4.6 Hardware and Software

Question 1

1. High-level languages​
2. Machine codes​
3. Assembly languages​
4. Binary codes​

What is the correct arrangement of programming languages in the order of understandability by humans?​

Answer 1

1, 3, 2, 4

Question 2

Machine codes are written in what form?

Answer 2

Binary or hexadecimal

Question 3

Which type of programming language uses codes such as ADD, MOV and DEL?​

Answer 3

Assembly language

Question 4

Consider the instruction: ADD AX, 08h. What represents the opcode?

Answer 4

ADD

Question 5

Which of the following is NOT a register?
Accumulator​

Program counter​

MAR​

Mnemonic​

Answer 5

Mnemonic

Question 6

Which of the following register performs the calculations and stores the result?​

Answer 6

Accumulator

Question 7

In which of the following instruction operands are not specified?

Answer 7

INP

Question 8

Where is the input from the user stored first when the instruction INP is used?

Answer 8

Accumulator

Question 9

What is the function of instruction DAT?

Answer 9

Labels a memory location.

Question 10

What instruction is used to stop the execution of a program?

Answer 10

HLT

Question 11

Which of the following refers to a branch instruction?

Answer 11

BRP

Question 12

After execution of this instruction: MOV A, 05H; the ACC contains value 05H. What type of addressing is followed in this instruction?

Answer 12

Immediate addressing

Question 13

What are the 3 types of translators

Answer 13

Assemblers
Compilers
Interpreters

Question 14

what is a translator

Answer 14

A utility program that translates the program written by programmers and codes in an assembly language into binary form.

Question 15

what does an interpreter do

Answer 15

A computer program that reads a statement from a program written in high-level language, performs the action specified by the statement and then proceeds to the next statement and so on.

Question 16

What is an interpreter used mainly for

Answer 16

error checking

Question 17

what does a compiler do

Answer 17

A computer program that translates a program written in high-level language into machine code all at once and then executes it

Question 18

what is a compiler mainly used for

Answer 18

putting a finished product onto systems

Question 19

what does an assembler do

Answer 19

A computer program that translates a program written in an assembly language into machine code.

Question 20

what is assembly language

Answer 20

A type of low-level programming language that uses instructions specific to hardware.

Question 21

what is assembly language

Answer 21

A type of low-level programming language that uses instructions specific to hardware.

Question 22

advantages of compilers

Answer 22

Object code executes faster

Executable code can be saved and doesn’t need to be compiled.

Compiled code is difficult to work with and harder to copy.

Question 23

disadvantages of compilers

Answer 23

Error doesn’t get flagged until the end of the process. If an error is discovered, the entire program may need to be recompiled.

Risk compiler might not generate all the required machine language, causing bugs.

Executable code produced is specific to the machine.