1.3g Serial vs. Sequential vs. Random Access

Serial Storage:

• No Structure
• No Sorting
• Takes ages to find data
• Brilliant for Saving
• Order That They arrive they are saved
• Cheapest method of storage
• Physical method of storage

Sequential Storage:

• A - Z and 1 - 9
• Long time to save
• Sorted
• Slightly more expensive method of storage

Index Sequential:

• An access/storage system where one index leads to the next.
• Very fast 

Random Access:

• Follows an hashing algorithm to store every piece of data is stored in a specific location
• Very Fast
• If it is not complicated enough it can result in clashes