Intoduction to Computer and Information Technology
oduction
CHAPTER 1: INTODUCTION TO COMPUTER AND INFORMATION TECHNOLOGY
2 Computer and Information Literacy
Know how to use a computer is a basic skill Purpose : • To succeed in business • To function effectively in society
To fulfill the purpose we should be a computer literate and information literate
Computer literate
• Must be knowledgeable in how to use a computer
Information literate
• Must be knowledgeable in finding, analyzing and using information • The ability to gather information from multiple sources, select the relevant material and organize it into a form that will allow you to make a decision or take a specific action • Information – computer, other products, finance, travel, weather • Sources – magazine, publication, Internet • By the use of communication equipment and software, computers can connect with information sources around the world • Up-to-date information, fast, efficient, cost-effective
4 What is a computer?
• An electronic device • Operating under the control of instructions stored in its own memory unit • Can accept data (input) • Process data arithmetically and logically • Produce results (output) • Store the results for future use
Computer system – a collection of devices that function together to process data
2. What does a computer do?
Input • Data given to a computer during the input operation • Data – raw facts – numbers, words, images, sounds
Process • Manipulate data to create information • Information – data that has been processed into a meaningful and useful form • Information processing – production of information by processing data on a computer • Data – arithmetic and logical
Output • Information created is put into some form (e.g. printed report)
Storage • Store automatically • Magnetic – CD, tape,
CHAPTER 1: INTODUCTION TO COMPUTER AND INFORMATION TECHNOLOGY
2 Computer and Information Literacy
Know how to use a computer is a basic skill Purpose : • To succeed in business • To function effectively in society
To fulfill the purpose we should be a computer literate and information literate
Computer literate
• Must be knowledgeable in how to use a computer
Information literate
• Must be knowledgeable in finding, analyzing and using information • The ability to gather information from multiple sources, select the relevant material and organize it into a form that will allow you to make a decision or take a specific action • Information – computer, other products, finance, travel, weather • Sources – magazine, publication, Internet • By the use of communication equipment and software, computers can connect with information sources around the world • Up-to-date information, fast, efficient, cost-effective
4 What is a computer?
• An electronic device • Operating under the control of instructions stored in its own memory unit • Can accept data (input) • Process data arithmetically and logically • Produce results (output) • Store the results for future use
Computer system – a collection of devices that function together to process data
2. What does a computer do?
Input • Data given to a computer during the input operation • Data – raw facts – numbers, words, images, sounds
Process • Manipulate data to create information • Information – data that has been processed into a meaningful and useful form • Information processing – production of information by processing data on a computer • Data – arithmetic and logical
Output • Information created is put into some form (e.g. printed report)
Storage • Store automatically • Magnetic – CD, tape,