Question

Memory is a device that stores ___________.
1. Analog information
2. Binary voltage
3. Binary information
4. Analog and binary information

Answer 1

Correct Answer - Option 3 : Binary information

Computer memory:

• It is a device that is used to store data or programs (sequences of instructions) on a temporary or permanent basis for use in an electronic digital computer.
• Computers represent information in binary code, written as sequences of 0s and 1s.
• Each binary digit may be stored by any physical system that can be in either of two stable states, to represent 0 and 1. Such a system is called bi-stable.

• Computers do all calculations using a code made of just two numbers; 0 and 1. This system is called binary code.
• Bits and bytes are the basic building blocks of memory. "Bit" stands for binary digit.
• A bit is a one or a zero, on or off, which is how all computer information is stored. A byte is made up of eight bits.
• A nibble (also spelled 'nybble') is 4 bit, half of a byte.

Unit of Memory	Abbreviation	Exact Memory Amount
Binary Digit	Bit, b	1 or 0
Byte	B	8 bits
Kilobyte	KB or K	1024 bytes
Megabyte	MB	1024 KB
Gigabyte	GB	1024 MB
Terabyte	TB	1024 GB