Network
Just as electric cable transmits electric line power from the transmission center to receiving station so the data cable in digital communication transmits the encoded binary digits from a digital transmission system to a digital receiving system.
node speed
A Database is a organized collection of inter-connected data items. It is a collection of persistent data (or information). You need Database when you want to share data of all kinds between users, between tools working on them, between computers. Either it might be a different users or other applications, everyone can access the same set of Data. We need a reliable storage system which can guarantee the health of Data. Several users/applications must be able to safely access the same data concurrently. You can use large amount of data efficiently. there are many more reasons Security, protection, we can restrict the users to certain levels, etc.
A Database Management System or DBMS provides the interface between users and a database. Some of its tasks include: data integrity, security, recovery of data, support concurrent updates and update data.
the answer is simply a computer system :)
The main components of the system bus include the data bus, address bus, and control bus. The data bus carries the actual data being transferred between components, the address bus specifies the memory locations or device addresses involved in the transaction, and the control bus transmits control signals to coordinate and manage the operations of the system. Together, these buses facilitate communication between the CPU, memory, and peripheral devices.
The optic nerve transmits visual date from the retina to the brain.
RS232 DB9 connectors Receives data serially from Pin No. 2 & Transmits data from Pin No.3.
In file processing system a permanent system file is created for every new object. Application softwares are used to manipulate these files. SO characteristics (Some of them became its drawbacks) of file processing system are:- 1)Data redundancy and inconsistency 2)Difficulty in accessing data 3)Data isolation ie. data is in different formats and files. In database system these issues where addressed, by data abstraction. In DBMS, data is stored using 3 levels of abstraction 1)Physical Level : How data is stored 2)Conceptual level : What data is stored, relationship between data 3)View Level : What is visible to different users.
A server or a node
Data Transceiver
database management system that end users and programmers use to manipulate data in the database.