Chapter 1: Applying Computer Basics – Lesson 1 © 2010, 2006 South-Western, Cengage Learning.
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Transcript of Chapter 1: Applying Computer Basics – Lesson 1 © 2010, 2006 South-Western, Cengage Learning.
Chapter 1: Applying Computer Basics – Lesson 1© 2010, 2006 South-Western, Cengage Learning
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
Lesson 1 Slide 2
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. (01011101)
Lesson 1 Slide 3
DigiTools• Short for "digital communication tools"• Computers of all types are called DigiTools
Lesson 1 Slide 4
Personal Computers
• Personal Computer (PC): designed for individual use – multimedia desktop, laptop, tablet
• CPU: Central Processing Unit – microprocessor
Lesson 1 Slide 5
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
Slide 6
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,
Lesson 1 Slide 7
Software
• Software continued: – Application
• 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
Lesson 1 Slide 8
Information Processing
• Information Processing: interaction with computers using a 5-step process– Putting data into forms we can use &
understand
• Data: words, pictures, numbers
Lesson 1 Slide 9
5 Steps of Information Processing
Lesson 1 Slide 10
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 Lesson 1 Slide 11
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)
Lesson 1 Slide 12