What is the number of read-write heads in the drive for a 9- trac magnetic tape?
9
16
18
27
Correct Answer :
A. 9
Related Questions
Which part of the computer is directly involved in executing the instructions of the computer program?
The scanner
The main storage
The secondary storage
The processor
Analog computer works on the supply of
Continuous electrical pulses
Electrical pulses but not continuous
Magnetic strength
None of the above
The instructions that tell a computer how to carry out the processing tasks are referred to as computer________
programs
processors
input devices
memory modules
Integrated Circuits (ICs) are related to which generation of computers?
First generation
Second generation
Third generation
Fourth generation
Which one of the following input device is user- programmable?
Dumb terminal
Smart terminal
VDT
Intelligent terminal
Which of the following is valid statement?
Data in itself is useless unless it is processed
The data that is processed is called a program
The data which is not yet processed is information
Information is processed by computer to generate data.
A modern electronic computer is a machine that is meant for
Doing quick mathematical calculations
Input storage, manipulation of outputting of data
Electronic data processing
Performing repetitive tasks accurately
The ALU of a computer responds to the commands coming from
Primary memory
Control section
External memory
Cache memory
What was the first computer to perform all calculation using electronics rather than wheels, ratchets, or mechanical switches?
Mark I
ABC
Z3
None of above
A set of rods where numbers were carved and used for multiplication and division aids is known as
Pascaline
Napier's Bones
Stepped Reckoner
Slide Rule
The ability to recover and read deleted or damaged files from a criminal's computer is an example of a law enforcement speciality called:
robotics
simulation
computer forensics
animation
When did John Napier develop logarithm?
1416
1614
1641
1804
A song being played on computer speaker is
hard output
soft output
both hard and soft output
neither hard nor soft output
The arranging of data in a logical sequence is called
Sorting
Classifying
Reproducing
Summarizing
Reading data is performed in magnetic disk by
Read/write leads
Sectors
Track
Lower surface
ASCII and EBCDIC are the popular character coding systems. What does EBCDIC stand for?
Extended Binary Case Decimal Interchange Code
Extended Bit Case Decimal Interchange Code
Extended Bit Code Decimal Interchange Code
Extended Binary Coded Decimal Interchange Code
Microprocessors as switching devices are for which generation computers
First Generation
Second Generation
Third Generation
Fourth Generation
Any storage device added to a computer beyond the immediately usable main storage is known as
Floppy disk
Hard disk
Backing store
Punched card
WAN stands for
Wap Area Network
Wide Area Network
Wide Array Net
Wireless Area Network
The earliest calculating devices are
Abacus
Clock
Difference Engine
None of these
On a PC, how much memory is available to application software?
1024 KB
760 KB
640 KB
560 KB
What was the main disadvantage of vacuum tubes?
They were larger in size
They consumed a lot of electricity
They produced heat and often burned out
The operation cost was high
Which of the following helps to protect floppy disks from data getting accidentally erased?
Access notch
Write-protect notch
Entry notch
Input notch
Snowbol is an/a________
Operating system
HLL
Software
Search engine
When was Pascaline invented?
1617
1620
1642
1837
Main storage is also called
Accumulator
Control Unit
Register Unit
Memory
Computer professionals working in a computer centre are
Software
Firmware
Hardware
Humanware
The processing speed of first generation computers was
milliseconds
microseconds
nanoseconds
picoseconds
A storage area used to store data to a compensate for the difference in speed at which the different units can handle data is
Memory
Buffer
Accumulator
Address
COBOL is widely used in application s
Commercial
Scientific
Space
Mathematical