While displaying something on screen, why is ES loaded with the segment of video memory?

• A) To manipulate ASCII codes
• B) To open a window to the video memory
• C) To control cursor position
• D) To access data

What is the significance of the memory location B8000 in the context of Display Memory?

• A) BIOS vendor's problem location
• B) Physical memory location for video controller's memory
• C) Segment register for accessing video memory
• D) Default cursor position

Which of following interrupt is used for BIOS Video Services

• A) 0x21
• B) 0x13
• C) 0x16
• D) 0x10

How is the video device perceived by the computer in terms of memory?

• A) Only accessible through I/O ports
• B) Independent of system memory
• C) Linearly mapped memory
• D) Two-dimensional space with ASCII codes

Service numbers are given in ________ register while sub services in ________

• A) AX, Al or Ah
• B) Al, Ah or ax
• C) Ax, Bx
• D) AH, AL or BL

What is the purpose of sending 0x40 to the VGA card in the context of display memory formation?

• A) Change cursor position
• B) Clear the screen
• C) Set resolution
• D) Turn pixels on and off

What is the purpose of the MUL instruction in the context of display memory?

• A) Controls cursor attributes
• B) Clears the screen
• C) Multiplies ASCII codes
• D) Performs unsigned multiplication

REP with _____will utilizes the full processor power to do the scrolling in minimum time

• A) REPNE
• B) SCAS
• C) LES
• D) MOVS

In string instructions, the mode is called auto-decrement mode when:

• A) DF is set
• B) ZF is cleared
• C) DF is cleared
• D) CX is set

MOVS instruction is used to ____________

• A) Move register to a memory location
• B) Move a memory location to register
• C) Move memory to memory
• D) Move register to register

Which of the following is base address for displaying any character in the Screen?

• A) 0b800x
• B) 0xb800
• C) 0b800
• D) 0xb80

Near Calls are also called __________.

• A) Small call
• B) Close call
• C) intra segment
• D) inter segment

MOV AX, 0XB800 MOV ES, AX ; This instruction points ES to_______.

• A) graphics base
• B) audio base
• C) numeric base
• D) video base

The execution of the instruction "mov word [ES : 160], 0x1230" will print a character on the screen at:

• A) First column of third row
• B) Second column of second row
• C) First column of second row
• D) Second column of first row

Far calls are also called ______________ calls.

• A) obscure
• B) inter segment
• C) intra segment
• D) distant

VGA stands for

• A) Video Graphics Application
• B) Visual Graphics Adapter
• C) Video Graphic Accumulator
• D) Video Graphics Adapter

Shift Arithmetic Left (SAL) can also be called as

• A) Shift Logical Left
• B) Rotate right
• C) Rotate Left
• D) Shift Logical Right

The last location of word, corresponding to the screen will be ______

• A) 4000
• B) 1998
• C) 2000
• D) 3998

When all the general registers are used then a subroutine can receive maximum _____ parameters.

• A) 6
• B) 7
• C) 5
• D) 4

0x represents

• A) Decimal Numbers
• B) 0 Based Numbers
• C) Hexadecimal Numbers
• D) Binary Number