Electronics and Communication Engineering (ECE) Exam  >  Electronics and Communication Engineering (ECE) Tests  >  Topicwise Question Bank for Electronics Engineering  >  Test: Semiconductor Memories - 2 - Electronics and Communication Engineering (ECE) MCQ

Test: Semiconductor Memories - 2 - Electronics and Communication Engineering (ECE) MCQ


Test Description

10 Questions MCQ Test Topicwise Question Bank for Electronics Engineering - Test: Semiconductor Memories - 2

Test: Semiconductor Memories - 2 for Electronics and Communication Engineering (ECE) 2024 is part of Topicwise Question Bank for Electronics Engineering preparation. The Test: Semiconductor Memories - 2 questions and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus.The Test: Semiconductor Memories - 2 MCQs are made for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Semiconductor Memories - 2 below.
Solutions of Test: Semiconductor Memories - 2 questions in English are available as part of our Topicwise Question Bank for Electronics Engineering for Electronics and Communication Engineering (ECE) & Test: Semiconductor Memories - 2 solutions in Hindi for Topicwise Question Bank for Electronics Engineering course. Download more important topics, notes, lectures and mock test series for Electronics and Communication Engineering (ECE) Exam by signing up for free. Attempt Test: Semiconductor Memories - 2 | 10 questions in 30 minutes | Mock test for Electronics and Communication Engineering (ECE) preparation | Free important questions MCQ to study Topicwise Question Bank for Electronics Engineering for Electronics and Communication Engineering (ECE) Exam | Download free PDF with solutions
1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Semiconductor Memories - 2 - Question 1

Which of the following is a non-volatile memory?

Detailed Solution for Test: Semiconductor Memories - 2 - Question 1

The correct answer is Electrically Erasable Programmable Read-Only Memory (EEPROM)

  • EEPROM stands for Electrically Erasable Programmable Read-Only Memory.
  • It is a non-volatile memory in which the information stored Is retained even after the power goes off.
  • A special type of PROM in which the information stored in it can be erased by exposing it to an electrical charge at one byte at a time. 
  • EEPROM generally offers excellent capabilities and performance.
  • EEPROMs are constructed as arrays of floating-gate transistors.
Test: Semiconductor Memories - 2 - Question 2

Memory chip NOVRAM is

Detailed Solution for Test: Semiconductor Memories - 2 - Question 2

NOVRAM (Non-Volatile Random Access Memory):

  • It is a type of memory that retains its contents when power is turned off.
  • One type of NOVRAM is SRAM that is made non-volatile by connecting it to a constant power source such as a battery.
  • Another type of NVRAM uses EEPROM chips to save its contents when power is turned off. In this case, NVRAM is composed of a combination of SRAM and EEPROM chips.
Test: Semiconductor Memories - 2 - Question 3

The address bus width of a memory of size 1024 × 8 bits is

Detailed Solution for Test: Semiconductor Memories - 2 - Question 3

Concept:

The total memory can be calculated from the number of address lines and date-lines, i.e.

Total Memory = 2address lines × Data Lines

Calculation:

There are 1024 memory location

Now,

 1024 = 210

Hence, the address bus width is 10 bits.

The data bus of 8 bits will be required to write/read data at each 8-bit memory location.

Test: Semiconductor Memories - 2 - Question 4

If the computer has 32 k words, then this memory unit has _______ memory locations.

Detailed Solution for Test: Semiconductor Memories - 2 - Question 4

Concept:

1 kB = 1024 bytes

One memory location of computer occupies 1 byte of memory.

So, to occupy 32 kB of memory = 32 × 1024 = 32768 bytes are required.

∵ 1 byte = 1 memory location

∴ 32 kB memory unit of computer will require 32768 memory locations.

Test: Semiconductor Memories - 2 - Question 5

A given memory chip has 14 address pins and 8 data pins. It has the following number of locations.

Detailed Solution for Test: Semiconductor Memories - 2 - Question 5

Concept:

Memory Chips:

  • The number of address pins is related to the number of memory locations.
  • The data pins are typically bi-directional in read-write memories. The number of data pins is related to the size of the memory location.

Given that, 

Address pins= 14 (is related to the number of memory locations)

Data pins= 8 (It is related to the size of the memory location)

So For 'N-Bits' address pins, the number of locations that will accommodate is 2N.

So For '14-Bits' address pins, the number of locations that will accommodate is 214.

Hence the correct answer is 214.

Test: Semiconductor Memories - 2 - Question 6

Which of the following is fastest memory?

Detailed Solution for Test: Semiconductor Memories - 2 - Question 6

Cache Memory :

  • Cache Memory is a special very high-speed memory.
  • It is used to speed up and synchronizing with a high-speed CPU. Cache memory is costlier than main memory or disk memory but economical than CPU registers.
  • Cache memory is an extremely fast memory type that acts as a buffer between RAM and the CPU.
  • It holds frequently requested data and instructions so that they are immediately available to the CPU when needed.
  • Cache memory is used to reduce the average time to access data from the Main memory.
Test: Semiconductor Memories - 2 - Question 7

Programmable logic array has

Detailed Solution for Test: Semiconductor Memories - 2 - Question 7

PLD’s (Programmable Logic Devices) are the circuits that contain an array of AND gates and another array of OR gates. There are three kinds of PLD’s depending upon the type of array, i.e.

  • Programmable Read-Only Memory
  • Programmable Array Logic
  • Programmable Logic Array (PLA)
  • ROM is a memory device that stores the binary information permanently.

Programmable Logic Arrays (PLA’s) implement two-level combination logic in sum-of-products (SOP) form.

PLA’s are Programmable AND array followed by Programmable OR array as shown:

PAL: Programmable AND array followed by fixed OR array

PROM:

  • It is known as programmable read-only memory
  • It includes both AND array & OR array
  • Out of these two arrays AND array is fixed and OR array is programmable.
Test: Semiconductor Memories - 2 - Question 8

PLA consists of _____.

Detailed Solution for Test: Semiconductor Memories - 2 - Question 8

Programmable logic array (PLA):

It is a kind of PLD (Programmable logic device) used to implement a combinational logic circuit.

1.It has a set of programmable AND gate planes which link a set of programmable OR gate planes.

Hence option (B) is the correct answer.

2.It has 2N AND Gate for N-input variable and form or Gates it has m output.

PLA Design:

The memory IC used in a digital system is selected or enabled only for the range of address assigned to it and this process is called memory decoding.

It denotes the memory to be selected for a specific address.

Test: Semiconductor Memories - 2 - Question 9

In digital Electronics a byte is a collection of

Detailed Solution for Test: Semiconductor Memories - 2 - Question 9

*Answer can only contain numeric values
Test: Semiconductor Memories - 2 - Question 10

In an 8085 microprocessor, the number of address lines required to access a 16 K byte memory bank is


Detailed Solution for Test: Semiconductor Memories - 2 - Question 10

Concept:

An address line usually refers to a physical connection between a CPU and memory.

It specifies which address to access in the memory.

For an ‘n’ bit address line, we can access 2n memory locations.

Application:

Given, the number of memory locations = 16 kB

i.e. 2n = 16 kB

2n = 16 × 1 kB

2n = 24 × 210

2n = 214

So, n = 14 bits.

195 tests
Information about Test: Semiconductor Memories - 2 Page
In this test you can find the Exam questions for Test: Semiconductor Memories - 2 solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Semiconductor Memories - 2, EduRev gives you an ample number of Online tests for practice

Up next

Download as PDF

Up next

Download the FREE EduRev App
Track your progress, build streaks, highlight & save important lessons and more!