What are buses? Explain all its types in 3-4 lines.
Answers
What are buses:
(i) These are set of parallel lines that are used to connect two or more components of a computer. These lines do send information in parallel.
(or)
Collection of wires through which data is transmitted from one part of a computer to another.
(ii) A Computer system may contain a number of different buses.
(iii) In order to reduce the number of pathways needed for communication by carrying out over a single data channel, these buses are used.
(iv) Clock speed is measured in MHz or GHz.
Types of buses:
(i) Data bus:
⇒ It connects all the computer components to the CPU and the main memory.
⇒ It contain parallel group of lines.
⇒ The size of the bus defines How many bits it can transfer at a time.
Ex: A 32-bit address can transmit 32 bits of data at a time.
(ii) Address bus:
⇒ It sends a memory address along the bus from the CPU to the memory.
⇒ It transfers information about where the data should go (or) it specify memory locations for which the data being transferred.
⇒ Each component is assigned a unique ID. If a component wants to communicate with another component, it uses address bus to specify the address of that component.
⇒ It is measured by the amount of memory it can retrieve.
Ex: A system with a 16-bit address bus can address 64 KB of memory space.
(iii) Control Bus:
⇒ It carries control information from the CPU to the other units within the computer.
(or)
It transmits different control signals from one component to another component.
⇒ It carries out the commands from the CPU and report status messages from other various devices.
⇒ The control signal specifies the time for which a device can use data and address bus because data and address lines are shared by all the components.
⇒ This Control bus is used to indicate the activities of CPU i.e whether it is reading from memory or writing to memory.
Advantages of bus:
(i) Speed and Efficiency
(ii) Compatibility.
Hope this information helps!
Here is your answer ☺️☺️❤️❤️
Inside computer there are many internal components. In order to these components communicate with each other they makes use of wires that are known as a bus.A bus is a common pathway through which information flows from one computer component to another. This pathway is used for communication purpose.
The internal bus carries the data within in the motherboard. External buses carries data to peripheral and other devices attached to the motherboard.
The lines or the pins of buses are of three types :
❤️Adress - the component pass memory adress to one another over the Adress bus.
❤️Control - used to send out signals to coordinate and manage the activities of motherboard components.
❤️Data - transfer between peripheral memory and the CPU. The data bus is a very busy pathway.
Hope this helps you ☺️☺️❤️❤️
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