BASIC COMPUTER DESIGN

    HARDWARE COMPONENTS

  1. Memory unit with 4096 words of 16 bits each.
  2. There are 9 registers (AR,PC,DR,AC,IR,TR,OUTR,INPR and SC.
  3. There are 7   flipflops (I,S,E,R,IEN,FGI,FGO).
  4. There are 2 Decoders (3*8 Operation Decoder,4*16 TIMING DECODER)
  5. There are 16 bit common bus.
  6. CONTROL LOGIC GATES.
  7. ADDER and LOGIC CIRCUIT connected to the input of AC.

       DATABASE MANAGEMENT

         SYSTEM (DBMS)

    Database Management System is framework programming for making and overseeing databases. The DBMS gives clients and developers a deliberate approach to make, recover, overhaul and oversee information. A universally useful DBMS is intended to permit the definition, creation, questioning, redesign, and organization of databases. Understood DBMSs incorporate MySQL, PostgreSQL, MongoDB, Microsoft SQL Server, Oracle, Sybase, SAP HANA, and IBM DB2. A database is not for the most part compact crosswise over various DBMSs, but rather unique DBMS can interoperate by utilizing benchmarks, for example, SQL and ODBC or JDBC to permit a solitary application to work with more than one DBMS.

    Three components of DBMS-

    1)The physical database: the gathering of records that contain the information

    2)The database motor: the product that makes it conceivable to get to and alter the substance of the database

    3)The database plot: the determination of the consistent structure of the information put away in the database.

    Elements of a DBMS-

    A DBMS makes it workable for clients to make, alter and upgrade information in database records. Once made, the DBMS makes it conceivable to store and recover information from those database records.

    Simultaneousness: simultaneous get to (signifying ‘in the meantime’) to a similar database by different clients

    Security: security principles to decide get to privileges of clients

    Reinforcement and recuperation: procedures to go down the information frequently and recoup information if an issue happens

    Uprightness: database structure and guidelines enhance the trustworthiness of the information

    Information portrayals: an information word reference gives a depiction of the information.

    Advantages of DBMS-

    1)A DBMS gives robotized strategies to make, store and recover information. It might require some investment to set up these techniques, yet once set up, a DBMS can make monotonous manual assignments a relic of past times.

    2)A DBMS decreases information repetition and irregularity. Have you ever had diverse variants of a similar document on your PC hard drive? A similar thing happens in associations. An all around planned DBMS will take out repetition.

    3)A DBMS takes into account simultaneous access by different clients, each with their own particular part. A few clients just need to see the information, some add to including new information, while others outline and deal with the database – all in the meantime!

    4)A DBMS expands security and unwavering quality. Database directors are in charge of making reinforcements of databases, controlling access and, when all is said in done, ensuring it works the way it was planned.

    Four basics sorts of Database-

    1)Various leveled databases.

    2)Organize databases.

    3)Social databases.

    4)Protest arranged databases

                                                                                                                                                                                                             

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