Question

Terabyte (TB) is the unit of measurement for

• A. Light wave
• B. Speed of aircraft
• C. Computer memory
• D. Bandwidth

Hint:

Keep the data units in order: Bit (smallest), Byte (8 bits), Kilobyte (KB), Megabyte (MB), Gigabyte (GB), Terabyte (TB), Petabyte (PB). Each is roughly 1000 times larger than the previous one.

Answer 1

The Correct Option is C

Step 1: Define Terabyte (TB). A terabyte is a unit of digital information storage. Conventionally, 1 Terabyte = 1000 Gigabytes or, in binary terms, \(2^{40}\) bytes (1024 Gigabytes).
Step 2: Evaluate the options.

(A) Light wave: Measured by wavelength (e.g., nanometers) or frequency (e.g., Hertz).
(B) Speed of aircraft: Measured in units of distance per time (e.g., kilometers per hour, knots).
(C) Computer memory: This includes RAM and storage devices like hard drives (HDDs) and solid-state drives (SSDs), which are measured in Bytes, Kilobytes (KB), Megabytes (MB), Gigabytes (GB), and Terabytes (TB).
(D) Bandwidth: Data transfer rate is measured in bits per second (bps) or Bytes per second (Bps) and their multiples (e.g., Mbps, Gbps).
Thus, a Terabyte is a unit for measuring computer memory and data storage capacity.