Post on 30-May-2018
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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.