A terabyte is equal to-

Q. A terabyte is equal to- 

1. 1 quadrillion bytes
2. 1 billion bytes
3. 1 million bytes
4. 1 trillion bytes

Answer: 1 trillion bytes 

The computer's memory consists of many millions of bytes. To make it easier, the unit K (for kilobytes) can be used to express memory capacity. One K equals 1,024. For example, 64K bytes of memory is the same as 65,536 (1,024 × 64 = 65,536) bytes. For larger memory capacities, the units mega and giga can be used. One megabyte of computer memory usually means 1024 kilobytes, which is 1,048,576 bytes, whereas one gigabyte means 1024 megabytes, which is 1,073,741,824 bytes. The size of the memory address that the computer uses limits the number of bytes it can handle.

• 1 Bit = Binary Digit
• 8 Bits = 1 Byte
• 1024 Bytes = 1 KB (Kilo Byte)
• 1024 KB = 1 MB (Mega Byte)
• 1024 MB = 1 GB(Giga Byte)
• 1024 GB = 1 TB(Terra Byte)
• 1024 TB = 1 PB(Peta Byte)
• 1024 PB = 1 EB(Exa Byte)
• 1024 EB = 1 ZB(Zetta Byte)
• 1024 ZB = 1 YB (Yotta Byte)
• 1024 YB = 1 (Bronto Byte)
• 1024 Brontobyte = 1 (Geop Byte)

Names of large numbers

Name	Short scale (US, Eastern Europe, English Canadian, Australian, and modern British)	Long scale (Western, Central Europe, older British, and French Canadian)
Million	106	106
Milliard		109
Billion	109	1012
Billiard		1015
Trillion	1012	1018
Quadrillion	1015	1024
Quintillion	1018	1030
Sextillion	1021	1036
Septillion	1024	1042
Octillion	1027	1048
Nonillion	1030	1054
Decillion	1033	1060
Undecillion	1036	1066
Duodecillion	1039	1072
Tredecillion	1042	1078
Quattuordecillion	1045	1084
Quindecillion	1048	1090
Sexdecillion	1051	1096
Septendecillion	1054	10102
Octodecillion	1057	10108
Novemdecillion	1060	10114
Vigintillion	1063	10120
Centillion	10303	10600