If you're talking about computers, it's a bit. Bit -> byte -> kilobyte -> megabyte, etc.
If you're talking about self storage units, it's a 5' x 5' locker.
The smallest addressable unit of storage on a disk is called a sector.
The smallest storage access unit on an IDE hard drive is a sector.
The smallest unit of measurement used to describe the storage capacity of a computer is a "bit".
One bit.
bit
The largest DVD Storage unit available at Target holds up to 250 DVDs. The smallest holder holds 15 DVDs.
The smallest unit of information storage is a bit, which can represent either a 0 or a 1 in binary code. Multiple bits are combined to form larger units of storage like bytes, which typically consist of 8 bits.
A byte is the smallest storage size, made up of only 8 bits.
If it is a molecular compound, the smallest unit is called a molecule. If it is an ionic compound, the smallest unit is called a formula unit.
This smallest unit is the atom.
A cell is the smallest unit of an organism
Smallest unit of a compound is a molecule.