1. Unit 1 Days 3-4: Standard 1 Objective 1
The student will be able to:
Describe the uses for computer hardware components
Choose hardware components for various types of users
Instruction: Demystify and learn the function of the parts of a PC. Learn the terminology of hardware components necessary for the purchase of a home computer

2. Exploring Computer Science
Unit 1 – Days 3-4

3. What is a computer? Output Processing Storage
A Computer is a programmable machine made of 4 main systems:
Input
Output
Processing
Storage
Review – What is a machine?
Write your answer here

4. Hardware Software Peripheral Device Input Device Output Device
Look up and fill in these vocabulary definitions. Hint: Some definitions may be on the slides that follow.
Hardware
Software
Peripheral Device
Input Device
Output Device
Processing Device
Storage Device
Memory
RAM Memory
ROM Memory
Hardware – any part of the computer that you can see/touch
Software – programs that run the computer
Peripheral Device – something that plugs into the computer to extend its capacity
Input Device – anything used to send data into the computer
Output Device – anything used to display information that leaves the computer
Processing Device – CPU/Chip – the brains of the computer – does all the computing
Storage Device – Hard drive/cloud/peripherals – where data is stored when NOT being processed
Memory – RAM/ROM – where Data is when it is being processed

5. BBKMGTPE Processing Speed --- measured in ---- Hertz
Add this chart to your vocabulary journal. Memorize!
Processing Speed measured in ---- Hertz
Storage capacity – measured in --- Bytes
BIG BIT (0 OR 1)
BULLY BYTE (8 BITS)
KIDS KILOBYTE (1024 bytes)
MIGHT MEGABYTE (1024 kbs)
GET GIGABYTE (1024 mgs)
TIRED TERABYTE (1024 gbs)
PRETTY PETABYTE (1024 tbs)
EASILY EXABYTE (1024 pbs)

6. Which System (Input/Output/Processing/Storage)
Use the slides that follow to fill in the other rows like the example Mouse Row. Look up any information that is missing from the slides! COMPLETE THE CHART.
Component
Which System (Input/Output/Processing/Storage)
What it does
Variations Available
Processor
Operating System
Memory
Hard Drive
Optical Drive
Modem
Monitor
Video Card
Sound Card
Speakers
Keyboard
Mouse
Input System
Sends page-specific location info into the computer
Trackball, Wireless, Stylus, Cordless 3-D

7. The following slides give definitions you might need
The following slides give definitions you might need. You do not need to type on slides use them to find information for your assignments.

8. INPUT Devices
Any device used to send information into the computer.

9. Keyboard An input device used to input symbols, letters, and numbers
Can be Peripheral or built-in

10. Mouse An input device used to show position
Wired or battery-operated; Optical or track-ball
Built-in (Track-pad) or peripheral

11. Web Cam
Input Device used to send video and audio into the computer

12. oUTPUT devices
Any devices used to send information out of the computer.

13. Monitor An output device The display device used on desktop computers.
Peripheral or built-in

14. Video Card (also known as Graphics Card)
An expansion board that plugs into a personal computer to give it display capabilities.

15. Sound Card
An expansion board that enables a computer to manipulate and output sounds. Sound cards are necessary for nearly all CD-ROMs and have become commonplace on modern personal computers

16. Speakers Hardware used to amplify sound on a computer
Peripheral and/or built in

17. Processing Systems
The computer chip, CPU, or core; this does all of the computing.

18. Processor – THIS DOES THE COMPUTING
A single computer chip that contains all the electronic circuitry for performing a PC’s processing tasks.
Also known as the Core, the Chip, the CPU (Central Processing Unit)

19. Operating System – NOT HARDWARE
Software that coordinates the resources and activities of a computer.
Mac OS X
Windows – has 95% of the market!
Android OS’s

20. Modem Modulator-Demodulator
Translates Digital Signals to Analog (sound waves) and Analog to Digital
External or internal

21. STORAGE
Two Types of Storage:
Storage
Memory

22. Memory RAM and ROM Where data is held while it is being processed
RAM – Volatile/short-term
ROM – Non-volatile and holds program instructions

23. STORAGE = Hard Drive (Hard Disc Drive)
The main storage device in a computer
Where data/information is held when it is NOT being processed
Can also buy External Hard Drives to increase storage
Cloud Storage

24. Storage - Optical Drive
Uses lasers to read and write to a disc.

25. Storage - fLASH Drive
Electronic and peripheral storage

26. Activity Choose 1 of the interviews/scenarios to use for the project
You will give the buyer 3 options of what to buy (make a chart)
You will point out the advantages and disadvantages of each choice
You will end with telling them what you think is their best buy, AND WHY
Same groups as last time.

27. Scenarios
Family 1 – Need a computer for a college student. Needs to take it to classes. It may get bumped and dropped. Wants a touch-screen and a wireless capability. Won’t do much gaming on this computer. Can spend around $500.
Family 2 – Need a PC for a Christmas gift for Grandpa, who likes to his family, do family history, and buy and sell cars online in his spare time. It will stay in his home-office. The family wants to spend less than $500.
Family 3 – This is a single person who is into programming and video gaming. He wants the computer to be Bluetooth-capable and top-of- the-line. He says he can only spend about $1000.
Family 4 – This family wants a computer for their 3 elementary-aged students to use for homework and academic games. It will stay at a desk in their family room. They want to spend less than $500.

28. Example Computer comparison chart
Dell Inspiron 3000
MacBook
Laptop or Desktop
2-in-1 Laptop and Touchscreen
Processor (CPU)
Intel Pentium N3710
Operating System
Windows 10
Memory (RAM)
4 GB – not expandable
Hard Drive (Storage)
500 GB hard drive
Optical Drive
None
Monitor or Screen Size
11.5” touchscreen; backlit
Video Card
Intel HD Graphics
Sound Card
Other Accessories – Bluetooth, Touchscreen, 2-in-1
2 USB ports; one is lightening fast; HDMI port; Memory card reader; webcam; wireless and Bluetooth; weighs 3.3 lbs
Cost
$349.99
Go to to research 3 different computers for your scenario. DO NOT use the Dell Inspiron 3000 that is listed here

29. Computer comparison chart
Complete this chart
Laptop or Desktop
Name the computer here
Processor (CPU)
Operating System
Memory (RAM)
Hard Drive (Storage)
Optical Drive
Monitor or Screen Size
Video Card
Sound Card
Other Accessories – Bluetooth, Touchscreen, 2-in-1
Cost
Answer this
THE SCENARIO I CHOSE:

30. Advantages/disadvantages of each computer THAT I CHOSE
Computer 1 (Put the computer name here):
Advantages:
Disadvantages:
Computer 2 (Put the computer name here):
Computer 3 (Put the computer name here):

31. My computer selection and why I chose it for this family
Write your paragraph here

32. After completing your Computer buying assignment, list types of computer hardware that make a computer more or less expensive, and why:
Your answer goes here:

33. How to turn This in for a grade
Save this to your computer as we do in class
Example: if your name is Alice Student, and you are in period 8, your file will be saved as 8StudentAliceUnit1Days3-4
Go to
Password is “student”
Add your file to the Dropbox
Congratulations! You are done!