A: chmod
The chmod command in Linux is used to add permissions for the user who owns the file to execute it. Many Linux operating systems inherit a strict ownership model from Unix. This implies that a user must have specific privileges and permissions in order to manipulate certain files. It is the work of the chmod command to change permissions.
Answer:
The management information system (MIS) is the computerized database that can be used various types of technology in order to store and record the data in the database for produce the effective information for making various decision in the business.The main purpose of MIS is that it is used for managing the feedback about the performance in the organization.
The first thing that need for managing to develop the management information system is that determine the access portion of the system for reviewing properly. It also help for getting the good ability about the work in an organization.
For example: Suppose the organization start developing the software that basically serve millions of user across the worldwide so the MIS helps by providing the proper plan and also analyze the each step of during the development of the software designing.
Answer: See explanation
Explanation:
A page table is used for the tracking and the location of different pages of a task in memory. It helps in showing the mapping of locations between the physical addresses and the virtual addresses.
A page table stores also has the page table entries and this is where the frame numbers are stored as well as the operational status.
Answer:
The function in Python is as follows:
def search_file(filename,mystring):
my_dict = {}
count = 0
file = open(filename)
lines = file.readlines()
for line in lines:
count+=1
if mystring.lower() in line.lower():
my_dict[count] = line.rstrip('\n')
return my_dict
Explanation:
This defines the function
def search_file(filename,mystring):
This initializes an empty dictionary
my_dict = {}
This initializes the number of lines to 0
count = 0
This opens the file
file = open(filename)
This reads the lines of the file
lines = file.readlines()
This iterates through the lines
for line in lines:
This increments the number line
count+=1
This checks if the string exists in the line
if mystring.lower() in line.lower():
If yes, the line number and the string are added to the dictionary
my_dict[count] = line.rstrip('\n')
This returns the dictionary
return my_dict
Answer:
Following are the types of installation matched to its respective definitions.
<h3>Upgrade installation:</h3>
What you do when you have a computer with an existing operating system that needs to be upgraded.
This means that while working on a window when you get attracted by the update introduced recently and you upgrade your window accordingly.
For example: Updating a window from 8 to 10 or desired features.
<h3>Multiple boot installation:</h3>
What you do when you have several operating systems on one computer.
In this type of installation, a computer has different windows for different accounts. You can boot to the desired installed window by switching account.
<h3>Clean installation:</h3>
What you do on a brand new computer that has never been set up before and does not have an operating system on it yet.
It can be defined as the installation of window done very first time on to the computer. Sometimes when the window gets deleted due to virus or any other factor, the installation at that time will also be termed as Clean Installation.
<h2>
I hope it will help you!</h2>
