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Information and communications technology


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Empowerment Technology

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Information and communications technology

  1. 1. Information and Communications Technology
  2. 2. What is ICT? ICT, which stands for Information and Communications Technology, is an umbrella term that includes any communication device or application, encompassing: • Radio • Television • Cellular Phones • Computer and Network software and hardware
  3. 3. Periods of ICT Pre Mechanical Mechanical Electromechanical Electronic
  4. 4. Pre Mechanical Period It is theearliest age of informationtechnology. It can be defined as thetime between3000 B.C. and 1450 A.D. when humansfirst started communicatingthey would try to use languageor simple picture drawings known aspetroglyths which were usually carved in rock. Early alphabets were developed such as thePhoenicianalphabet.
  5. 5. Mechanical Period • This is when we first start to see connections between our current technology and its ancestors. The mechanical agecan be definedas the time between 1450 and 1840. • A lot of newtechnologies are developedin this era as there is a large explosion of interest onthis area. • Technologies like the slide rule (an analog computer usedfor multiplying and dividing) were invented. Blaise Pascal invented the • Pascaline which was a verypopular mechanical computer. • Charles Babbage developed the difference engine which tabulated polynomial equations using the method of finite differences.
  6. 6. Electromechanical Period • The electromechanicalagecan bedefinedas the timebetween 1840 and 1940.These are thebeginnings oftelecommunication. • Thetelegraphwascreatedin theearly 1800s. Morsecode was createdby Samuel Morse in1835. • Thetelephone(oneofthemostpopular formsofcommunication ever) was createdby AlexanderGrahamBellin 1876. • Thefirstradio developedby GuglielmoMarconiin 1894. • Allofthesewere extremelycrucial emergingtechnologiesthatled to bigadvancesin theinformationtechnologyfield.
  7. 7. Electronic Period • The electronic age iswhatwe currentlylive in.It can be defined as thetime between1940 and right now. • It has 4 periods namely: LateVacuum Tubes, Transistors, IntegratedCircuits and ComputerProcessors.