Q-1 Do as Directed. 1. Two Tables Must Have A

8/14/2019 Q-1 Do as Directed. 1. Two Tables Must Have A

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BDP

2005Q-1 Do as directed.

1. Two tables must have a common key to establish a relationship.

[True]

2. We can create a table in datasheet view. [True]

3. Every record in the sequential file must process a key field.

[False]

4. A data base is a collection of objects in the MS-Access.

5. What is a master file?

a. Particular data file that have permanent nature is

as master file.b. Some time master file can change, because so

designer put some field in it.

c. For example, A sale ledger account file.

d. Master file is always updated by only transaction file.

e. Master file have two sub types

(i) Static master file

(ii) Dynamic master file.

6. What is an audit file?

These files are particular type of transaction file that can

verify again and again. This file pay sum roll of computerize

account and traditional account, but computerize account

faster.

7. What is organization?

The first function involved in the processing of data is the orig

the

data to be Processed . Specifically, the nature , type and origin o

source document

must be determined. The source documents are those document produ

the

process of communicating within organization such as sales

order , purchase order.


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Q-2 (a) Attempt any two.

1. What is data processing? Explain the data processing cycle in

detail.

DATA PROCESSING CYCLE

There for we can find that data processing is the

restructuring, manipulation or

recording of data by people data by people or Machine , to increase

their usefulness andvalue for some particular purpose. The fundamental operation which are

carried out in any

data processing function are as stated below.

1. Origination

2. Input

Origination of dataData originated onSource DocumentsTime cards, sales orders,Purchase orders, involves

etc.

INPUT OF DATA

Data record in mediumsuitable for Input andhandling by data processingsystem, punch cards, floppydisk etc.

Processing of dataData entered in to the systemsand processed andstored.calculaed,composed etc.

Outout if informationSummerise, reports &Document prepare Outputconsisting of Printed or typeWritten form.

Storage of DataFling cabinet, Microfilm, floppy disk,disk magnetic tapsetc.


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3. Manipulation

4. Output

5. Storage

Organization.

The first function involved in the processing of data is the origthe

data to be processed . Specifically, the nature , type and origin o

source document

Must be determined. The source documents are those document produ

the

process of communicating within organization such as sales order , pu

order.

Input. The second function involved in the processing of data is in

data

stored on this documents in to the data processing system. The in

the

data processing system occurs when data stored in thwe docume

recorded

in some manner acceptable for entry in to data processing system.

Manipulation

Classifying : The classifying data involves the identification of like

according to one or more characteristics. For example, employee time

may be group by department, each employee time cards belongs to the

of the department.

Sorting. : After data is classified, it is usually necessary to arra

rearrange

The data in to some logical order to facilitate processing. This arrang

rearranging is called a sorting.

Verification of data: This involves checking its accuracy prior to submit

for processing.

Scanning: This involves searching for and assimilating facts about even

relationships in the organizations outside environment.


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Recording: Generally the processing of data provides intermediate resul

This intermediate result may be recorded until further processing.

instant

In the calculation of each employee net pay, intermediate results such gross pay, and taxes of the employee must be retained temporarily far

use.

Filtration: which is the screening out of extraneous data?

Indexing involves assigning codes to an item of data

within a reference system in order to facilitate the retrieval

of that data.

Output. After the various operations on the data have beencompleted, the delivery or communication of the information

or results must be carried out by

Reporting: which is the formal presentation and distribution

of processed data.

Issuance of documents,such as cheques, involves, and reports.

Retrieval, which is the fetching of a specific item or items of

stored information at the request of a user.

Storage. Finally, the results of the processing of data must

be retained for future use of reference. This function is

called storage.

All data-processing activites, therefore, follow a basic flow

pattern as shown below:


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2. What is electronic data processing? List its advantages and

disadvantages.

When system process on the data with the help of the any elec

device like(calculator,

mobile)it is called a electronic data processing(EDP).

Advantages.

1. Speed.

The computerization activities of a business organization help in proc

the data

placed in several data files in no time. This feature is possible due to th

speeds of

computers for processing data as CPU of the computer works at the speed

electricity

this is the highest ever attainable speed.

2. Accuracy

Data processed by utilizing the services of the property progr

computers in the

highly accurate. The programs check and apply control for it.

3. Flexibility.

The modern computer can be used for a verity of purposes. e.g. conc

batch and

processing , multi programming.

4. Reduce the space requirement

The use of compute for office activities reduce the requirements of o

DATA

INPUT

PROCESSIN

G

INFORMATION

OUTPUT


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Space which otherwise required.

5. Reduce manpower requirement.

The number of the person require for performing various organ

activitieswill be reduced by using a computer system.

6. Database.

The use of computer facility in the business organization facilit

establishment

such as a integer data records and data reducing.

7. Management Information.

Due to distinguished processing capacities of computer they can be provide

useful to information to management for control.

8. Storage capacity.

Large volume of data can be conveniently stored, assessed and altered

Disadvantages

1. Installing the computer requires a grueling and expansive task

of system analysis and design. There is a scarcity of computer

professionals to do this.

2. The initial investment can be very high trough this can be

mitigated to some extent by the rental terms and tax

concessions.

3. Since the lead time of installing is long and the hardware

technology is a rapidly advancing field , some of the

components may be rendered obsolete before even they are

installed.

4. The need to obtain by standby facilities in the event of break

down of any part of the computer system.

5. It is extremely difficult to obtained skilled the system s

analysis and programmers because of the increasing the demand

for them.


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3. Which are the various methods of data processing?

There are four various method of data processing.

Manual

Semi manual

Mechanical

Electronic.

Q-2 (b)

1. What is the data structure?

Ans. The way files and data records are organized is an essential part of

information processing. This organization is a hierarchy and consi

data base, files , data records and data items with data base being the hi

in the hierarchy and the data item being the lowest. In short

structure

is a one type of organization which is made by data base, files ,

records

and data items.

Diagram

Thus the structure of data storage is

File Records Data-items Characters.

2. Difference between system software and application software.

Ans. System software have system file. Those are located in the p

memory. [RAM,

ROM] Application software have application file. Those are located a

secondary

Memory [Hard disk, magnetic disk] These are the difference betwee

system software and application software.

Q-4(a) Define the following terms.

1. Look up wizard data type.


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Allows user to choose a value from the list. The list can be decided

or it can come from in the table. Access automatically validates data entry

on field data type. It will allow only number in a number field. Only dat

time in Date\Time field.

2. Filters.

A function that gives some group of data according to particular con

is known

as filters.

3. Foreign key.

In the relation ship of the table, primary key become as a foreign

Foreign key

To be valid, when the value must present in the one table. Primary key depend

on the foreign key.

Q-4 (b) Answer the following.

1. What is referential integrity? Why do we set referential integrity be

tables

when we set the relation ship.

Ans. You can make access check the validity of entry in a field that is a fo

key as it check the validity of the primary key fields. This is know as ch

for

referential integrity.

We can set referential integrity between to tables when we set the relation

Because a record in the many table whose foreign key does not refer th

record in

the one table is some time called Orphan records. If you select the Enfo

Referential integrity check box, Access will automatically make sure that

are no

orphan records in the many table Access will not let you :

Add a record to the related table unless it foreign key value matches the p

key of a record in the primary table.


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Delete the record from the primary table if there is the record in the relat

table that refer to it.

2. Which are the various type of Queries in the MS-Access? Explain any fo

Ans. There are different types of Query in the Access. Parameter Query

Append Query

Delete Query

Cross tab Query

Make-Table Query

Update Query

1. Append QueryTo add new records in an exiting table from Another table. Numb

fields and

even names of fields can be different.

2. Update Query

Change value in exiting records in the exiting table. You can do

search and

Replace, Use VB function to do complex update or ,Update one table to anot

3. Delete Query

Delete record that match those in another table: select table from

records

are to be deleted.

4. Make-Table Query.

These Query allows user to create a new table based on a condi

called make-table Query. This Query make table in a new name in the datab

Q-5(b)

1. It is a query which Query allows user to create a new table based

condition.


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[Make-table Query.]

2. It is an out output of a query.[Table]

3. It is the property which does not allow any field to be left blank. [Allow

lenth]

4. It is a data type which allows us to insert picture in a table.[OLE object5. It is a property which specifies how data will be displayed for a table.

Q-1 Do as Directed. 1. Two Tables Must Have A

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