What is AsyncApexJob object in Salesforce?

Hi Chanchal,

AsyncApexJob – It Represents an individual Apex sharing recalculation job, a batch Apex job, a method with the future annotation, or a job that implements Queueable.

BatchApex job represents an asynchronous Apex class using the Batchable interface via implements Database Batchable. Using Batch Apex allows for the asynchronous processing of a long running process on a large data volume by breaking the job into manageable chunks to be processed separately