The document provides an overview of information systems, defining them as software that organizes and analyzes data for decision-making in organizations. It outlines the components of information systems, including hardware, software, databases, networks, procedures, and people, and explains the role of information technology (IT) in business operations. Additionally, it describes the broad field of computer science, highlighting various roles and specialties within the industry.

1. INFORMATION SYSTEMS,
INFORMATION TECHNOLOGY
AND COMPUTER SCIENCE

2. INFORMATION SYSTEMS
•An Information System (IS) is defined as the
software that helps organize and analyze data.
So, the purpose of an information system is to
turn raw data into useful information that can be
used for decision making in an organization.

3. INFORMATION SYSTEMS
•an information system is a system composed of
people and computers that processes or
interprets information. The term is also
sometimes used in more restricted senses to
refer to only the software used to run a
computerized database or to refer to only a
computer system.

4. COMPONENTS OF INFORMATION SYSTEMS
• Hardware
The term hardware refers to machinery. This category includes
the computer itself, which is often referred to as the central
processing unit (CPU), and all of its support equipment.
Among the support equipment are input and output devices,
storage devices and communications devices. Computer-
based information systems use computer hardware, such as
processors, monitors, keyboard, and printers.

5. COMPONENTS OF INFORMATION SYSTEMS
• Software
The term software refers to computer programs and the manuals
(if any) that support them. Computer programs are machine-
readable instructions that direct the circuitry within the
hardware parts of the system to function in ways that produce
useful information from data. Programs are generally stored on
some input / output medium, often a disk or tape. These are the
programs used to organize, process and analyze data.

6. COMPONENTS OF INFORMATION SYSTEMS
• Databases
Information systems work with data organized into tables and
files. Data are facts that are used by programs to produce
useful information. Like programs, data are generally stored in
machine-readable form on disk or tape until the computer
needs them.

7. COMPONENTS OF INFORMATION SYSTEMS
•Network
Different elements need to be connected to each other,
especially if many different people in an organization
use the same information system.

8. COMPONENTS OF INFORMATION SYSTEMS
•Procedures
Procedures are the policies that govern the operation
of a computer system. "Procedures are to people what
software is to hardware" is a common analogy that is
used to illustrate the role of procedures in a system.
These describe how specific data are processed and
analyzed in order to get the answers for which the
information system is designed.

9. COMPONENTS OF INFORMATION SYSTEMS
•People
Every system needs people if it is to be useful. Often
the most over-looked element of the system is the
people, probably the component that most influence
the success or failure of information systems.

10. INFORMATION TECHNOLOGY
• Information technology (IT) is the use of computers,
storage, networking and other physical devices,
infrastructure and processes to create, process, store,
secure and exchange all forms of electronic data.
Typically, IT is used in the context of business
operations, as opposed to the technology used for
personal or entertainment purposes. The commercial
use of IT encompasses both computer technology and
telecommunications.

11. TYPES OF INFORMATION TECHNOLOGY
1.Artificial Intelligence (AI)
2.Big Data
3.Computer Support
4.Cybersecurity
5.Data Analytics
6.Database
Administration
7.Database Architecture
7. DevOps
8. Information Systems
Management
9. Machine Learning (ML)
10. Network Administration
11. Network Security
12. Robotics
13. Software Development
14. Software Testing
15. Web Development
16. Web Design

12. COMPUTER SCIENCE
Is the study of computers and computational
systems. It is a broad field which includes
everything from the algorithms that make up
software to how software interacts with
hardware to how well software is developed
and designed.

13. COMPUTER SCIENCE INCLUDE:
• Computer Programmer
• Information Technology Specialist
• Data Scientist
• Web Optimization Specialist
• Database Administrator
• Systems Analyst
• Web Developer
• Quality Assurance Engineer
• Business Intelligence Analyst
• Systems Engineer
• Product Manager
• Software Engineer
• Hardware Engineer
• Front-End Developer
• Back-End Developer
• Full-Stack Developer
• Mobile Developer
• Network Administrator
• Chief Information Officer
• Security Analyst
• Video Game Developer
• Health Information Technician