theinfozones blog: November 2014

Multiple Choice Questions (For Online Practice)

Multiple Choice Questions For Practicing IT Knowledge.
For Preparing Computer Operator Examination.
For Lok Sewa Aayog Exam Preparation.
For Reminding IT Knowledge.
The contents may help students in their study and also be fruitful for the candidates preparing for the computer operator examination conducted by different organizations.
Multiple Choice Questions For English Grammar Practice.
Click Here To Go

Choose Correct Answer (Networking And Internet & Email)

Here are the some of the questions for practicing / reminding the networking and internet & email section. It is recommended to practice the same page till not confident on all the 10 questions.

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To Find The Greatest Number From N Number Supplied (Qbasic Code)

To Find The Greatest Number From N Number Supplied (Qbasic Code)

CLS
c = 1
h=0
INPUT "How many numbers do you want to enter"; n
FOR i = 1 TO n
    INPUT "Enter the number"; x
    IF x > h THEN
        h = x
    ELSE
    END IF
NEXT i
PRINT "The highest number is"; h
END

Next Method Using WHILE .... WEND

CLS
g = 0
c = 1
INPUT "Enter how many numbers you want to find"; t
WHILE c <= t
    INPUT "Enter the numbers"; n
    IF n > g THEN
        g = n
    END IF
    c = c + 1
WEND
PRINT "The greatest number among supplied numbers is "; g
END

To Add The N Numbers Entered

CLS
INPUT "How many numbers do you want to add"; n
FOR i = 1 TO n
INPUT "Enter the number you want to add"; x
s = s + x
NEXT i
PRINT "The sum of the numbers you entered is"; s
END

To Find The Sum From 1 to N (Qbasic Code)

CLS
INPUT "Enter the number upto which you want to add"; n
s = 0
FOR i = 1 TO n
s = s + i
NEXT i
PRINT "The sum is "; s
END

Next Method (Using DO WHILE ... LOOP)

CLS
INPUT "Enter the number upto which you want to add"; n
s = 0
c = 1
DO WHILE c <= n
s = s + c
c = c + 1
LOOP
PRINT "The sum is "; s
END

To Update The Marks

A sequential data file "std.dat" contains name, class and roll no., marks of english and science of a student. Make a program to update marks in english and science. (assuming only one record)
CLS
OPEN "std.dat" FOR INPUT AS #1
OPEN "temp.dat" FOR OUTPUT AS #2
INPUT #1, n$, cl, r
INPUT "Enter marks in english:"; en
INPUT "Enter marks in science:"; sc
WRITE #2, n$, cl, r, en, sc
CLOSE #1, #2
KILL "std.dat"
NAME "temp.dat" AS "std.dat"
END

To Find The Certain Record In A Data File

A sequential data file "std.dat" contains name, class and roll of a student. Make a program to display certain records in the file according to the roll no. supplied.
CLS
OPEN "std.dat" FOR INPUT AS #1
INPUT "Enter the roll number of the required student:"; rn
PRINT "Name", "Class", "Roll"
DO WHILE NOT EOF(1)
    INPUT #1, n$, cl, r
    IF r = rn THEN
        PRINT n$, cl, r
    ELSE
    END IF
LOOP
CLOSE #1

To Display All Records In The File.

File contains name, class and roll no., marks of english and science of some students.

CLS
OPEN "std.dat" FOR INPUT AS #1
PRINT "Name", "Class", "Roll", "English", "Science"
DO WHILE NOT EOF(1)
INPUT #1, n$, cl, r, en, sc
PRINT n$, cl, r, en, sc
LOOP
CLOSE #1
END

What is file mode? What are the modes of files in Qbasic?

The purpose of opening data file is called file mode.

The different modes of opening sequential data files are:

OUTPUT or "O" mode:

OUTPUT mode is used to create a new sequential data file. If the data file is already exists, it will erase all previous contents and new contents are added from the beginning of the file.

Example of OUTPUT mode: (Click)

APPEND or "A" mode:

APPEND mode is used to add more records in the existing sequential data file. It will add data from the end of the file.

Example of APPEND mode: (Click)

INPUT or "I" mode:

INPUT mode is used to open data file for reading data from existing file.

Example of INPUT mode: (Click)

PRINT# Statement

The PRINT# statement is used to store one or more data items to the specified file using either OUTPUT or APPEND mode.

Syntax:

PRINT # file number, data 1, data 2

WRITE #1, n$, roll

To Add More Records In File

File contains name, class and roll no., marks of english and science of a student.

Normal Program
CLS
OPEN "std.dat" FOR APPEND AS #1
INPUT "Enter name:"; n$
INPUT "Enter class:"; cl
INPUT "Enter roll:"; r
INPUT "Enter marks in english:"; en
INPUT "Enter marks in science:"; sc
WRITE #1, n$, cl, r, en, sc
CLOSE #1
END

To Display Records From File "std.dat"

File contains name, class and roll no., marks of english and science of a student.
CLS
OPEN "std.dat" FOR INPUT AS #1
INPUT #1, n$, cl, r, en, sc
PRINT "Name: "; n$
PRINT "Class: "; cl
PRINT "Roll:"; r
PRINT "Marks In English:"; en
PRINT "Marks In Science:"; sc
CLOSE #1
END

To Input Data In A File "std.dat"

A program to input the name, class and roll no, marks of english and science of a student and store in a sequential file "std.dat".
CLS
OPEN "std.dat" FOR OUTPUT AS #1
INPUT "Enter name"; n$
INPUT "Enter class"; cl
INPUT "Enter roll"; r
INPUT "Enter marks in english"; en
INPUT "Enter marks in science"; sc
WRITE #1, n$, cl, r, en, sc
END

To print the fibonacci series

Using FOR ..... NEXT

CLS
a = 1
b = 1
PRINT a;
PRINT b;
FOR i = 1 TO 8
    c = a + b
    PRINT c;
    a = b
    b = c
NEXT i
END

Using WHILE ..... WEND

CLS
i = 1
a = 1
b = 1
PRINT a
PRINT b
WHILE i <= 10
    c = a + b
    PRINT c
    a = b
    b = c
    i = i + 1
WEND
END

To Display Natural Numbers From 1 to 10 (Qbasic Code)

To Display Natural Numbers From 1 to 10 (Qbasic Code)
Using FOR ...... NEXT

CLS
FOR i = 1 TO 10 STEP 1
PRINT i
NEXT i
END

Using WHILE ..... WEND

CLS
c = 1
WHILE c <= 10
PRINT c
c = c + 1
WEND
END

Using DO WHILE ..... LOOP

CLS
c = 1
DO WHILE c <= 10
PRINT c
c = c + 1
LOOP
END

See also

To check entered character is vowel or consonant.

Normal Program:
CLS
INPUT "Enter any one character:"; a$
IF a$ = "a" OR a$ = "e" OR a$ = "i" OR a$ = "o" OR a$ = "u" THEN
PRINT "The entered character is vowel";
ELSE
PRINT "The entered character is consonant";
END IF
END

What is input mask?

It is a field property that allows to have control over data entry by defining validation for each character.

A field property which determines what type of data can be entered in the field as well as where data can be entered and how many characters are allowed is regarded as input mask.

What is formatting table?

Changing the default appearance of a table either by changing the height row or width of column, changing the fonts, colour etc is known as formatting table.

What is fragmentation?

As the uses of computers going on, there will be the process of adding new files, removing or deleting files occurs frequently. And this will cause some files to be unmanaged, i.e. the parts of some files may be scattered over different locations of the disk. These scattered parts of the same file over different location on the disk is said as fragmentation.

Fragmentation causes the slow access of disk, files and degrades the overall performance of the disk.

What is Scandisk?

The process of maintaining the disk files and folders using a kind of utility software by checking files, folders, bad sectors, lost clusters, lost chains and other errors of the specific disk is named as scandisk.

What is Internet Telephony?

Internet Telephony is a system that allows the users to make telephone call or voice call from one location to another location using the service of internet.

As advancement in technology, it is not only the way to use telephone to have communication, we can have further cheap and reliable way of communication than telephone. And internet telephony is one of them.

What is ISP?

ISP is Internet Service Provider. It is an organization that provides the services of internet to the users. Connection to the internet is possible only through ISP.

What is Intranet and Extranet?

Intranet: Intranet is a computer network maintained privately and that can be only accessed by the authorized persons of the organization that own the network.
An intranet is a private network that can only be accessed by authorized users. The prefix "intra" means "internal" and therefore implies an intranet is designed for internal communications. "Inter" (as in Internet) means "between" or "among."
Since there is only one Internet, the word "Internet" is capitalized. Because many intranets exist around the world, the word "intranet" is lowercase.

An intranet is based on the protocol TCP/IP.

Features of intranet:

It is closely related to the internet.
It runs on private networks within a company and among its branch offices.
It serves as a powerful tool for communication withing an organization.

Extranet: Extranet is a private network that uses the internet protocols network connectivity. It is a kind of computer network that allows the outside users to access the Intranet of organization. Extranet can be viewed as part of a company's intranet that is extended to users outside the company, usually via the internet.
The term Extranet is linked with Intranet. This network system is basically used for business to business (B2B) purposes. This system basically allows the outside users of an organization, like partners, suppliers, vendors and other stakeholders to remain in touch with the activities of organization.

Remove Skype History

When multiple users runs the same computer for Skype communication, there will be stored the login name of the users. Want to remove them?

How to remove user names in Skype history?
I want to delete my login history.
How to delete my account history?
How to remove user names from the log in screen?
How to remove usernames in the sing-in window?

When someone login to skype, it stores the username on its skype name text box. If multiple users do login on the same PC, then all the login data/history will be saved on it. So when other users try to login, all the login data is displayed. But there is no handy tool to remove the history. This can be an easy way to remove the history.

Here is the trick.

Click on the start button.
Click on run. (If run command is not on the list, hold on the window key and press r)
Type this '%appdata%\skype' on the run box.
Click ok.
A window will appear.
Here, delete the folder with the name you don't want to appear on the history.
Open skype and check. (the history will be removed).

How To Hide/Show Ribbon Bar In MS-Excel/Word/Access/Powerpoint?

The Ribbon as a part of the Microsoft Office Fluent user interface, is designed to help user quickly find the commands that they need to complete a task. Commands are organized in logical groups that are collected together under tabs. Each tab relates to a type of activity, such as writing or laying out a page. To reduce screen clutter, some tabs are shown only when they are needed. When the Ribbon is minimized, only the tabs are visible.

There is no way to delete or replace the Ribbon with the toolbars and menus from the earlier versions of Microsoft Office. However, user can minimize the Ribbon to make more space available on your screen.

How to Hide the ribbon?

To minimize the Ribbon, simply right click on any place of the Ribbon. A menu pop-up and check (click) the minimize the ribbon. The ribbon will be minimized.

How to Restore/Show the ribbon?

Now, if needs to restore or show the ribbon, simply right click on the menu bar or home button and click the minimize the ribbon to remove the check mark. The ribbon will be visible.

What is EPUB File and How to Open It?

EPUB is short for Electronic PUBlication. It is a free and open e-book standard by the International Digital Publishing Forum (IDPF). Files have the extension .epub.

A file with the EPUB file extension is an Open Publication Structure eBook file.

How To Open an EPub File?

An EPUB file can be opened using some of the following methods.

There are many popular viewers for EPUB such as,

FBReader
Adobe Digital Editions (Download)
Calibre (Download)
Aldiko
Booki.sh
BlueFire Reader
Books
MegaReader

It can also be opened inside the Firefox using the EPUBReader, a free add-on that lets to read the contents of any ePub book.

Determine The System Running (32 bit OS or 64 bit OS)

32 bit OS and 64 bit OS are two categories of operating software in Windows OS. So, there are also different versions of software (32 bit and 64 bit) for the 32 bit and 64 bit OS.

So, it should be determined which OS is running on the system before installing the software.

Check the running OS (Click Here)

Boot Windows From USB

Booting a computer from CD/DVD is sometime problematic. There may be the several problems like CD scratches, CD drive problem etc. So, it may be good choice to use USB boot option to boot the computer.

To boot from USB, some steps to be followed before making the USB bootable.

Have the ISO image file or problem free CD of windows.
Have a USB drive of minimum of the capacity that can store the entire boot files.
After these, have the software to prepare bootable USB. If don't have can be downloaded. (Click here to download)
Install the software.
Insert the USB disk on the USB port.
Run the software.
On the first step (i.e. Choose ISO file), Click Browse to locate the ISO file.
After locating the ISO file, Click Next.
On step Two (i.e., Choose Media Type.), select USB device.
On step Three (i.e, Insert USB device), choose the appropriate USB device.
Finally click Begin Copying.
It will take several minutes to copy the files (depending on the system).
After completing the copy, click start over.
Finally the USB is ready as bootable disk.
Now configure the BIOS to boot from the USB.

For Windows XP users
The following applications must be installed prior to installing the tool: