Saturday, March 19, 2011

Light and Sound-power point

http://www.esnips.com/doc/228171d5-f535-4021-aa53-873fec5ad5f3/LIGHT-AND-SOUND

graphic organizer

http://www.esnips.com/doc/5cad5108-cda2-47aa-a6d3-fba397e70908/History-of-Computer-97-2003

Tuesday, March 15, 2011

History of ICT Education


History of ICT in Education
The field of computers in education is, of course, part of the overall field of education. Because computer use now permeates education, every teacher should have some knowledge of the field of computers in education. The purpose of this document is to provide a relatively short overview of this history along with some links to resources that may be useful to people who want to study this history in more detail.
Before the Invention of Writing
The history of Information and Communication Technology (ICT) in education can be traced back many thousands of years before the first development of reading and writing. We have cave wall paintings and we have notches carved onto bones and that are long lasting artifacts.
Long before the earliest written records, there are drawings that do indicate knowledge of mathematics and of measurement of time based on the stars. For example, paleontologists have discovered ochre rocks in a cave in South Africa adorned with scratched geometric patterns dating back to c. 70,000 BC.[2] Also prehistoric artifacts discovered in Africa and France, dated between 35,000 BC and 20,000 BC,[3] indicate early attempts to quantify time.[4]
Throughout their history, humans have faced the need to measure and communicate about time, quantity, and distance.
                               
: At one end of the Ishango Bone is a piece of quartz for writing, and the bone has a series of notches carved in groups. It was first thought these notches were some kind of tally marks as found to record counts all over the world. However, the Ishango bone appears to be much more than a simple tally. The markings on rows (a) and (b) each add to 60. Row (b) contains the prime numbers between 10 and 20. Row (a) is quite consistent with a numeration system based on 10, since the notches are grouped as 20 + 1, 20 - 1, 10 + 1, and 10 - 1. Finally, row (c) seems to illustrate for the method of duplication (multiplication by 2) used more recently in Egyptian multiplication. Recent studies with microscopes illustrate more markings and it is now understood the bone is also a lunar phase counter. Who but a woman keeping track of her cycles would need a lunar calendar? Were women our first mathematicians?
The picture given below shows Sumerian clay tokens whose use began about 11,000 years ago. Such clay tokens were a predecessor to reading, writing, and mathematics.
                              
Since the Invention of Writing
A written language can be thought of as a type of computer. It provides for the input, storage, and output for information. And, it is an aid to the manipulation of information. Compare this with a commonly used definition that a computer is a machine for the input, storage, manipulation, and output of information.
Note that written languages provide include both for the representation of both words and numbers. The first electronic digital computers were specifically designed to deal with numbers. However, it soon became evident that they could also deal with alphabetic symbols. Computers made possible the automation of many numerical and alphabetic manipulation processes. 

A comprehensive history of ICT in education thus begins more than 70,000 years ago and continues on into modern times. Before the development of written languages, ICT education was informal. The development of reading and writing quickly led to the development of formal schools in which students come together in a classroom setting and receive instruction from a teacher.
Think about the abacus that was developed more than 4,500 years ago. Its roots lie in marks drawn in dirt or sand, and a collection of pebbles that is in one to one correspondence with a herd of animals.
Beads on strings in a frame provide a compact device to aid in counting and doing arithmetic. Probably from the very beginning of use of this type of abacus, there was the issue of learning its use with very little understanding versus learning with deeper understanding. That issue still exists today in paper and pencil arithmetic, use of electronic calculators, and use of computers.


In brief summary we know that:
Humans have innate capabilities to learn oral communication. Humans also developed aids to oral communication more than 70,000 years ago. Reading and writing are very powerful aids to oral language. Machines have been developed that are powerful aids to the use of written language.
We now have electronic digital computers. During their brief history they have made very rapid progress in gaining increasing power as an aid to the input, storage, automated manipulation, and output of data, information, and knowledge.
It is possible to use these computer capabilities with relatively little understanding. However, a deeper level of understanding on the part of the user considerably increases the usefulness of computers. Thus, ICT is now a very important area of or component of both informal and formal education.
ICT learning
Using ICT can help pupils to access, select and interpret information, recognize patterns, test reliability and accuracy, review and modify their work to improve the quality, communicate with others and present information, evaluate their work, improve efficiency, be creative and gain confidence.
 ICT helps pupils learning in history by providing quick and effective access to large quantities of information. It can help them to investigate, organize, edit and present information in many different ways. ICT therefore supports and enhances many of the processes in the development of pupils' historical knowledge, skills and understanding.



Submitted by:
Rhea Baisac-Armecin – MAED. ECE
Info. Tech. 12:00-3:00 pm



Sunday, March 6, 2011

History of computer

2400 BC
Abacus: The abacus, the first known calculator, was invented in Babylonia
 
500 BC
Panini: Introduced the forerunner to modern formal language theory
300 BC
Pingala: Pingala invented the binary number system
87 BC
Antikythera Mechanism: Built in Rhodes to track movement of the stars
60 AD
Heron of Alexandria: Heron of Alexandria invents machines which follow a series of instructions
724
Liang Ling-Can: Liang Ling-Can invents the first fully mechanical clock
1492
Leonardo da Vinci: Drawings by Leonardo da Vinci depict inventions such as flying machines, including a helicopter, the first mechanical calculator and one of the first programmable robots
 
1614
John Napier: John Napier invents a system of moveable rods (Napier's Rods) based on logarithms which was able to multiply, divide and calculate square and cube roots
 
1622
William Oughtred: William Oughtred develops slide rules
1623
Calculating Clock: Invented by Wilhelm Schickard
1642
Blaise Pascal: Blaise Pascal invents the the "Pascaline", a mechanical adding machine
1671
Gottfried Leibniz: Gottfried Leibniz is known as one of the founding fathers of calculus
1801
Joseph-Marie Jacquard: Joseph-Marie Jacquard invents an automatic loom controlled by punched cards
 
1820
Arithmometer: The Arithmometer was the first mass-produced calculator invented by Charles Xavier Thomas de Colmar
 
1822
Charles Babbage: Charles Babbage designs his first mechanical computer
1834
Analytical Engine: The Analytical Engine was invented by Charles Babbage
1835
Morse code: Samuel Morse invents Morse code
1848
Boolean algebra: Boolean algebra is invented by George Boole
1853
Tabulating Machine: Per Georg Scheutz and his son Edvard invent the Tabulating Machine
1869
William Stanley Jevons: William Stanley Jevons designs a practical logic machine
1878
Ramon Verea: Ramon Verea invents a fast calculator with an internal multiplication table
1880
Alexander Graham Bell: Alexander Graham Bell invents the telephone called the Photophone
1884
Comptometer: The Comptometer is an invention of Dorr E. Felt which is operated by pressing keys
 
1890
Herman Hollerith: Herman Hollerith invents a counting machine which  increment mechanical counters
 
1895
Guglielmo Marconi: Radio signals were invented by Guglielmo Marconi
 
1896
Tabulating Machine Company:  Herman Hollerith forms the Tabulating Machine Company which later becomes IBM
 
1898
Nikola Tesla: Remote control was invented by  Nikola Tesla
 
1906
Lee De Forest: Lee De Forest invents the electronic tube
1911
IBM: IBM is formed on June 15, 1911
 
1923
Philo Farnsworth: Television Electronic was invented by  Philo Farnsworth
1924
John Logie Baird:  Electro Mechanical television system was invented by John Logie Baird
Walther Bothe: Walther Bothe develops the logic gate
 
1930
Vannevar Bush: Vannevar Bush develops a partly electronic Difference Engine
1931
Kurt Godel:  Kurt Godel publishes a paper on the use of a universal formal language
1937
Alan Turing: Alan Turing develops the concept of a theoretical computing machine
 
1938
Konrad Zuse: Konrad Zuse creates the Z1 Computer a binary digital computer using punch tape
 
1939
George Stibitz: George Stibitz develops the Complex Number Calculator - a foundation for digital computers
Hewlett Packard:  William Hewlett and David Packard start Hewlett Packard
John Vincent Atanasoff and Clifford Berry: John Vincent Atanasoff and Clifford Berry develop the  ABC (Atanasoft-Berry Computer) prototype
 
1943
Enigma: Adolf Hitler uses the Enigma encryption machine
Colossus: Alan Turing develops the the code-breaking machine Colossus
 
1944
Howard Aiken & Grace Hopper: Howard Aiken and Grace Hopper designed the MARK series of computers at Harvard University
 
1945
ENIAC: John Presper Eckert & John W. Mauchly: John Presper Eckert & John W. Mauchly develop the ENIAC ( Electronic Numerical Integrator and Computer)
Computer Bug: The term computer ‘bug’ as computer bug was first used by Grace Hopper
 
1946
F.C. Williams: F.C. Williams develops his cathode-ray tube (CRT) storing device the forerunner to  random-access memory (RAM)
 
1947
Pilot ACE: Donald Watts Davies joins Alan Turing to build the fastest digital computer in England at the time, the Pilot ACE
William Shockley: William Shockley invents the transistor at Bell Labs
Douglas Engelbart: Douglas Engelbart theorises on interactive computing with keyboard and screen display instead of on punchcards
 
1948
Andrew Donald Booth: Andrew Donald Booth invents magnetic drum memory
Frederic Calland Williams  & Tom Kilburn: Frederic Calland Williams  & Tom Kilburn develop the SSEM "Small Scale Experimental Machine" digital CRT storage which was soon nicknamed the "Baby"
 
1949
Claude Shannon: Claude Shannon builds the first machine that plays chess
Howard Aiken: Howard Aiken develops the Harvard-MARK III
 
1950
Hideo Yamachito: The first electronic computer is created in Japan by Hideo Yamachito.

Alan Turing: Alan Turing publishes his paper Computing Machinery and Intelligence which helps create the Turing Test.
 
1951
LEO:  T. Raymond Thompson and  John Simmons develop the first business computer, the Lyons Electronic Office (LEO) at Lyons Co.

UNIVAC: UNIVAC I (UNIVersal Automatic Computer I) was introduced -  the first commercial computer made in the United States and designed principally by John Presper Eckert & John W. Mauchly
EDVAC: The EDVAC (Electronic Discrete Variable Automatic Computer) begins performing basic tasks. Unlike the ENIAC, it was binary rather than decimal
 
1953
The IBM 701 becomes available and a total of 19 are sold to the scientific community.
 
1954
John Backus & IBM: John Backus & IBM develop the FORTRAN Computer Programming Language
 
1955
Bell Labs introduces its first transistor computer.
 
1956
Optical fiber was invented by  Basil Hirschowitz, C. Wilbur Peters, and Lawrence E. Curtiss
 
1957
Sputnik I and Sputnik II: Sputnik I and Sputnik II are launched by the Russians
1958
ARPA (Advanced Research Projects Agency) and NASA is formed
Silicon chip: The first integrated circuit, or silicon chip, is produced by the US Jack Kilby & Robert Noyce
 
1959
Paul Baran: Paul Baran theorises on the "survivability of communication systems under nuclear attack", digital technology and symbiosis between humans and machines
 
1960
COBOL: The Common Business-Oriented Language (COBOL) programming language is invented.
 
1961
Unimate: General Motors puts the first industrial robot, Unimate, to work in a New Jersey factory.
 
1962
The first computer game:  The first computer game Spacewar Computer Game invented BY Steve Russell & MIT
 
1963
The Computer Mouse: Douglas Engelbart invents and patents the first computer mouse (nicknamed the mouse because the tail came out the end)

The American Standard Code for Information Interchange (ASCII) is developed to standardize data exchange among computers.
 
1964
Word processor: IBM introduces the first word processor
BASIC:  John Kemeny and Thomas Kurtz develop Beginner’s All-purpose Symbolic Instruction Language (BASIC)
 
1965
Hypertext:  Andries van Dam and Ted Nelson coin the term "hypertext"
 
1967
Floppy Disk: IBM creates the first floppy disk
1969
Seymour Cray: Seymour Cray develops the CDC 7600, the first supercomputer
Gary Starkweather: Gary Starkweather invents the laser printer whilst working with Xerox
ARPANET:  The U.S. Department of Defense sets up the Advanced Research Projects Agency Network (ARPANET ) this network was the first building blocks to what the internet is today but originally with the intention of creating a computer network that could withstand any type of disaster.

1970
RAM: Intel  introduces the world's first available dynamic RAM ( random-access memory) chip and the first microprocessor, the Intel 4004.
 
1971
E-mail: E-mail was invented by  Ray Tomlinson
Liquid Crystal Display ( LCD ): Liquid Crystal Display ( LCD ) was invented by  James Fergason
Pocket calculator: Pocket calculator was invented by Sharp Corporation
Floppy Disk: Floppy Disk was invented by  David Noble with IBM - Nicknamed the "Floppy" for its flexibility.
 
1972
First Video Game: Atari releases Pong, the first commercial video game
The CD:  The compact disc is invented in the United States.
 
1973
Robert Metcalfe and David Boggs: Robert Metcalfe creates the Ethernet, a local-area network (LAN) protocol
Personal computer: The minicomputer Xerox Alto (1973) was a landmark step in the development of personal computers
Gateways: Vint Cerf and Bob Kahn develop gateway routing computers to negotiate between the various national networks
 
1974
SQL: IBM develops SEQUEL (Structured English Query Language ) now known as SQL
WYSIWYG:  Charles Simonyi coins the term WYSIWYG (What You See Is What You Get) to describe the ability of being able to display a file or document exactly how it is going to be printed or viewed
 
1975
Portable computers: Altair produces the first portable computer
Microsoft Corporation: The Microsoft Corporation was founded April 4, 1975 by Bill Gates and Paul Allen to develop and sell BASIC interpreters for the Altair 8800
 
1976
Apple: Apple Computers was founded Steve Wozniak and Steve Jobs
1977
Apple Computer’s Apple II, the first personal computer with color graphics, is demonstrated
MODEM: Ward Christensen writes the programme "MODEM" allowing two microcomputers to exchange files with each other over a phone line
 
1978
Magnetic tape: The first magnetic tape is developed in the US
 
1979
Over half a million computers are in use in the United States.
 
1980
Paul Allen and Bill Gates: IBM hires Paul Allen and Bill Gates to create an operating system for a new PC. They buy the rights to a simple operating system manufactured by Seattle Computer Products and use it as a template to develop DOS.
 
1981
Microsoft: MS-DOS Computer Operating System increases its success
 
1982
WordPerfect: WordPerfect Corporation introduces WordPerfect 1.0 a word processing program
Commodore 64:  The Commodore 64 becomes the best-selling computer of all time.

SMTP: SMTP (Simple Mail Transfer Protocol) is introduced
 
1983
More than 10 million computers are in use in the United States
Domain Name System (DNS): Domain Name System (DNS) pioneered by Jon Postel, Paul Mockapetris and Craig Partridge. Seven 'top-level' domain names are initially introduced: edu, com, gov, mil, net, org and int.
Windows: Microsoft Windows introduced eliminating the need for a user to have to type each command, like MS-DOS, by using a mouse to navigate through drop-down menus, tabs and icons
 
1984
Apple Macintosh: Apple introduces the Macintosh with mouse and window interface
Cyberspace: William Gibson coins the word cyberspace when he publishes Neuromancer
 
1985
Paul Brainard: Paul Brainard introduces Pagemaker for the Macintosh creating the desktop publishing field.

Nintendo: The Nintendo Entertainment System makes its debut.
 
1986
More than 30 million computers are in use in the United States.
1987
Microsoft introduces Microsoft Works

Perl: Larry Wall introduces Perl 1.0
 
1988
Over 45 million PCs are in use in the United States.
1990
The Internet, World Wide Web & Tim Berners-Lee:  Tim Berners-Lee and Robert Cailliau propose a 'hypertext' system starting the modern Internet
Microsoft and IBM stop working together to develop operating systems
 
1991
The World Wide Web: The World Wide Web is launched to the public on August 6, 1991
 
1993
At the beginning of the year only 50 World Wide Web servers are known to exist
 
1994
The World Wide Web Consortium is founded by Tim Berners-Lee to help with the development of common protocols for the evolution of the World Wide Web
YAHOO: YAHOO is created in April, 1994.
 
1995
Java: Java is introduced
Amazon: Amazon.com is founded by Jeff Bezos
EBay: EBay is founded by Pierre Omidyar
Hotmail: Hotmail is started by Jack Smith and Sabeer Bhatia.
 
1996
WebTV: WebTV is introduced
 
1997
Altavista introduces its free online translator Babel Fish

Microsoft acquires Hotmail
 
1998
Google: Google is founded by Sergey Brin and Larry Page on September 7, 1998
PayPal is founded by Peter Thiel and Max Levchin
 
2001
Xbox: Bill Gates introduces the Xbox on January 7th 2001.
 
2002
Approximately 1 billion PCs been sold
PayPal is acquired by eBay
 
2005
September 12: eBay acquires Skype
2006
Skype announces that it has over 100 million registered users.