integrated technology
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Integrated Technology
Unit 2- Computer Hardware
Identify system components Describe the role of the central processing
unit Define computer memory Identify types of storage devices Care for storage media
Objectives
Box that contains components
Tower case
All-in-one
Case
Displays the images
LCD or LED◦ Very thin
CRT (old)◦ Very bulky
Monitor
Homework:
◦ Take a picture of your computer & monitor With you in the picture Bring in on your flash drive
◦ Is it a desktop or laptop?
◦ What kind of monitor do you have?
What Do You Have?
Motherboard Circuit board
Connects all components◦ Hard drive◦ Memory◦ CPU
Bus◦ Data transfer to components
How fast is your computer?- CPU
Processor or “Brain”
Reads/interprets instructions ◦ Performs calculations to complete
tasks
Speed= Gigahertz (GHz)◦ 2.2Ghz◦ 3GHz
1979= 8 MHz 1993= 200 MHz 2013= 3 GHz
How much memory ?- RAM Active programs/data are
held◦ Stores what you are creating◦ “Short-term memory”
Disappears when computer is off
Measured in bytes◦ Gigabytes (GB)◦ 4GB-8GB is standard now
Start, Control Panel, System
What Do You Have?
How does your computer boot?- ROM
BIOS or ROM
On motherboard
Has instructions to boot your computer◦ Read only- no store data
Info stays when power is off
Boot Process Power on the PC
ROM BIOS checked for location of OS◦ Usually on the hard drive
Loads OS from hard drive into RAM
OS Starts
You log in
Review What speed is a CPU measured in?
◦ GHz
Which memory holds your active, running programs or what you copied? ◦ RAM
Which type of monitor is shown?◦ CRT
Which memory goes away when power is off? ◦ RAM
What holds the computer’s boot instructions?◦ BIOS ROM
What is the brains of a computer?◦ CPU- what does it stand for?
The CPU, RAM, and ROM are all on what component?◦ Motherboard
Review
Storage Device- Hard Drive
Store data permanently◦ Long-term storage
GB or TB◦ 320GB◦ 1TB
Inside Case
External HD◦ USB
Storage Device- Optical
Optical uses a laser to read/write data
CD or DVD-ROM= Read Only CD or DVD-R= Record Once CD or DVD-RW= Rewritable
CD= 80 min./ 700MB DVD= 2 hrs./ 4.7GB BD= 4.5 hrs. of HD/ 25GB
Size Hard Drive:◦ Start, Computer,
right-click on C:
Type of Optical Drive:◦ Take a picture of front
What Do You Have?
No moving parts inside
SSD HD◦ In thin laptops
Memory Cards◦ SD, SDHC, microSD, CF,
Memory Stick
USB Flash drive
Storage Device- SSD
Storage Device- Floppy Disks
8-inch 5 ¼” 3 ½”
Magnetic Storage- 3.5”=1.44MB
Keep magnetic devices away from TV’s & monitors◦ Have magnetic fields; may erase
Avoid extreme temps◦ Like in a car
Hold optical media by edges
Keep discs in sturdy case
Caring for Storage Media
Types of Computers Project In groups of 2, make a
poster…◦ Title of device◦ Big picture of device◦ It’s use & where it’s used◦ Cost ($, $$, $$$, $$$$)◦ Special Features
Desktop Laptop/Notebook Netbook Tablet Workstation Servers Smartphone GPS Music/Media Player Game System E-Book Reader
Review T/F. Hard drives are used to temporarily store what
you are creating.◦ False
Which removable storage would you use to copy pictures from one PC to another? Flash Drive, Memory Card, Floppy, or Ext. HD◦ Flash, Mem Card, or Ext HD
Which optical storage would be used to store music and then later erased to store photos?◦ CD-RW
How much data can a Blu-Ray DVD hold?◦ 25GB
If pictures are about 3MB each, how many pictures could you put on that disc?◦ About 8300!
Which storage device has no moveable parts?◦ SSD/Flash
Review
Review 2
Integrated Technology
Unit 2- Computer Hardware
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