1. Chapter 1: Applying Computer Basics – Lesson 1
© 2010, 2006 South-Western, Cengage Learning

2. Applying Computer Basics
Computer: a machine that follows a set of instructions and makes calculations
What would our world be like without computers?
Computers can: guide telescopes, control lighting, air conditioning, security systems, make calls, store phone numbers, sent text messages, share music & video, play games, run programs, animate movies
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3. Sizing up Hardware Hardware: all parts you can touch with your hands
Microprocessors: a small circuit board inside a computer that controls all the work a computer does (digital)
Processors: most important parts! Brains of the computer
Digital: microprocessors that calculate with 0s & 1s called binary code. ( )
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4. DigiTools Short for "digital communication tools"
Computers of all types are called DigiTools
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5. Personal Computers
Personal Computer (PC): designed for individual use – multimedia desktop, laptop, tablet
CPU: Central Processing Unit – microprocessor
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6. Peripherals Peripherals: devices that work with a computer
Printers, digital tablets, scanners, and headsets (speech recognition)
Computers & Peripherals are digital communication tools – DigiTools!
Also called digital devices, electronic devices, and consumer electronics
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7. Software
Software: instructions computers need to work properly. Three types:
Operating system (OS)
Controls communication with hardware
Controls interaction with user. Windows Vista, Windows XP,
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8. Software Software continued: Application Online app
Allows you to complete a specific task
Generally installed on a local computer. Word, Excel, PowerPoint
Online app
Also lets you complete specific tasks
Runs over the Internet inside a web browser Google gadgets
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9. Information Processing
Information Processing: interaction with computers using a 5-step process
Putting data into forms we can use & understand
Data: words, pictures, numbers
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10. 5 Steps of Information Processing
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11. Information Processing
Input: putting data into a computer
Touchscreen, keyboard, electronic pen, speech headset, scanner, camera, etc.
Processing: changing or manipulating data using software
Add numbers, sort lists, alter colors
Output: getting data from your computer
Read a text message, print report, view photos on monitor
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12. Information Processing
Distribution: sharing information with people who want it
Post a blog, build website, use phone to send picture
Storage: saving data for later use
Local hard drive (C:\\), flash drive, Internet, Network (Z:\\)
Our network is Leaddog. You save to your folder on the network (Your name)
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