Memory Unit

 

When a computer performs a task. It store data in the memory. The data that is stored in the memory is internally represented in the form of 0s and 1s each 0 or 1 is called a byte. The following explain the various term used to measure storage or memory capacity.

Bit: - A bit is the smallest unit of information that a computer handles. A single bit can hold only one of two single bit can hold only one of two values, 0 and 1. One of the two values is always present. A single bit conveys little meaningful information. However, you can obtain more meaningful information by combing consecutive bits into larger using units.

Byte: -A byte is combination of eight bits arranged in a particular sequence each sequence represent a single character, symbol, digit or letter. A byte forms the basic units that is used to measure the storage capacity of storage devices.

Kilobyte: - A kilobyte is equal to 1,024 bytes. most of the user data stored in a computer, such as simple e-mail message or a text file, occupies storage space of a few kilobytes.

Megabyte: -A megabyte is equal to 1,024 kb. The amount of information contained in 1 MB is approximately equal to a complete text books.

Gigabyte: - One gigabyte is equal to 1024 MB, which are approximately billion bytes. Most computers today have disks with large capacity. That is measured in gigabyte and notes huge storage capacity. For example, a video film stored on a computer can occupy more than 1 GB space.

Terabyte: - One terabyte is equal to 1024 GB, approximately a trillion byte. Storage devices having capacities in terabyte are generally used by organizations that need to store large volumes of data. A terabytes of memory space can contain the complete text of a large number of books.