Who is credited with creating the stored program concept? - Avionics MCQ

Aeronautical & Aerospace Engineering : Avionics - Quiz(MCQ)

Who is credited with creating the stored program concept?

A)

Larry Page

B)

Alan Turing

C)

Ken Thompson

D)

John Von Neumann

Correct Answer : John Von Neumann

Explanation : Physicist John Von Neumann is generally credited with creating the stored program concept that is the basis of operation of all digital computers. Binary words representing computer instructions are stored sequentially in a memory to form a program. The instructions are fetched and executed one at a time at high speed.

Recently Updated in Avionics Questions

Which type of architecture uses different storage space for program code and the data?

A)

Split cell architecture

B)

Fragmented architecture

C)

Harvard architecture

D)

Von Neumann architecture

Correct Answer : Option (C) : Harvard architecture

Explanation : In a Harvard architecture microprocessor, there are two memories, a program or instruction memory, usually a ROM, and a data memory, which is a RAM. Also, there are two data paths into and out of the CPU between the memories. Because both instructions and data can be accessed simultaneously, very high-speed operation is possible.

What is the accessibility limitation of only one data or instruction set at a time from the memory called?

A)

Von Neumann limit

B)

Von Neumann bottleneck

C)

Von Neumann speed

D)

Von Neumann limitation

Correct Answer : Option (B) : Von Neumann bottleneck

Explanation : The accessibility limitation of only one data or instruction set at a time from the memory is called as Von Neumann bottleneck. This has the effect of greatly limiting the execution speed.

What is the reason for the need of high speed DSP?

A)

Easily programmable

B)

High sampling frequency

C)

Better processing capabilities

D)

Less power consumption at higher speeds

Correct Answer : Option (B) : High sampling frequency

Explanation : The time taken for input/output and the processing time together must be smaller than the sampling period to ensure the continuous flow of data. Since high sampling frequencies are needed for accurately converting the analog signal to digital, high speed DSP is a must.

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