Operating system is sets of computer programs that manage the hardware and software resources of a computer. The operating system performs basic tasks such as controlling and allocating memory, prioritizing system requests, controlling input and output devices, facilitating networking and managing file systems.
A bit is a binary digit, taking a value of either o or 1. The binary digit is computer code, by which computer always communicate and perform your tasks. A collection of 1024 Bytes is called a Kilobyte (Kb). 1024 Kb makes a Megabyte (Mb) — that’s 8,388,608 bits. 1024 Mb makes a Gigabyte (Gb) and 1024 Gb makes a Terabyte. That Terabyte is a massive 1,099,511,627,776 bytes