Units of Computer Memory Measurements

What is the memory measurement unit of Computer?

You all know that a computer only understands the binary language.The information stored in the computer is in the form of 0`s and 1`s called bits.
In computing and telecommunications, a unit of information is the capacity of some standard data storage system or communication channel, used to measure the capacities of other systems and channels. In information theory, units of information are also used to measure the information contents or entropy of random variables.

The most common units are the bit, the capacity of a system which can exist in only two states, and the byte (or octet), which is equivalent to eight bits. Multiples of these units can be formed from these with the SI prefixes (power-of-ten prefixes) or the newer IEC binary prefixes (binary power prefixes). Information capacity is a dimensionless quantity.


  • ControlAltDelete (often abbreviated to Ctrl+Alt+Del, also known as the “three-finger salute”)

 is a computer keyboard command on IBM PC compatible computers, invoked by pressing the Delete key while holding the Control and Alt keys: Ctrl+Alt+Delete. The function of the key combination differs depending on the context but it generally interrupts or facilitates interrupting a function. For instance, in pre-boot environment (before an operating system starts) or in DOS, Windows 3.0 and earlier versions of Windows or OS/2, the key combination reboots the computer. Starting with Windows 3.1, the command invokes a task manager or security related component that facilitates ending a Windows session.

  • On some Linux-based operating systems including Ubuntu and Debian, Control+Alt+Delete is a shortcut for logging out.

On Ubuntu Server, it is used to reboot a computer without logging in.

  • Ctrl+Alt+Delete is not a keyboard shortcut on macOS platforms. Instead, ⌘ Command+⌥ Option+Esc can be used to bring up the Force Quit Menu. However, in the macOS Server logon screen, pressing Control+⌥ Option+Delete (as the Option key is the equivalent of Alt key on a Mac keyboard) will show an alert saying “This is not DOS.”Control+⌘ Command+Power immediately restarts the computer.