GPDR113 – Introduction to Information and Communication Technology Study Notes

The Advent of the Information Society

Overview

  • Course Title: GPDR113 – Introduction to Information and Communication Technology

  • Department: ICT Education

  • Faculty: Science Education

  • Institution: University of Education, Winneba

The Information Society

  • Introduction to the Concept

    • John Nesbitt's "The Megatrends" (1984):

    • Introduces the concept of the "INFORMATION SOCIETY".

    • Defined as a society where the majority of workers are involved in the transmittal of information.

    • Time Magazine (1982):

    • Named the computer "Machine of the Year", signifying the computer’s “coming of age”.

Economic Transitions

  • Economic Era and Resources

    • Categorized into three: Agrarian, Industrial, Information.

Economic Transition Table

  • Classifications

    • Agrarian Era:

    • Primary Resource: Land

    • Transforming Agent: Natural Energy

    • Tools Needed: Plough, Hoe, Farm Equipment

    • Skills Needed: Ploughing, Tilling, Sowing

    • Industrial Era:

    • Primary Resource: Capital

    • Transforming Agent: Processed Energy (Oil, Coal, Hydro)

    • Tools Needed: Machines

    • Skills Needed: Technical Engineering, Management

    • Information Era:

    • Primary Resource: Mind

    • Transforming Agent: Knowledge

    • Tools Needed: Computer

    • Skills Needed: Computer Literacy, Information Literacy

What is a Computer?

  • Definition of a Computer:

    • A computer is an electronic device that:

    • Accepts data

    • Processes the data

    • Stores the processed data

    • Produces results as information

    • Operates under the direction of a stored program of instructions (software).

    • Known for its speed and accuracy.

The Digital and ICT Revolutions

  • Impact of Technological Advancements

    • Revolutionized communication and the spread of information.

Landmark Developments in Communication Technology

  • 1875:

    • Invention of the telephone by Alexander Graham Bell enabled communication through sound.

  • 1910-1920:

    • First AM radio stations began broadcasting sound.

  • 1940s:

    • Television started broadcasting both sound and visuals.

  • 1943:

    • Creation of the world’s first electronic computer.

  • 1970s:

    • Invention of the microprocessor made computers accessible to the public.

  • 1990s:

    • Internet transitioned from universities and research institutions to corporate headquarters and households.

The Digital Revolution

  • Transition from Analog to Digital

    • Early technologies utilized analog transmission, involving a combination of light and sound waves for message transmission.

    • Example: The telephone used analog transmission.

    • Late 1940s:

    • Introduction of pulse-code modulation (an encoded signal of pulses) marked the beginning of digitization in telecommunications.

    • 1961:

    • Installation of the first digital carrier system in the U.S.

    • Digitization led to a reduction in the need for telephone operators, replaced by digital switches.

Advancements in Digital Communication

  • 1971:

    • First fiber optic cables suitable for communication were developed.

    • Initiations in sending communication signals via light waves; light-wave transmission systems are inherently digital.

  • 1989:

    • “Ones and zeros” became the language of telephone networks in the U.S.

  • Today:

    • Voice is transformed into data packets, transmitted over networks to remote locations, where they are reconverted back into voice.

Consequences of Digital and ICT Revolutions

  • Societal Impact

    • Improved and cheaper access to knowledge and information.

    • Accelerates transactions and processes, reducing costs, benefiting citizens and consumers.

    • Allows for interaction over distances in new ways - distance is rendered insignificant.

Emergence of Information Economy

  • Definition:

    • An information economy relies on the productivity and competitiveness of economic agents (firms, regions, nations) being contingent on their ability to efficiently generate, process, and apply knowledge-based information.

    • Pervasive use of ICT renders information readily available in this economy.

Features of the Information Economy

  • Global and Integrated

    • Information economy operates on a planetary scale, allowing real-time collaboration worldwide.

  • Productivity and Innovation

    • High productivity; profits arise from rapid innovation and customer retention.

  • Synonyms and Related Terms:

    • Information economy is also referred to as the “knowledge economy”, “new economy”, or “network economy”.

Technology/Computer Literacy

  • Importance in the Information Age

    • Computers permeate various sectors: Businesses, Government, Education.

    • The current global environment represents a "Global Village", necessitating involvement in an information network.

    • Essential for economic competitiveness among students and professionals.

Adverse Effects of ICTs in Society

  • Areas of Concern Include:

    • Education

    • Business and Economy

    • Employment

    • Crime

    • Moral implications

    • Others (e.g. social interactions, mental health).