Computer 9th Chap 1 : Topic 1.5 - Maryam Publications

Computer Chapter 1 : Topic 1.5

Data Transmission in Computer Systems

1 / 10

In a computer system, when the processor sends information to memory while simultaneously receiving instructions, which architecture feature makes this communication possible?

A) Storage devices only

B) Application software

C) Multiple communication pathways called buses

D) Output peripherals

2 / 10

During the execution of a program, which bus is primarily responsible for carrying the actual data being transferred between the CPU and memory?

A) Expansion Bus

B) Address Bus

C) Control Bus

D) Data Bus

3 / 10

When the CPU needs to access a specific memory location, which type of bus is used to identify the destination address before data transfer occurs?

A) Register Bus

B) System Clock

C) Address Bus

D) Data Bus

4 / 10

A computer component sends a signal indicating whether data should be read from memory or written into memory. Which bus carries such instructions?

A) Data Bus

B) Control Bus

C) Address Bus

D) USB Bus

5 / 10

If the width of a data bus is increased from 8 bits to 16 bits, what is the most likely effect on data transmission?

A) The CPU clock speed decreases

B) More data can be transferred at one time

C) The control signals disappear

D) Fewer memory locations become available

6 / 10

Why does a computer require both an address bus and a data bus instead of using a single bus for all communication tasks?

A) To reduce the need for memory devices

B) To eliminate processing instructions

C) To increase monitor resolution

D) To separate location information from actual data being transferred

7 / 10

When a key is pressed on a keyboard, data eventually reaches the CPU for processing. Which sequence best represents the transmission process?

A) Keyboard → CPU → Bus → Memory

B) Keyboard → Bus → CPU → Memory

C) Memory → Keyboard → CPU → Bus

D) CPU → Keyboard → Memory → Bus

8 / 10

A computer engineer wants to increase the number of memory locations that the processor can directly access. Which bus characteristic should be expanded?

A) Size of the Keyboard Buffer

B) Width of the Data Bus

C) Width of the Address Bus

D) Number of Control Signals

9 / 10

During data transmission inside a computer system, what is the primary role of the control unit of the CPU?

A) Coordinate and manage the movement of data between components

B) Generate graphics output

C) Increase storage capacity

D) Store files permanently

10 / 10

Which statement best explains why buses are considered essential components in computer architecture and internal communication?

A) They replace the need for processors and memory units

B) They permanently store operating systems and applications

C) They convert digital data into printed documents

D) They provide communication channels between hardware components

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