# Introduction to Computer.pptx

29 May 2023
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### Introduction to Computer.pptx

• 2. Define Of Computer: Computer is a machine or device that performs: • Processes, • Calculations • Operations (based on instructions provided by a software or hardware program). • Ability to accept: • Data (input), process it, • And then produce outputs.
• 3. Discovery & Function Discovery of Computer: • Computer is derived from Latin word. • Computer means “To Calculate”. • Discovered by “Charles Babbage” in 19th century. Functions of Computer: • Taking data, processing data, • Returning data and storing data.
• 4. Importance of Computer • Computer are a great source of : • Entertainment • Information for the modern world. • They help people • Save time • Make money with the help of computer.
• 5. Define Data • Data is a raw and unorganized fact that required to be processed to make it meaningful. • Data can be simple at the same time unorganized unless it is organized. • Generally, data comprises facts, observations, perceptions numbers, characters, symbols, image, etc. • Data is always interpreted, by a human or machine, to derive meaning. So, data is meaningless.
• 7. Numeric Data • Numeric data simply means numbers. • Numbers come in a variety of different types.... • Integers an integer is a whole number • It has no decimal or fractional parts. • Integers can be either positive or negative.
• 8. Conti… • Real Numbers Any number that you could place on a number line is a real number. • Real numbers include whole numbers (integers) and numbers with decimal/fractional parts. • Real numbers can be positive or negative.
• 9. Conti… • Alphanumeric (text) data: alphanumeric (often simply called 'text') • Data refers to data made up of letters (alphabet) and numbers (numeric). • Usually symbols (5%+, etc.) And spaces are also allowed.