Explanation

• A Voice Response Unit (VRU) is an output device that produces an audio response using words or messages recorded on a magnetic medium.
• It converts stored voice messages into audible output for the user.

Additional information:

• Voice Recognition Unit is an input device used to recognize spoken words.
• Magnetic tape is a storage medium.

Last verified on 07-08-2026

Explanation

• The Operating System is built directly on the hardware.
• It acts as an interface between the computer hardware and application software.
• The OS manages resources such as the CPU, memory, storage, and input/output devices.
• Application software runs on top of the operating system.
• Examples of operating systems include Windows, Linux, macOS, and Android.

Last verified on 07-08-2026

Explanation

• Coded entries used to gain access to a computer system are called passwords.
• Definition: A secret string of letters, numbers, or symbols.
• Purpose: User verification and account security.

Last verified on 07-08-2026

Explanation

• Diagnostic software is used to detect, identify, and troubleshoot problems in a computer system.
• It can check hardware and software for errors or faults.
• Common examples include memory diagnostics, disk-checking, and system diagnostic tools.

Additional information:

• Utility software → Performs maintenance and optimization tasks.

Explanation

• One Gigabyte (GB) =  1024 Megabytes (MB)

Additional information:

The size of information in the computer is measured in Kilobytes (KB), Megabytes (MB), Gigabytes (GB), and Terabytes (TB).

• 1 Kilobyte (KB) = 1024 bytes
• One Megabyte (MB) = 1024 Kilobytes (KB
• One Gigabyte (GB) =  1024 Megabytes (MB)
• One Terabyte (TB)= 1024 Gigabytes (GB).

Last verified on 07-08-2026