The document provides an overview of information systems and information technology, defining key components and concepts of computer applications in the workplace. It discusses various types of computers, including personal computers, mobile devices, game consoles, servers, mainframes, supercomputers, and embedded computers, along with their functions and advantages. Additionally, it elaborates on the hardware components of computers and the essential roles they play in data processing and communication.

1. Computer Applications
The Information and Communication
Technology in workplace
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2. OVERVIEW
• Information System and Information
Technology
• The World of Computers
• The Component of Computers
• The Categories of Computers
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3. What is Information System?
“Information system (IS) is a system of
communication between people which is
involved in the gathering, processing,
distribution and use of information.”
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4. What is Information Technology?
“The information system supported with the use
of technology such as computing technology
and communication technology is called as
Information Technology (IT) or Information
Communication Technology (ICT)”
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5. The World of Computer
Computers are everywhere
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6. What is Computer?
• A computer is an electronic device, operating
under the control of instructions stored in its
own memory.
Information Processing Cycle
Collect Data
(Input)
Processing
Produces
Information
(Output)
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7. The components of a computer
• “A computer contains many electric,
electronic, and mechanical components
known as hardware”
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8. The components of a computer
Input Device
Output Device
System UnitStorage Device
Communication
Device
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9. The components of a computer
Input Device
• Allow you to enter data and instruction into a
computer
Output Device
• Hardware component that conveys
information to one or more people
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10. The components of a computer
System Unit
• Case that contains the electronic components
of the computer that are used to process data.
Storage Device
• Holds data, instruction, and the information
for future use
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11. The components of a computer
Communication Device
• Enables a computer to send and receive data,
instructions, and information to and from one
or more computers or mobile devices
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12. Advantages and Disadvantages of
using Computers
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13. Categories of Computers
• Personal Computers
• Mobile Computers and Mobile Devices
• Game Consoles
• Servers
• Mainframes
• Supercomputer
• Embedded Computer
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14. Personal Computers
• A personal computer can performs all of its
input, processing, output, and storage
activities by itself
• Two popular architectures are PC and the
APPLE.
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15. Mobile Computers
• Personal Computer that you can carry from
one place to another place
• Examples include notebook and netbook.
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16. Mobile Devices
• Computing device that small enough to hold
in your hand.
• Examples include smart phones, PDAs, and
digital camera.
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17. Game Consoles
• “Refer to the mobile computing device
designed for single player or multiplayer video
games.”
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18. Servers
“A server used to control access to the
hardware, software, and other resources on a
network.”
Provides a centralized storage area
for programs, data and information.
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19. Mainframes
“A mainframes is a large, expensive, powerful
computer that can handle hundred or thousand
of connected users simultaneously.”
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20. Mainframes computers
• Mainframes are used for problems which are
limited by input/output and reliability and
for handling multiple business transactions
concurrently
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21. Supercomputers
• A supercomputers is the fastest, most
powerful computer
• The fastest supercomputers are capable of
processing more than one quadrillion
instructions in a single second.
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22. Supercomputers
Supercomputers are used for scientific and
engineering problems which are limited by
processing speed and memory size.
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23. Embedded Computers
• “Refer to a special-purpose computer that
functions as component in a larger product.”
For examples:
1.Automobiles – Airbag Controller
2.Consumer Electronic – Answering machines/
Telephone
3.Computer Devices- Faxes, Printers and Copiers
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24. Computer Applications
The Information and Communication
Technology in workplace
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