CS401 Midterm Past Paper

You have come here while searching for CS401 midterm past papers. But before going to download the CS401 midterm past paper. I have a better option for you. That is, that you can attempt the online quiz of CS401.

Practice Quiz from CS401 Midterm Past Paper

This quiz will evaluate your preparation for the CS401 midterm examination and it is based on the past papers of CS401 . The purpose of this quiz is to evaluate your performance in this subject. If you can pass this quiz, then there is a great chance that you can secure good marks in your exams.

0 votes, 0 avg

Your Time starts now

Times Up

Created on January 17, 2022 By

faisal_faisi

CS401

CS401 Midterm Past Papers Practice Quiz

Welcome to CS401 Midterm Online Practice Quiz.

You can check your preparation of CS401 for your Exams here.

Questions Will be different every time you will attempt.

1 / 30

Category: CS401-mid

The second byte in the word designated for screen location holds

a. Character color on the screen

b. ACSII code of the character

c. Character position on the screen

d. The dimension of the screen

2 / 30

Category: CS401-mid

In instruction ADC the operands can be

a. Two register and one memory location

b. Two register only

c. ZF and two other operands

d. CF and two other operands

3 / 30

Category: CS401-mid

The execution of the instruction “mov word [ES: 0], 0x0741” will print “A” on the screen, color of the character will be

a. Black

b. Blue

c. Red

d. White

4 / 30

Category: CS401-mid

“mov byte [num1],5” is _______ instruction.

a. stack based

b. legal

c. illegal

d. memory indirect

5 / 30

Category: CS401-mid

In the Rotate Right Operation every bit moves one position to right and the bit dropped from the right is inserted at the left and:

a. moves to AL

b. Dropped in CF

c. Don’t go anywhere

6 / 30

Category: CS401-mid

After the execution of SAR instruction

a. No change will occur.

b. MSB Will change

c. MSB remain as it is

d. MSB move to left

7 / 30

Category: CS401-mid

Each screen location corresponds to a word, the lower byte of this word contains ____

a. The dimensions

b. The parameters

c. The attribute byte

d. The character code

8 / 30

Category: CS401-mid

If D is “35” is shift to left 2 bits the new value

a. 17

b. 70

c. 140

d. 35

9 / 30

Category: CS401-mid

ASCII stands for ____________. The screen is two dimensional space having

a. 25 Rows and 25 Columns

b. 80 Rows and 80 Columns

c. 80 Rows and 25 Columns

d. 25 Rows and 80 Columns

10 / 30

Category: CS401-mid

Which of the following options contain the set of instructions to open a window to the video memory?

a. mov AX, 0xb800 mov ES, AX

b. mov AX, 0x800b mov ES, AX

c. mov AX, 0xb008 mov ES, AX

d. mov AX, 0x8b00 mov ES, AX

11 / 30

Category: CS401-mid

One screen location corresponds to a

a. Double word

b. Byte

c. Word

d. Double byte

12 / 30

Category: CS401-mid

After the execution of instruction “RET”

a. SP is incremented by 1

b. SP is decremented by 2

c. SP is decremented by 1

d. SP is incremented by 2

13 / 30

Category: CS401-mid

The clear screen operation initialize whole block of memory

a. 0417

b. 0714

c. 0174, 0720

d. 0741

14 / 30

Category: CS401-mid

A 32 Bit processor has accumulator of ---------

a. 32 bit

b. 64 bit

c. 8 bit

d. 16 bit

15 / 30

Category: CS401-mid

An offset alone is not complete without

a. data label

b. code label

c. index register

d. Segment

16 / 30

Category: CS401-mid

if ax contains decimal -2 and BX contains decimal 2 then after the execution of instructions: CMP AX, BX ,JA label

a. ZF will contain value -4

b. Jump will be taken

c. Jump will not be taken

d. Zero flag will set

17 / 30

Category: CS401-mid

Which bit of the attributes byte represents the red component of background color ?

a. 6

b. 3

c. 4

d. 5

18 / 30

Category: CS401-mid

MOV instruction transfers a byte or word from which of the following source location.

a. DS:SI

b. DS:DI

c. ES:DI

d. ES:SI

19 / 30

Category: CS401-mid

8088 is a 16bit processor with its accumulator and all registers of__________.

a. 32 bits

b. 6 bits

c. 64 bits

d. 16 bits

20 / 30

Category: CS401-mid

Code Segment is associated to _______ register by default.

a. SS

b. CX

c. IP

d. BP

21 / 30

Category: CS401-mid

The memory address always move from

a. processor to memory

b. peripheral to processor

c. memory to peripheral

d. memory to processor

22 / 30

Category: CS401-mid

Only instructions allow moving data from memory to memory

a. word

b. stack

c. string

d. indirect

23 / 30

Category: CS401-mid

The routine that executes in response to an INT instruction is called

a. IRT

b. ISR

c. IRS

d. ISP

24 / 30

Category: CS401-mid

To convert any digit to its ASCII representation

a. Subtract 0x30 from the digit

b. Add 0x30 in the digit

c. Add 0x61 in the digit

d. Subtract 0x61 from the digit

25 / 30

Category: CS401-mid

The iAPX88 processor supports ___________ modes of memory access

a. 8

b. 6

c. 7

d. 5

26 / 30

Category: CS401-mid

The routine that executes in response to an INT instruction is called

a. IRT

b. ISR

c. IRS

d. ISP

27 / 30

Category: CS401-mid

The extended ASCII has

a. 64 characters

b. 128 characters

c. 256 characters

d. 502 characters

28 / 30

Category: CS401-mid

After the execution of SAR instruction

a. The msb is replaced by the value of CF

b. The msb retains its original value

c. The msb is replaced by 1

d. The msb is replaced by a 0

29 / 30

Category: CS401-mid

When two 16bit numbers are added the answer can be 17 bits long, this extra bit that won’t fit in the target register is placed in the where it can be used and tested

a. Auxiliary Carry

b. Parity Flag

c. carry flag

d. Zero Flag

30 / 30

Category: CS401-mid

decrements SP (the stack pointer) by two and then transfers a word from the source operand to the top of stack

a. POP

b. RET

c. PUSH

d. CALL

Your score is

The average score is 84%

Exit

Note before downloading CS401 midterm past paper

One thing to note dear fellows that you must don’t rely on these papers only. They can be a source of help but not an ultimate solution. If you want to get good marks in your exams you are advised to go through all of your handouts and must watch all of the video lectures.

Golden rules for good marks in VU Exams.

As per my experience, I have developed some golden rules for getting good marks in Virtual University Exams based on experience. I got 3.96 CGPA by following these rules. So here they are:

Never miss your Quiz, Assignment, or GDB.
Always try to do your Assignment on your own.
Try your best to finish your video lectures 10 days before exams.
Try your best to read your handouts twice before exams.
Read forward attempt backward.
Never schedule more than one paper on the same day.
Your most difficult paper should have a gap of 1 or more days.
Toughest paper must be scheduled first.
Read questions forward and attempt backward.
Don’t waste your time during a paper on illegal activities.

You can also download the Latest VU Handouts

To download the CS401 midterm past paper click here.

CS401 Midterm Past Paper online Practice Quiz

CS401 Midterm Past Paper

Practice Quiz from CS401 Midterm Past Paper

Note before downloading CS401 midterm past paper

Golden rules for good marks in VU Exams.

Leave a Comment Cancel Reply