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Technology Literacy
byte Quest Experiential Learning
Identify the following and write their names:
1. 2.
3. 4.
Measuring the Computer’s Memory
The basic unit for measuring the memory of a computer is the byte. A byte consists of a
group of eight bits, for example, 10001011, that is, 1 byte equals 8 bits. A group of 4 bits is
known as a nibble (half a byte), for example, 1001, that is, 1 nibble equals 4 bits.
Other units for measuring the computer’s memory are kilobyte, megabyte, gigabyte,
terabyte, and so on.
8 bits 1 byte 1024 bytes 1 Kilobyte (KB)
1024 Megabytes 1 Gigabyte (GB) 1024 Kilobytes 1 Megabyte (MB)
1024 Gigabytes 1 Terabyte (TB) 1024 Terabytes 1 Petabyte (PB)
1024 Exabytes 1 Zettabyte (ZB) 1024 Petabytes 1 Exabyte (EB)
1024 Zettabytes 1 Yottabyte (YB) 1024 Yottabytes 1 Brontobyte
1024 Brontobytes 1 Geopbyte
REFRESH
RAM is a temporary memory.
Information stored in ROM is permanent in nature.
Secondary memory is permanent in nature and is not directly accessed by the CPU.
The basic unit for measuring the memory of a computer is byte.
Other units for measuring the computer’s memory are kilobyte, megabyte, gigabyte, terabyte,
and so on.
Data Storage and Memory 11

