Memory Units — Set 5

Correct Answer: B. Bit

The bit is the most fundamental and smallest unit, representing a 0 or 1. A nibble consists of 4 bits and a byte consists of 8 bits. All other units like Kilobytes are built from these basic bits.

Correct Answer: B. 8 bits

A byte is a standard group of 8 bits used in computer systems. It is the basic unit for encoding a single character of text. This standard was established early in the history of digital computing.

Correct Answer: C. 1 Kilobyte

In the binary system, 1024 bytes make up one Kilobyte. Computers use powers of 2, and 2 raised to the power of 10 is 1024. This unit is commonly abbreviated as KB.

Correct Answer: C. 1 Megabyte

One Megabyte (MB) consists of exactly 1024 Kilobytes. It is approximately one million bytes of information. Most early computer software was measured in Megabytes.

Correct Answer: B. 4 bits

The correct answer is '4 bits'. A nibble is a four-bit aggregation, which is exactly half of a byte. It can represent a single digit of hexadecimal code. It is sometimes called a semi-byte or half-byte.

Correct Answer: B. 1024 MB

One Gigabyte is equal to 1024 Megabytes in the binary measurement system. It represents over one billion bytes of data storage. Modern hard drives are typically measured in Gigabytes or Terabytes.

Correct Answer: A. Bit < Nibble < Byte < KB

A bit is the smallest, followed by a nibble (4 bits), then a byte (8 bits). The Kilobyte (1024 bytes) is the largest among these four choices. This hierarchy is fundamental to understanding computer data storage.

Correct Answer: C. 1024 GB

One Terabyte is equivalent to 1024 Gigabytes. This unit is commonly used to describe the capacity of high-volume storage devices. It represents roughly one trillion bytes of information.

Correct Answer: A. Petabyte

The Petabyte (PB) is the next unit in the hierarchy after the Terabyte. It is equal to 1024 Terabytes or approximately one quadrillion bytes. Large data centers often measure their total capacity in Petabytes.

Correct Answer: B. 1,048,576 bytes

By multiplying 1024 bytes (1 KB) by 1024 (KB in an MB), we get 1,048,576 bytes. This is the precise number of bytes in one binary Megabyte. Manufacturers sometimes use 1,000,000 as a decimal approximation.