Computer Fundamental Miscellaneous - Study Mode

[#731] In negative logic, the logic state 1 corresponds to
Correct Answer

(D) lower voltage level

Explanation

Solution: The 0 output indicates that the output is lower than the input then the input may be whatever. Therefore, in negative logic, the logic state 1 corresponds to the output 1 with lower voltage level.

[#732] Which of the following is a part of the Central Processing Unit?
Correct Answer

(D) Arithmetic Logic Unit (ALU)

Explanation

Solution: Arithmetic & Logic unit. The central processing unit (CPU) or processor is the unit which performs most of the processing inside a computer.

[#733] The least expensive OCR units can read
Correct Answer

(C) marks

Explanation

Solution: The least expensive OCR units can read to marks. OCR stands for "Optical Character Recognition." It is a technology that recognizes text within a digital image. It is commonly used to recognize text in scanned documents and images.

[#734] The input unit of a computer
Correct Answer

(A) feeds data to the CPU or memory

Explanation

Solution: In computer input unit is defined as an input device, a piece of computer hardware apparatus used to supply a data processing system including a computer or information device with control and data signals.
Examples of input device: Mouse, keyboards, scanners, joysticks, and digital cameras.

[#735] File specification books are created primarily for the use of
Correct Answer

(B) programmers

Explanation

Solution: File specification books are created primarily for the use of programmers. A programmer is an individual that writes/creates computer software or applications by giving the computer specific programming instructions.