1. Junior High Media Studies
Computer Basics

2. CPU The brains of the computer is the microprocessor.
The microprocessor is often referred to as the CPU (Central Processing Unit).
The processor is one of the most important parts of the computer.
The microprocessor controls how data is sorted and directs the flow of data.

3. Memory Computer Memory comes in many different shapes and sizes
There are a few basic types:
RAM, ROM, virtual, cache, and long-term storage (like hard drives)
Computer memory is measured in bytes.
A single byte is made up of a series of 1's and 0's normally traveling in pairs of eight.

4. Bits & Bytes 8 bits = 1 byte 1000 bytes 1 kilobyte 1000 kilobytes
1 megabyte
1000 megabytes
1 gigabyte
1000 gigabytes
1 terabyte

5. Memory - ROM
Read-Only Memory is permanent and nonvolatile memory. Nonvolatile means it does not disappear when the computer is shut off. It also cannot be erased or changed in anyway.
This is similar to humans remembering how to ride a bike after many years

6. Memory - RAM
Random-Access Memory works only when the computer is turned on.
This memory is vital to the computer because it controls the moment by moment processes.
The first thing that goes into RAM is the OS (operating system). Next for the RAM might be a game, or the Internet browser, or some type of software that you want to use.

8. Storage – Hard Drive
A stack of round metal disks called platters encased in a metal air tight shell.
The hard drive's function is to store all the files, and software the computer will ever use.
Any file or software program used by RAM will most likely come from this drive.

9. Optical Storage – CDs and DVDs and Blu-rays
CD's function much like hard drive in that they store large amounts of memory.
What separates them is their mobility and optical storage technology.
Their storage capacity is very limited compared to hard drives.
CDs = ~650MB
DVDs = 4.34GB~7.95GB
Blurays = 25GB~50GB

10. Input
There are a lot of different ways to give interact with computers

11. Output Computers can also send a lot of information to various outputs
This is what we receive from the computer

12. Define the Following Define the following terms in your own words.
Input Device
Output Device
Software
Hardware
Storage Device
Memory
Multi-tasking

13. Imagine a World Without Computers
With at least 3 full sentences, answer these two questions:
What would be different? 
How would this make life more challenging?