 audio (front header), single PCI-Express Gigabit LAN, and U320 single-channel SCSI (PDSG4 only).
All are based on Intel's 90-nm manufacturing technology, utilize 478-pin packaging, and feature a 256KB Level 2 cache and 533 MHz system bus.
The new Intel Xeon processor at 3.20 GHz features a 1 MB cache and a 533 MHz system bus. It is designed for use in general-purpose servers for Web hosting, data caching, search engines, security, streaming media and high-performance computing, and in workstations for digital content creation, mechanical and electrical design, financial analysis and 3D modeling.
That is the same bandwidth that the main system bus for memory and CPU clustering in the prior generation of pSeries 680 S-Star based servers offered, and it is also the bandwidth of the system bus on the eight-way pSeries 655.
California-based Intel, the world's largest maker of the semiconductors that serve as the brains of personal computers and other electronics, said its new Pentium 4 chip, running at a clock speed of three gigahertz, will have an 800 megahertz system bus.
SCSI needs a fast system bus. The system bus has to be considered when introducing a new generation of SCSI, because controllers are either two or four channels.
For students and educators on-the-go, Apple has enhanced its iBook line of notebook computers with faster PowerPC G3 processors up to 600 MHz, a new system bus running up to 100 MHz, larger hard drives up to 20GB and 128MB of RAM.
Weighing just 2.2kg it comes with 64MB of PC100 SDRAM (upgradeable to 576MB), 500MHz PowerPC G3 processor, 66MHz system bus, 12.1ins TFT XXGA active-matrix display, 56k modem and CD ROM and it looks fab.
Built on PrimeArray's next-generation thin-server technology, Netserve and Serv-Station now incorporate high-speed processors, a faster system bus, greater memory expansion, and full-duplex 100-MB fast Ethernet.
An internal bus running at 600MB/second significantly reduces system bus overload.