What is a Database? Describe the advantages of a centralized database over separate files for specific applications.

Database is described in following points:

1. It takes less space for storing all data. If data for each application is stored in separate files, key fields must be kept in all the files and there by additional space is consumed. If separate data files are there for promotion of employees are retirement of employees, then the key field employee-id may have to be duplicated in both files. Similarly name of employees also should be duplicated.

2. It is easy to make modification in a single file rather than multiple files. When an employees quits the job, then his details should be removed from all files where ever it occurs. If it is a centralized file then it need to be deleted only from one file.

What is Transaction Processing in industry ? Describe the role of computer network in keeping track of transaction.

Transaction process systems are systems with massive data bases and many synchronous users that are executing data base transactions. Samples of such systems embody systems for reservations, banking, master card process, securities market etc. They need high availableness and quick time interval for many synchronous users. Electronic network is crucial to interconnect the many systems that are concerned in transactions. Whenever a dealing is performed, the small print of dealings are transferred to any or all the servers within the network and therefore the data bases within the server should be updated messages are send from the purpose wherever transaction takes place to any or all servers for change data bases in servers so data integrity is preserved.

What are Control Lines?

Control Lines are to receive signals that management varied operations chip. Basic memory operations are scan and write. Management Lines are to receive scan and write signals once scan signal is received, the contents of selected memory location is transferred into information lines. Once write signal is received, information from information lines is taken into selected memory location.


What are Data Lines?

Data lines are the lines through that knowledge is entered or taken out. If every memory location contain 'm' bits then the quantity of knowledge lines are going to be 'm'.

What are control lines? 

Pentium is a 32 bit machine? 

Role of Address lines in the architecture of the RAM of a computer?

Address lines are lines through that address of memory location (from wherever browse or write operator is to be performed) is given. Every memory location includes a distinctive address. If there are n address lines, then the amount of memory location is 2n. Address in address lines should be valid till write or browse operation is complete.