DATA PROCESSING OBJ:
An operating system (OS) is software that
manages computer hardware and software
resources and provides common services for
The operating system is an essential component
of the system software in a computer system
-it is the core of the coputer, without it computer
-operating systems schedule tasks for efficient
use of the system
A database is an organized collection of data.
The data is typically organized to model aspects
of reality in a way that supports processes
requiring information, such as modelling the
availability of rooms in hotels in a way that
supports finding a hotel with vacancies.
Database management systems (DBMS) are
computer software applications that interact with
the user, other applications, and the database
itself to capture and analyze data.
-Never store your documents on the same drive
as your operating system
-Back up your files regularly, no matter where
– Beware of email attachments
Data security means protecting data, such as a
database, from destructive forces and from the
unwanted actions of unauthorized users
(4bi) access control is the selective restriction
of access to
a place or other resource. The act of accessing
mean consuming, entering, or using. Permission
access a resource is called authorization.
5a) Open your browser eg Mozilla firefox, on the
address bar, type http://www.mybooks.com.
Scroll to Book W, click on it and the details with
price tag will appear. Do the same for books
(5b) Books: W,X,Y,Z,M
Prices in dollar ($): 2.00,4.00,6.00,8.00,10.00
Prices in Naira(#):
Then save as Prices of books.xls
Go to your email provider address from your
mozilla firefox by typing the address like thus;
http://www.mail.com. Then, login to your email
click on compose, on the the receipient column,
which you see as “to:”, enter your father’s
firstname.lastname@example.org, on the subject, write
of books”, then click on attach file, it will take
your computer folders, locate where you save
‘Prices of books.xls and double-click to attach
file, then click on ‘send’.