A single file can be used to record/ store all the information regarding a transaction because in a transaction there are less complexities. a simple transaction involves an exchange/communication between a buyer and a seller which involves exchange in finances between the buyer and the seller.
An employee can be involved in several activities like work activities and multiple transactions while a single inventory part record is different from an employee's record and any other form of transaction. hence separate files have to be created for each of these activities.
To have an easy access to this information when needed a master file is created to store all the individual files.
Binary information must be encoded in some way before transmission over the Internet. ... Copper wire is used to transmit binary messages using electricity - a voltage on the wire means one state, and no voltage means the other. Fiber-optic cables, on the other hand, use light (on or off) to transmit a binary message.
