What is a block as it relates to storage on disk or tape?
operating systems such as Unix, you can determine the optimum block size for your applications. Additionally, relational databases allow you to build your database blocks of a single, or in some cases multiple block sizes for the faster and easier storage and reteival of data. The blocks are easier to address and maintain by the OS that just putting everything in a raw data file. It’s like a house on a street in a town. If you’re stored on your house on your street, in your city, in your state, then the OS knows exactly where to come find you. Now, for the canned version from wiki (whick looks so much prettier): In computing (specifically data transmission and data storage), a block is a sequence of bytes or
