Computer Basic Questions

     1.    The BUS busy line is used

                     To indiacate the BUS is already allocated

2.

This set of Computer Organisation and Architecture MCQ focuses on “Direct Memory Access”.
 Both the involvement of the processor for the operation and the amount of data transfer possible

3.

_______is Volatile Memory
  RAM

4.

When CPU is executing a Program that is part of the Operating System, it is said to be in _____.
 System mode 

5.

In DMA transfers, the required signals and addresses are given by the
 DMA controllers 

6.

Cache memory acts between_______.
CPU and RAM 

7.

Paint brush is text editor
False 

8.

DML is provided for
 Manipulation & processing of database.

9.

A group of bits that tell the computer to perform a specific operation is known as____.
Instruction code 

10.

An entity set that does not have sufficient attributes to form a primary key is a
weak entity set 

11.

The Programs which are as permanent as hardware and stored in ROM is known as:
Firmware

12.

What is the following program doing? main () { int d = 1; do printf(“%d\n”, d++); while (d < = 9);}
Displaying integers from 1 to 9

13.

If a system is 64 bit machine , then the length of each word will be ____ .
8 bytes 

14.

An assembler is
machine dependant. 

15.

The language used in application programs to request data from the DBMS is referred to as the
DML

16.

Software required to run the hardware is known as
Device Driver 

17.

The complexity of multiplying two matrices of order m*n and n*p is
mnp

18.

The main memory in a Personal Computer (PC) is made of_____.
both cache memory and static RAM

19.

Keyboard Converts typed in character to ___code
ASCII 

20.

In a vectored interrupt.
the interrupting source supplies the branch information to the processor through an interrupt vector. 

21.

The BUS busy line is made of ________
Open-collector circuit 

22.

Can a single DMA controller perform operations on two different disks simulteneously…??
True 

23.

To get the physical address from the logical address generated by CPU we use ____ .
MMU

24.

Cartesian product in relational algebra is
a Binary operator.

25.

The circuit used to store one bit of data is known as ______.
Flip Flop 

26.

The list of coded instructions is called
Computer Program

28.

Hardware can work without device driver
False

29.

In Centralised Arbitration ______ is/are is the BUS master
Both Processor and DMA controller 

30.

The database schema is written in
DDL 

31.

In an E-R diagram attributes are represented by
ellipse

32.

Shell is the exclusive feature of
UNIX 

33.

Load address for the first word of the program is called
load address origin

34.

Which of the following can be used as a criterion for classification of data structures used in language processing.
All of these 

36.

Which of the following is invalid type of memory
PRAM (Programmable Read Access Only Memory ) 

37.

The smallest entity of memory is called as _______ .
Cell 

38.

Which device is used as the standard pointing device in a Graphical User Environment
Mouse 

39.

Which of the following does data requirements allow for data ?
All of the mentioned 

40.

A linear list of elements in which deletion can be done from one end (front) and insertion can take place only at the other end (rear) is known as a
queue

41.

The controller is connected to the ____
System BUS

42.

Which of the following computer generation uses concept of artificial intelligence?
Forth Generation 

43.

The average time required to reach a storage location in memory and obtain its contents is called_____.
Access time. 

44.

__________Unit control the operation of CPU
Control Unit

45.

When process requests for a DMA transfer ,
Both then the process is temporarily suspended and another process gets executed 

46.

Which of the following is not output device?
Scanner

47.

In a Hierarchical model records are organized as
Tree. 

48.

Translation from symbolic program into Binary is done in____

                     Two passes.

49.

If a, b and c are integer variables with the values a=8, b=3 and c=-5. Then what is the value of the arithmetic expression: 2 * b + 3 * (a-c)
45 

50.

Trackball is output device
False