1. Computers - The Journey Inside continues…

2. Bit by bit …
8 bits =
1 byte
1 KB =
kilobyte =
about 1,000 (one thousand) bytes
megabyte =
about 1,000,000 (one million) bytes
1 MB =
1 GB =
gigabyte =
about 1,000,000,000 (one billion) bytes
And, each byte holds 8 bits capable of forming 256 combinations of 1/0 - WOW!

3. Bit by bit …
What does the number that comes before one of these abbreviations KB, MB, & GB represent?
Yes, the computer's memory capacity.
For example, What does it mean if a computer has 64MB of RAM?
The computer can handle 64,000,000 (64 million) bytes of random access memory (that's 64,000,000 microscopic 8-bit panels).
Hard disk space is also measured in bytes.
So, explain what a 15GB hard drive means?
Hard drive has 15,000,000,000 (15 billion) bytes for storing memory.

4. Computers use a variety of devices to store information
STORAGE MEDIA:
Hard Drives (80 GB)
DVD (17 GB)
Thumb drives (16 MB - 4 GB)
CD ROM (640 MB)
Floppy Disks (1.44 MB)

6. Floppy Disk

8. CD-ROM

9. DVD
Digital Video Disk

11. Hard Drive

13. What is a USB Flash Drive?
Storage device, also known as:
Pen Drive
Thumb Drive
USB Key
1 to 4 gigabytes of information