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Instructional Code and Addressing Modes in Computer Registers

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Instructional Code and Addressing Modes in Computer Registers

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Questions and Answers

What is the purpose of a common bus system in a computer?

To transfer information between registers and memory efficiently (correct)

To limit the number of registers in a computer

To eliminate the need for registers

To reduce the clock speed of the system

How are the outputs of seven registers and memory connected in a common bus system?

Based on binary values of selection variables (correct)

By using independent data paths

Through direct connections

Via the clock pulse transition

Which part of the computer receives data when its LD (load) input is enabled?

Common bus

Specific register with enabled input (correct)

Control unit

Memory unit

What happens when the content of AR or PC is applied to the 16-bit common bus?

Only 12 least significant bits are transferred Signup and view all the answers

How is the increment operation achieved in a common bus system?

By enabling the count input of the counter Signup and view all the answers

What does OUTR do in relation to information exchange in a common bus system?

Receives information from AC and delivers it to an output device Signup and view all the answers

What does the Program Counter (PC) do?

Holds the address of the next instruction to be read from memory. Signup and view all the answers

Which register holds the instruction code for manipulation?

Instruction Register (IR) Signup and view all the answers

What is the purpose of the Accumulator register (AC) in a computer system?

To manipulate data. Signup and view all the answers

Why does a branch instruction transfer the address part to the Program Counter (PC)?

To calculate the address of the next instruction for execution. Signup and view all the answers

What is the purpose of the Address Register (AR) in a computer system?

Holds the address of an instruction in memory. Signup and view all the answers

What is used to calculate the address of the next instruction after executing the current one?

Program Counter (PC) Signup and view all the answers