Computer Online Test

Any vector in an arbitrary direction can always be replaced by two (or three) ____.
Parallel vectors which have the original vector as their resultant
Mutually perpendicular vectors which have the original vector as their resultant
Arbitrary vectors which have the original vector as their resultant
It is not possible to resolve a vector
Which of the following is a vector?
Pressure
Surface tension
Moment of inertia
None of the above
Which of the following is a scalar quantity?
Displacement
Electric field
Acceleration
Work
How many different signals can be transmitted by arranging three red, two yellow and two green flags on a pole? (Assume that all the seven flags are used to transmit the signal)
140
210
280
70
7
Why the pointer is used in function?
Function has a property that it returns only one value. But in several circumstances, function has to return more than on value that is possible only through pointers.
Function has a property that it returns only one value. But in several circumstances, function has to return more than on value that is not possible through pointers.
Function can more than one value with out pointers.
None of the above
Which type of memory is for information that DOES NOT CHANGE on your computer?
RAM
ROM
ERAM
RW/RAM
None of the above.
Extended memory is any RAM beyond...MB (640 KB usable by application programs) of system memory.
2
6
3
1
5
What type of memory is not directly addressable by the CPU and requires special software called EMS (expanded memory specification)?
Extended
Expanded
Base
Conventional
Basic system.
The computer translates the condition of each switch to a number. What number is represented by the ON state?
+7
+3.75
1
0
22.
The computer translates the condition of each switch to a number. What number is represented by the OFF state?
-7
-3.75
1
0
-22.
Before a disk can be used to store data, it must be...
formatted
labeled
reformated
addressed
None of the above.
What type of device is a computer keyboard?
Memory
Output
Storage
Input
None of the above.
The term was originally coined to refer to any computer that sat on a desktop and was smaller that a minicomputer, which, in turn, was smaller than a mainframe computer.
MM computer
microcomputer
minicomputer
mainframe computer
None of the above.
Ali the instructions and procedures needed to start up a computer, to the point it can load an operating system, are stored in ROM chips. In IBM compatible PCs this is called the…..
RAM BIOS
ROM BIOS
EPROM
POST
None of the above.
Hard disks are formatted in the same manner as floppy disks. However, before a hard disk can be formatted, it must first be………
partitioned
sectioned
deleted
inter-sectioned
write protected
Storage on PC allows you to store files until something erases it, but memory loses its contents whenever its…… lost.
Static
Disk space
Power
Both (a) and (b) above
None of the above.
On a PC, how much memory is available to application software?
1024KB
760KB
640KB
560KB
2048 KB.
The computer industry uses prefixes of Greek origin to measure large amounts of data. Which term describes 1024 bytes?
Kilobyte
Megabyte
Gigabyte
Terabyte
None of the above.
Which type of RAM works like a series of small switches? (Once a switch is set to ON, it stays on until the computer changes it).
Dynamic
Static
Video
RW
None of the above.
Which of the following processors use RISC technology?
486DX4
PowerPC
486SX
68040
None of the above.
Which type device is apiece of equipment that receives information from a CPU?
Input
Output
CPU
Memory
None of the above.
The 0 and 1 in the binary numbering system are called binary digits or........
bytes
kilobytes
decimal bytes
bits
nibbles.
Which of the following functional components of a computer is responsible for the transient or temporary storage used by the CPU?
Input
Output
CPU
Memory
Storage.
What does that acronym EGA stand for?
Enhanced Graphics Array
Extended Graphics Array
Monochrome Graphics Adapter
Enhanced Graphics Adapter
Extended Graphics Adapter.
Which company produces processors for the Apple Macintosh?
IBM
Motorola
Intel
AMD
Cyrix.
A computer, by definition, is any device that computers. This broad definition includes which of the following?
Calculators
Cash registers
Automotive controllers
Desktop computers
All of the above.
Click on the graphic and determine what type of bus connector is identified?
8-bit ISA
16-bitsISA
MCA
EISA
None of the above.
An………device is any device that provides information which is sent to the CPU.
Input
Output
CPU
Memory
Storage.
What digits are representative of all binary numbers?
0
1
Both a and b
3
None of the above.
Which of the following terms describe 1024 kilobytes?
Kilobyte
Megabyte
Gigabyte
Terabyte
None of the above.
The………. provides a path between the CPU and peripheral devices, which are connected via interface cards.
Computer
Expansion
Memory
CPU
None of the above.
Which functional component of a computer is responsible for the computing?
Input
Output
CPU
Memory
None of the above.
What is the standard code the computer industry created to represent characters?
DASI
ASSII
ASCII
BASCII
EPROM
A monitor's………..is the distance between the holes in the mask behind the screen. This helps determine how sharp the dots appear.
Refresh rate
Dot pitch
Resolution
Color depth
None of the above.
Whereas a computer moue movers over the table surface, the trackball is:
Stationary
Difficult to move
Dragged
Moved in small steps
None of the above
Which one of the following input device is user programmable?
Dumb terminal
Smart terminal
VDT
Intelligent terminal
None of the above
Which one of the following is termed a combination input-output device?
VDT
Keyboard
Printer
Laser jet
None of the above
Point put the odd item amongst the following:
Computer mouse
Touchpad
Light pen
printer
None of the above
The barcode which is used on all types of items is read by a scanning device directly into the computer. What is the name of this scanning device?
Laser scanner
Wand
OCR
MICR
None of the above
If in a computer 16 bits are used to specify addresses in a RAM, the number of addresses will be:
216
65,536
64K
Any of the above
None of the above
How many bits can be stored in the 8 K RMA?
8000
8192
4000
4096
None of the above
A computer has a 1024K memory. What does the letter K stand for:
Kilometer
Thousand
1024
MB
None of the above
The storage locations in the internal storage of a CPU are called:
Contents
Address
Locations
Mask
None of the above
Which of the following chips can be reprogrammed with special electric pulses?
EPROM
PROM
ROM
EEPROM
None of the above
Which type of memory chips are likely to be used in the primary storage of the future general of computers?
Silicon chips
Optical chips
Biochips
Gallium arsenide (GaAs) chips
None of the above
In modern computers, bipolar semiconductor chips are often used in the arithmetic-logic unit, can you tell what material is used for the slower and less expensive primary storage sections?
Gallium arsenide (GaAs)
Metal oxide semiconductor (MOS)
Silicon
Germanium
None of the above
Which of the following is used for serial access storage only?
Ram
Magnetic tape
Magnetic disk
Core memory
None of the above
Which of the following is not an alternative name primary memory?
Main memory
Primary storage
Internal storage
Mass storage
None of the above
Which computer company inverted the RAM chip?
Motorola
Intel
Toshiba
IBM
None of the above
What are the alternative names for the internal storage of a computer?
Real storage
Primary memory
Main memory
Both (a) and (b)
None of the above
Which term is not used to describe the memory component of a computer?
ROM
PROM
RAM
SAM
None of the above
What is meant by the term RAM?
Memory which can only be read
Memory which can be both read and written to
Memory which is used for permanent storage
Memory which can only be written to
None of the above
A memory device in which a location is identified by its contents rather than by name is known as:
buffer
magnetic tape
associative storage
punched card
None of the above.
The software that performs the specific jobs to be done in a business is called:
system software
application software
utilities
application program
None of the above.
The location where input/output devices are connected to the computer is known as:
keyboard
accumulator
bus
port
None of the above.
Programs designed to perform specific tasks is called known as:
system software
application software
utility programs
operating system
None of the above.
Off-line operation is the operation of devices without the control of:
memory
CPU
ALU
control unit
None of the above.
Computer professionals working in a computer centre are:
software
firmware
hardware
Human ware
None of the above.
Which is a fast main memory & slow peripheral memory handled by system software.
Core memory
Virtual memory
RAM
Dynamic memory
None of the above.
A computer with CPU speed around 100 million instructions per second & with the word length of around 64 bits is known as:
super computer
mini computer
micro computer
micro computer
None of the above.
Pictures or drawings, typically displayed on a VDU to allow users to select program options is called:
HIPO charts
icons
graphics
network
None of the above.
Communications processor that receives messages & forwards them to appropriate locations is:
micro-to-mainframe linkage
message switch
microprocessor
compiler
None of the above.
An approach that permits the computer to work on several programs instead of one is:
on-line thesaurus
multiprogramming
overlapped processing
outline processor
None of the above.
The language that is an input for statement translation is called:
assembly language
source language
high-Level language
object language
None of the above.
Which processing occurs right after input data are entered into a computer system & the output results are quickly produced.
Data
Sequential
File
Interactive
None of the above.
Which of the following is a displayed listing of program option that users can select?
Menu
Block
Data item
File
None of the above.
A prewritten program that's sold to perform a common task is called an application:
system software
package
utilities
program
None of the above.
Which function of a computer is responsible for permanent storage of data?
Input
Output
CPU
Memory
None of the above.
Bits are used together is groups of....to form a byte.
16
8
10
4
2
Which of the following interfaces offer the following options: maximum disk sizes of up to 528 MB maximum (theoretical) data transfer rate of 4 MB per second support for up to 2 hard disk drives
ST506/412
IDE
ESDI
SCDI
None of the above.
On a CD-ROM, bits of data are represented by either a which does not reflect, or a……. which does reflect. These are the binary 1's and O's.
Pit-land
Land-pit
Dip-bump
Bump-dip
None of the above.
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