Information Technology, The Internet And You
Five Parts of an IS
System Software Programs
System Software and Application Software
| S.No. | System Software | Application Software |
| 1. | System software is used for operating computer hardware. | Application software is used by user to perform specific task. |
| 2. | System softwares are installed on the computer when operating system is installed. | Application softwares are installed according to user’s requirements. |
| 3. | In general, the user does not interact with system software because it works in the background. | In general, the user interacts with application sofwares. |
| 4. | System software can run independently. It provides platform for running application softwares. | Application software can’t run independently. They can’t run without the presence of system software. |
| 5. | Some examples of system softwares are compiler, assembler, debugger, driver, etc. | Some examples of application softwares are word processor, web browser, media player, etc. |
Computer Connectivity, The Wireless Revolution & The Internet and The Web
Connectivity is the capability of your microcomputer to share information
with other computers. The single most dramatic change in connectivity in
the past five years has been the widespread use of mobile or wireless communication
devices. For just a few of these devices, see Figure 1-16. Many experts
predict that these wireless applications are just the beginning of the wireless
revolution, a revolution that is expected to dramatically affect the way we
communicate and use computer technology.
Central to the concept of connectivity is the network or computer network.
A network is a communications system connecting two or more computers. The
largest network in the world is the Internet. It is like a giant highway that connects
you to millions of other people and organizations located throughout the
world. The Web, also known as the World Wide Web or WWW, provides a
multimedia interface to the numerous resources available on the Internet.
Four Common File Types
- Document files, created by word processors to save documents such as
memos, term papers, and letters.
- Worksheet files, created by electronic spreadsheets to analyze things like
budgets and to predict sales.
- Database files, typically created by database management programs to
contain highly structured and organized data. For example, an employee
database file might contain all the workers’ names, social security numbers,
job titles, and other related pieces of information.
- Presentation files, created by presentation graphics programs to save presentation
materials. For example, a file might contain audience handouts,
speaker notes, and electronic slides.