1.00 digital literacy unit objective: 1.01 computer basics
TRANSCRIPT
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1.00 Digital Literacy
Unit Objective:
1.01 Computer Basics
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What Is A Computer? An electronic device that:
• Receives data• Processes data• Stores data, and • Produces a result (output).
Uses hardware and software Variety of types and sizes
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Types of Personal Computers
Desktop Computer: designed to be used on a desktop.
Notebook Computer: designed to be used on a desktop but still small enough to be portable.
Laptop Computer: designed to be small enough and light enough to be used on your lap.
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Tablet computer: similar to a laptop, but equipped with a touch screen and/or handwriting recognition
Netbook: similar to a laptop, but smaller, lighter, and more battery life
Other Types of Personal Computers
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Hardware The tangible, physical equipment that can be
seen and touched such as:• Computer Case• Monitor• Keyboard and Mouse• Disk Drive• Speakers
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Monitor
Keyboard
Mouse
Printer
Speaker
Computer Case (Processor inside)
Floppy Disk Drive
CD-ROM/DVD Drive
PARTS OF A COMPUTER SYSTEM
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What you don’t see…
CPU (Central Processing Unit)• The “brains” of the computer housed on a tiny silicon
chip inside the computer case.
How Stuff Works Video
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IPOS CYCLE The Information Processing Cycle
consists of:
Input Devices
Processing Devices
Output Devices
Storage Devices
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Input Devices
Joystick
Mouse/Trackball
Light Pen
Pointing Stick
Touch Pad
Keyboard Touch Screen
Bar Code Reader
Scanner
Microphone
Graphics Tablet
Digital Camera
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Processing Device
Central Processing Unit (CPU) – known as the “brain” of the computer and is responsible for processing the information that has been entered into the computer
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Output Devices
Monitor: a screen that displays information such as text and numbers.• Softcopy
Printer: gives you information from the computer in printed form.• Hardcopy
Speakers: allow you to hear voice, music, and other sounds from your computer.
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Storage Devices
Hard Disk Drive: used to store data inside of the computer.• Magnetic platter that holds a large amount of
information• Allows the fastest access
RAM (Random Access Memory)- temporary, short term
ROM (Read Only Memory)- long-term
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Storage DevicesFloppy Disk: flat circles of iron oxide-coated
plastic enclosed in a hard plastic case.• Most are 3 ½ inches and have a capacity to hold 1.44
MB or more of data.
CD ROM : a compact disk that reads only memory.
CD-RW: a device that allows you to read and write to a compact disk
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Storage Devices (Con.)
DVD Digital Video Disks:
Used for Movies
USB/Jump Drive/Flash Drive: A completely portable disk and disk drive.
What is the only Internal Storage Device?
Zip Disks: A storage option with larger capacity than a
Floppy or CD.
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Which Storage Device Holds The Most Information?
FLOPPY DISKS1.44 MB
CD-ROM DISC640 MB
DVD DISC17 GB
HARD DRIVES80 and above GB USB/Flash Drive
2, 4, 8, or 16 GB
ZIP DISKS750 MB
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Which Storage Device Holds The Most Information?
Name These Devices:
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JUST A FEW MORE THINGS ABOUT HARDWARE!!!!!!!
PERIPHERAL DEVICEA device attached to your computer that ENHANCES its
ability to do more TASKS.
LET’S NAME SOME……….
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KeyboardAn Input “PERIPHERAL” DEVICE
Most common input device
Function Keys: Execute a command
Activate program commands
Numeric Keypad: Key math operations
and numbersAlphabetic Keys:Key letters
Numeric/Symbol Keys:Key numbers and symbols
only
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Keyboard: Numeric Keypad
1 2 3
4 5 6
7 8 9
,
/ * -
+
Enter
0
Num
LockBe sure NUM LOCK is activated!
The home row keys are 4, 5, and 6.
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MouseAn Input “PERIPHERAL” DEVICE
Used to control the Cursor
Point, Click, and Drag
A tool used to OPERATE the computer.
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WHAT DOES IPOSSTAND FOR?
Input
Enters data into the
computer
Processing
Changes data into
usable form
Output
Sends data out of the
computer
Storage Saves for use later
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What Happens During The IPOS Cycle?
INPUT – when information is entered into the computer; the
computer receives information. PROCESSING –
when the computer processes/changes the data that
has been entered. OUTPUT –
when information leaves the computer. STORAGE –
when information is stored/saved to be used later.
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How The IPOS Cycle Works
INPUT
PROCESSING
OUTPUT
STORAGE STORAGE
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Directions:•Choose an everyday activity and relate it to the IPOS cycle.•Put your cycle on notebook paper or you could type it.•Not a requirement, but graphics would spruce it up.
IPOS Cycle Homework
INPUTGather all ingredients and place on the counter.
BreadPeanut
ButterKnifePlate
PROCESSINGUse the knife to dip into the jar of peanut butter and then spread the peanut butter onto a slice of bread. Place another slice of bread on top of the first.
OUTPUTYou now have the finished peanut butter sandwich on the plate. STORAGE
Place the sandwich in a baggy to take to school for lunch.