What is bus and its types in computer organization?
A bus is a high-speed internal connection. Three types of bus are used. Address bus – carries memory addresses from the processor to other components such as primary storage and input/output devices. The address bus is unidirectional . Data bus – carries the data between the processor and other components.
How does single bus structure work?
In a single-bus architecture, all components including the central processing unit, memory and peripherals share a common bus. When many devices need the bus at the same time, this creates a state of conflict called bus contention; some wait for the bus while another has control of it.
How many type of buses organizations for internal data movement among registers and between the ALU and registers?
Internal data movement among registers and between the ALU and registers may be carried out using different organizations including one-bus, two-bus, or three-bus organizations. Dedicated datapaths may also be used between components that transfer data between themselves more frequently.
What is the main virtue of using single bus structure?
Explanation: By using a single BUS structure we can minimize the amount of hardware (wire) required and thereby reducing the cost.
What is bus interconnection in computer architecture?
A bus is a communication pathway connecting two or more devices. A key characteristic of a bus is that it is a shared transmission medium. Multiple devices connect to the bus, and a signal transmitted by any one device is available for reception by all other devices attached to the bus.
What is common bus system in computer architecture?
The basic computer has eight registers, a memory unit, and a control unit . Paths must be provided to transfer information from one register to another and between memory and registers. A more efficient scheme for transferring information in a system with many registers is to use a common bus. …
What is the main advantage of multiple bus organization over a single bus?
Discussion Forum
| Que. | The main advantage of multiple bus organisation over single bus is |
|---|---|
| b. | Increase in size of the registers |
| c. | Better Connectivity |
| d. | None of these |
| Answer:Increase in size of the registers |
What is single datapath?
Single Cycle Datapaths : Single Datapaths is equivalent to the original single-cycle datapath The data memory has only one Address input. The actual memory operation can be determined from the MemRead and MemWrite control signals. There are separate memories for instructions and data. The control signals are the same.
Which register in the processor is single directional?
Which register in the processor is single directional? Explanation: The MAR is single directional as it just takes the address from the processor bus and passes it to the external bus. Explanation: These registers are usually used to store temporary values.
What is the main advantage of multiple BUS organization over the single BUS?
What are the different types of buses used in a computer?
• Today all computers utilize two types of buses, an internal or local bus and an external bus. • An internal bus enables a communication between internal components such as a computer video card and memory (e.g. ISA, EISA, PCI, AGP, etc.) and an external bus is capable of communicating with external components such as a SCSI bus, GPIB, etc.
What is the function of the control bus?
• The control bus consists of 4 to 10 parallel signal lines. • The CPU sends out signals on the control bus to enable the outputs of addressed memory devices or port devices. • Typical control bus signals are Memory Read, Memory Write, I/O Read, and l/O Write.
How many signal lines are there in a control bus?
Control Bus The control bus consists of 4 to 10 parallel signal lines. The CPU sends out signals on the control bus to enable the outputs of addressed memory devices or port devices. Typical control bus signals are Memory Read, Memory Write, I/O Read, and l/O Write.
How many lines are there in the address bus?
Address Bus. • The address bus consists of 16, 20, 24, or 32 parallel signal lines. On these lines the CPU sends out the address of the memory location that is to be written to or read from. • The number of memory locations that the CPU can address is determined by the number of address lines.