# MCQ in Computer Fundamentals Part 11 | ECE Board Exam

(Last Updated On: January 7, 2021) This is the Multiple Choice Questions Part 11 of the Series in Computer Fundamentals as one of the Electronics Engineering topic. In Preparation for the ECE Board Exam make sure to expose yourself and familiarize in each and every questions compiled here taken from various sources including but not limited to past Board Exam Questions in Electronics Engineering field, Electronics Books, Journals and other Electronics References.

#### MCQ Topic Outline included in ECE Board Exam Syllabi

• MCQ in analog and Digital System
• MCQ in Binary Number System
• MCQ in Boolean Algebra
• MCQ in Mathematical Logic and Switching Networks
• MCQ in Basic digital Circuits (logic gates, flip-flops, multivibrators, etc)
• MCQ in Static and dynamic Memory Devices
• MCQ in Programming and Machine Languages
• MCQ in Information and Acquisition Processing
• MCQ in Analog / Digital Conversion
• MCQ in Computer Networking

#### Continue Practice Exam Test Questions Part 11 of the Series

Choose the letter of the best answer in each questions.

501. First commercial computer introduce in 1953 that uses valves.

A. IBM-1400

B. UNIVAC

C. IBM-701

D. ENIAC

Solution:

502. The first electronic computer and was completed in 1946.

A. ENIAC

B. UNIVAC

C. EDVAC

D. Whirlwind I

Solution:

503. What is a group of circuits that provides timing and signals to all operations in the computer?

A. Output unit

B. Memory unit

C. Control unit

D. Input unit

Solution:

504. Refers to the part of computer that performs mathematical operations.

A. CPU

B. Flip-flop

C. Assembly language

D. ALU

Solution:

505. Convert the given binary number 1010011.01 to octal system.

A. 511.1

B. 511.2

C. 123.1

D. 123.2

Solution:

506. The binary equivalent of the hexadecimal number ECE.5

A. 1110 1100 1110.0101

B. 1110 1100 1110.101

C. 1101 1100 1101.101

D. 1101 1100 1101.0101

Solution:

507. Convert (1111 1111 1111 1111)2 to decimal number.

A. 32 767

B. 32 768

C. 65 535

D. 65 536

Solution:

508. Get the sum of (110.1101)2 and (11.01)2.

A. 1010.0101

B. 1010.0001

C. 1101.0101

D. 0111.1010

Solution:

509. What is the difference between the given binary numbers, 110.1101 and 11.01?

A. 110.0000

B. 111.1010

C. 11.1010

D. 11.1001

Solution:

510. Find the radix-minus one complement of (110.1101)2.

A. 111.0010

B. 010.0011

C. 1.001

D. 001.0010

Solution:

511. Mathematics used in expressing, analyzing, and designing of digital electronic circuits.

A. Boolean algebra

B. Numerical methods

C. Statistical approach

D. Logical mathematics

Solution:

512. What is the logic circuit having two or more inputs but only output, with high output of any or all inputs are high, with low output only if all inputs are low?

A. AND gate

B. OR gate

C. NOR gate

D. NAND gate

Solution:

513. _____________ refers to the class of logic circuit containing flip-flops.

A. Combinational

B. Sequential

C. Linear

D. Feedback

Solution:

514. What do you call a circuit that changes pure binary code into ASCII?

A. Decoder

B. Encoder

C. Demultiplexer

D. Code converter

Solution:

515. Gate with HIGH output level every time one of its inputs goes LOW.

A. NOR gate

B. NAND gate

C. XNOR gate

D. B and C

Solution:

516. What logic gate that gives an output of logic one if there is an odd number of 1’s at the input?

A. NOR gate

B. NAND gate

C. XOR gate

D. XNOR gate

Solution:

517. A circuit that converts the input logic level to its complement.

A. Inverter

B. NOR gate with all inputs tied

C. NAND gate with all inputs tied

D. All of these

Solution:

518. Known as universal gates.

A. OR and AND

B. AND and NAND

C. OR and NOR

D. NOR and NAND

Solution:

519. How many NAND-gates are needed to have an AND function?

A. 2

B. 3

C. 4

D. 5

Solution:

520. The number of logic gates of the same family that can be connected to the input of a particular gate without degrading the circuit performance.

A. Fan-in

B. Fan-out

C. Input-drive

D. Input noise immunity

Solution:

521. Refers to the number of logic gate of the same family that can be driven by a single output of a particular logic gate.

A. Output drive

B. Output noise margin

C. Fan-in

D. Fan-out

Solution:

522. A bipolar logic family that uses resistors as its input circuit.

A. RTL

B. DTL

C. ECL

D. TTL

Solution:

523. Logic family that uses diodes and transistors as its circuit elements. This logic family is more resistant to noise than RTL.

A. DTL

B. TTL

C. ECL

D. I2L or IIL

Solution:

524. What is the memory element used in clocked sequential logic circuit?

A. Gates

B. Flip-flop

C. Static-RAM

Solution:

525. Determine which item is not a storage device.

B. CD-ROM

C. Diskettes

D. Magnetic tape

Solution:

526. What do you call the duration within it takes to read the content of a memory location after it has been addressed?

A. Execution time

B. Data rate

C. Cycle time

D. Access time

Solution:

527. ___________ refers to a circuit that stores pulses and produces an output pulse when specified numbers of pulses are stored.

A. Counter

B. Register

C. Flip-flop

D. Buffer

Solution:

528. Flip-flop that changes state every time the input is triggered.

A. RS flip-flop

B. Master slave flip-flop

C. T flip-flop

D. JK flip-flop

Solution:

529. Group of flip-flops used to store more bits.

A. Register

B. ROM

C. PROM

D. All of these

Solution:

530. Memory whose contents are lost when, electrical power is removed.

A. Nonvolatile

B. Temporary

C. Dynamic

D. Volatile

Solution:

531. Type of memory wherein the data are permanently stored. Usually the storing of data is done during manufacturing of the component.

A. ROM

B. PROM

C. EPROM

D. EEPROM

Solution:

532. A type of ROM that allows data to be written into the device by a programmer. After it has been programmed it cannot be reprogrammed again.

A. PROM

B. EPROM

C. EEPROM

D. A and B above

Solution:

533. Semiconductor-based, volatile data storage device that can be written and read randomly.

A. RAM

B. PROM

C. EPROM

D. EEPROM

Solution:

534. A device/circuit used to separate two or more signals from one line.

A. Decoder

B. Demodulation

C. Demodifier

D. Demultiplexer

Solution:

535. ________________ is a sequence of instructions that tells the computer machine on how available data shall be processed.

A. Program

B. RAM

C. Command

D. Flowchart

Solution:

536. Diagram showing procedures that are followed, and actions taken is called

A. Functional block diagram

B. Circuit diagram

C. Flow chart

D. Schematic diagram

Solution:

537. What is the medium of communication with a computer where programs are written in mnemonics?

A. Assembly language

B. High level language

C. Machine language

D. Low-level language

Solution:

538. A _________ is a program which converts instruction written in a source language into machine code, which can be read and acted upon by the computer.

A. Source code

B. Assembler

C. Application software

D. Compiler

Solution:

539. ___________ is a software that converts a high level language program into machine or assembly language program.

A. ALU

B. Cross-assembler

C. Compiler

D. CPU

Solution:

540. A very high-dense and probably the most versatile integrated circuit used in digital electronics. It is known to function as the central processing unit of most computer applications.

A. Microcomputer

B. Micro-integrated

C. Macro-integrated

D. Microprocessor

Solution:

541. The smallest computer in terms of physical size

A. Microcomputer

B. Minicomputer

C. Mainframe

D. Host computer

Solution:

542. A logic/digital circuit that generates an output code for every input signal.

A. Enhancer

B. Compressor

C. Encoder

D. Decoder

Solution:

543. An instruction that causes the program to go another task.

A. FLIP

B. SUB

C. JUMP

D. MOVE

Solution:

544. Machine instructions represented by mnemonics is considered as

A. Machine language

B. Personal language

C. Assembly language

D. Coded language

Solution:

545. Translator from high-level program to machine instructions

A. Assembler

B. Converter

C. Encoder

D. Compiler

Solution:

546. Assemble language to machine language translator

A. Assembler

B. Converter

C. Compiler

D. Transponder

Solution:

547. A program in a programming language, as written by the programmer.

A. Source program

B. Object program

C. Machine program

D. Original program

Solution:

548. A source program can run in computer only after translation into a machine code by a compiler. This machine code is referred as the

A. Source program

B. Object program

C. Interpreter

D. Mnemonic

Solution:

549. A sequence of instructions or statements designed to tell the computer how to carry out a particular processing task.

A. Software

B. Hardware

C. Assembler

D. Program

Solution:

550. The instructions and data in a computer system is referred to as

A. Software

B. Hardware

C. Program

D. CPU

Solution:

#### Questions and Answers in Computer Fundamentals

Following is the list of multiple choice questions in this brand new series:

MCQ in Computer Fundamentals
PART 1: MCQ from Number 1 – 50                        Answer key: PART 1
PART 2: MCQ from Number 51 – 100                   Answer key: PART 2
PART 3: MCQ from Number 101 – 150                 Answer key: PART 3
PART 4: MCQ from Number 151 – 200                 Answer key: PART 4
PART 5: MCQ from Number 201 – 250                 Answer key: PART 5
PART 6: MCQ from Number 251 – 300                 Answer key: included
PART 7: MCQ from Number 301 – 350                 Answer key: included
PART 8: MCQ from Number 351 – 400                 Answer key: included
PART 9: MCQ from Number 401 – 450                 Answer key: included
PART 10: MCQ from Number 451 – 500                 Answer key: included

### Complete List of MCQ in Electronics Engineering per topic

PinoyBIX Engineering. © 2014-2020 All Rights Reserved | How to Donate? |  