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Today is a Rainy Day. Please take your Umbrella with you! Wow, I got it.

Data Raw material for computer processing for example, numbers, text, images, and sounds, in a form that is suitable for storage or processing by a computer. Colombo Hoover Craft

DATA The ability to gather, store, process, and retrieve data in a timely manner is vital Well managed data can –save time and money –increase productivity –enhance decision making Data

Information Computer data that has been organized and presented in a systematic fashion to clarify the underlying meaning. No of Students in Class A= 47 No of Students in Class B= 40 No of Students in Class C= 39 No of Students in Class D= 28 No of Students in Class E= 51 No of Students in Class F= 32 Hoover Craft

Characteristics of Information An item of information has following characteristics. Accuracy Information is true or false ; accurate or inaccurate Form This is described in terms of qualitative and quantitative, numerical and graphic, summary and detailed. Frequency This is a measure of how often information is needed, collected or produced.

Breadth This defines the scope of information Origin Information may origin from sources inside the organisation or outside. Characteristics of Information Time horizon Information may be oriented toward the past, toward current event or toward future activities and events.

A set of information has following characteristics Relevance Information is relevant if it is needed for a practical situation. Completeness Complete information provides the user with all that needs to be known about a particular situation. Timeliness Timely information is something that is available when it is needed. Further it has not become outdated through delay.

Data Vs Information meaningless data becomes information when it is processed and presented to the decision maker in a meaningful way. Only when the the input (data) is accurate,timely, and reliable will the output (information be useful) and reliable Garbage-In-Garbage-Out

Data: (ISO) A representation of facts, concepts or instructions in a formalised manner suitable for communication, interpretation or processing by human beings or by automatic means. Letters, numbers, colours, symbols, shapes, temperatures, sound or other facts and figures are data suitable for processing. Information: (ISO) The meaning that is applied to data by means of the conversions applied to that data. I.e. processed data. ISO – International Standard organisation Data and Information Room Temperature = 31 O C

Information processing The acquisition, recording, organization, retrieval, display, and dissemination of information is called the Information Processing. Process

Function of a Computer RAW DATA & FACTS INFORMATION A Computer is a programmable, multipurpose Electronic machine that accepts data (e.g. raw data, facts & figures) and processes, or manipulates it into information we can use, such as summaries or totals E.g. An automatic teller machine (ATM) computes the deposits and withdrawals to give you the total in your account.

Information processing * Data received by a computer via its input devices * Stored in memory prior to processing * Data get processed * Results sent to the output devices Memory Processor Key board