Q07. What are Application (executable) files?
Answer
The files that contain programs are called Application (executable) files. If we double click on an executable file then it will run the program within it. Application files are different from data files. Application files run programs while data files show data within it supported by any program such as word processor or spreadsheet program.
Q08. Write the steps to make a file read-only.
Answer
The steps to make a file read-only are as follows-
1. Right click on the file that we want to make read-only.
2. Select Properties command from the popup menu which will display the Properties dialog box.
3. In the Attributes section click on the Read-only check box.
4. Click OK button. This will confirm the file as read-only.
Q09. Write the steps to copy and move any file using keyboard.
Answer
The steps to copy a file using keyboard are as follows-
1. First select the file that is to be copied.
2. Press Ctrl+C. This will copy the file on the Clipboard.
3. Press Ctrl+V where we want to make a duplicate of the file. This will paste the item there from the Clipboard.
The steps to move a file using keyboard are as follows-
1. First select the file that is to be moved.
2. Press Ctrl+X. This will move the file on the Clipboard.
3. Press Ctrl+V where we want to move the file. This will paste the item there from the Clipboard.
Q10. Write the steps to search a file by date.
Answer
The steps to search a file by date are as follows-
1. Open the Search Window by clicking the Search command in Start menu.
2. Click on Advanced Search button. Some advanced options will appear.
3. Click on the down arrow to the right of the Date section and select Date Modified or Date Created.
4. Choose an option from the drop down list after clicking the down arrow to the right of the Any section.
5. Select a date a few months before today’s date from the next box.
6. Type the file name in the Name section and click the Search button. This will provide us results of files that contain the search word as their file name.
Q11. What are the wildcards used for searching any file?
Answer
A wildcard is a symbol that takes the place of an unknown character or set of characters. Commonly used wild-cards are the Asterisk ( * ) and the Question Mark ( ? ).
The Asterisk ( * )
The asterisk represents any number of unknown characters. We use it when searching for documents or files for which we have only partial names.
For example, if we enter cheese* as search term, the search might return these items: cheese, cheesecake, cheesedip.txt
The Question Mark ( ? )
The question mark represents only one unknown character. We use it when we have a list of files with very similar names, or when we are unsure of a few characters.
For example, if we enter take?.txt as search term, the search might return these files: take1.txt, taken.txt, take2.txt
Q12. What is file compression? How can you compress and decompress a file?
Answer
File compression
File compression is the way by which we make the size of files smaller. This is useful to save space on a disk or sending a file as an email attachment.
Compressing files