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Why does the address bus go to all the devices in the computer?
Wiki User
∙ 10y ago
In simple and traditional small computers, many devices share the same address bus, and must thus all be connected to the same address bus. Each device is designed or configured to claim a certain range of addresses, so that multiple device can share the same address, data and control busses. These devices include the CPU, parallel memory for RAM and ROM (or other parallel memory types). Generally also connected are devices to control video and mass storage devices (floppy disk drives, hard disks, etc).
However, modern computer designs are much more complex, and generally include several different parallel and serial bus systems, each with their own method of addressing participants. For example, a serial ATA (SATA) hard disk is connected to a serial bus, which includes methods of communicating address, data and control information. This address bus is different from the parallel address bus used to access RAM, which in turn might be different from the address, data and control busses used to access the video components. A typical modern PC design uses several internal bus systems (and, therefore, addressing methods and "busses").
Wiki User
∙ 10y ago
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What is Synchronous and asynchronous computer bus timing?
asynchronous bus A bus that interconnects devices of a computer system where information transfers between devices are self-timed rather than controlled by a synchronizing clock signal.
What does bus mean in electronics?
A bus is a group of wires, of a number that is compatible with the size of data that the computer works with. If the computer works in bytes then the bus would have to be 8 wires wide. If the computer works in Words then the bus would have to be 16 wires wide. If the computer works in double Words then the bus would have to be 32 wires wide. and so on. This allows the computer to send a 'block' of related information at a time. Now there are several different devices in a computer's hardware that may all work with the same size of data. So it would (or does) make sense to use one bus for all such transfers between these devices, otherwise you would have a lot more wires in a computer than what you really need. So devices share the bus. Only the source and destination device are enabled for use at the same time while all other devices are disabled.
How computer recognize all the devices when multiple devices are connected to a universal serial bus port simultaneously?
Simply put each of the USB Devices is assigned it's own address and the computer merely cycles between them when the devices is needed in a similar way to many computers being able to use one network broadband connection. This is a very simplified explanation, there are a lot more details involved.
Why bus called bus?
Well a bus is a circuit that connects the CPU with other devices in a computer. So i i assume its much like a bus line.
All devices that connect to the computer are attached to what kind of bus?
Well, the USB (universal serial bus) is a type of bus, but everything doesn't connect with one.There is also serial ports, sound jacks, and all that other fun stuff.
What is the paths or inteconnections the computer uses to transport data from the one component to another?
A bus. (Bus - a path for devices and computer components to communicate with one another.)
Function of system bus?
A system bus is a single computer bus which historically was used to connect all the major parts of the computer. It combined the jobs of a data bus, address bus, and a control bus. Over the last 30 years, computers have tended to use separate specialized buses instead of a system bus.
What is computer bus system?
A group of lines that serves as a connecting path for several devices is called bus.In addition to the lines that carry the data, the bus must have lines for address and control purposes.
What is a bus specify the function of address bus and direction of information flow on the address bus?
A bus is a collection of conducting wires which connect the processor and other devices in parallel scheme. The function of an address bus is to carry the address of the memory locations from the processor to the memory device, the address bus is unidirectional(only in one direction) in this processor so the flow of information on this bus is from the microprocessor to the attached device(memory module).
What is an external bus?
In computers, the bus is the subsystem that transfers data between internal parts of the computer, or from internal parts of the computer to external parts, or between two computers. External bus can be parallel (ATA (and all of its derivations), IEEE-488, SCSI) or serial (USB, FireWire, etc.).
Why is data bus bidirectional but address bus unidirectional?
The address bus is unidirectional becos address information is always given by microprocessor to i/o devices. The data bus is bidirectional bcos it takes the data from other devices & also give the data to other i/o devices
What is the purpose of an address bus?
The address bus is used by the processor in a computer to locate a piece of data from the RAM (Random Access Memory) that it needs to access. No real data is carried via the address bus, as this is the job of the Data Bus. The pieces of data that the address bus locates are called "addresses" and the address bus transfers "data addresses" to and from the control unit.
