11th Computer Science Book back one mark answer pdf 2022-2023

Here we given example chapter 11th computer science book back one mark answer.

Which of the following is said to be the brain of a computer?

(a) Input devices       (b) Output devices               (c) Memory device   (d) Microprocessor

Which of the following is not the part of a microprocessor unit?

(a) ALU                     (b) Control unit                     (c) Cache memory  (d) register

How many bits constitute a word?

(a) 8                            (b) 16                         (c) 32               (d) Determined by the processor used.

Which of the following device identifies the location when address is placed in the memory address register?

(a) Locator                 (b) Encoder                           (c) Decoder               (d) Multiplexer

Which of the following is a CISC processor?

(a) Intel P6                 (b) AMD K6                         (c) Pentium III        (d) Pentium IV

Which is the fastest memory?

(a) Hard disk             (b) Main memory                 (c) Cache memory  (d) Blue-Ray disk

How many memory locations are identified by a processor with 8 bits address bus at a time?

(a) 28                          (b) 1024                                 (c) 256                       (d) 8000

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