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What is data cable?
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.
What is the maximum speed called that transmits data between two nodes on network node?
node speed
When is a database used?
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.
WHAT TASKS does dbms do?
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.
What consists of hardware software data and users?
the answer is simply a computer system :)
Which part of the eye transmits visual data?
The optic nerve transmits visual date from the retina to the brain.
One of the nine pins on a serial port transmits data in a sequence of bits and a second pin receives data?
RS232 DB9 connectors Receives data serially from Pin No. 2 & Transmits data from Pin No.3.
Difference between file processing system and database management system?
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.
Which of the following best describe the manipulation of data?
database management system that end users and programmers use to manipulate data in the database.
A computer that transmits data to another computer?
A server or a node
Nearly all NICs contain the device that transmits and receives data signals?
Data Transceiver
What are the 3 components of a system?
hardware, software,users..more on the components include: procedures and data
