21. Central Processing Unit (CPU) does not include which of the following?
(A) Control Unit
(B) Arithmetic Logic Unit
(C) Memory Unit
(D) Output Unit
Answer:
(D) Output Unit
Explanation:
The CPU consists of the Arithmetic Logic Unit (ALU), the Control Unit (CU), and primary memory registers. The Output Unit (like a monitor or printer) is an external peripheral, not part of the CPU.
22. In digital imaging, the smallest unit/item of information in an image is called as:
(A) Ray
(B) Pixel
(C) Point
(D) Focal Point
Answer:
(B) Pixel
Explanation:
A pixel (short for picture element) is the smallest controllable element and the basic logical unit of programmable color on a digital display or in a digital image.
23. Which of the following is NOT a benefit of ICT?
(A) It helps in most of the human activities
(B) It helps in development goals
(C) It helps in acquiring information directly from original sources
(D) It helps in social distancing of people
Answer:
(D) It helps in social distancing of people
Explanation:
While ICT facilitated remote work during the pandemic, “social distancing” is not an inherent or primary designed benefit of Information and Communication Technology as a general concept.
24. The primary storage is referred to as ________ because it is possible to randomly select and use any location of the memory directly to store and retrieve data.
(A) ROM
(B) RAM
(C) PROM
(D) EPROM Answer:
(B) RAM
Explanation:
RAM stands for Random Access Memory, meaning the system can access any data cell directly and quickly, regardless of its physical location.
25. ________ involves reading text from paper and translating the images into a form that the computer can manipulate.
(A) MICR
(B) OCR
(C) OMR
(D) MCIR
Answer:
(B) OCR
Explanation:
Optical Character Recognition (OCR) is the technology used to read and convert printed or handwritten text on paper into machine-encoded text.
