What is the most common tool used to restrict access to a computer system?
User logins
Passwords
Computer keys
Access-control software
Correct Answer :
B. Passwords
Related Questions
The process of communicating with a file from a terminal is
Interactive
Interrogation
Heuristic
All of the above
Examples of output devices are
Screen
Printer
Speaker
All of these
A small or intelligent device is so called because it contains within it a
Computer
Microcomputer
Programmable
Sensor
The section of the CPU that selects, interprets and sees to the execution of program instructions
Memory
Register unit
Control unit
ALU
The basic operations performed by a computer are
Arithmetic operation
Logical operation
Storage and relative
All the above
When we look at the cost, which of the following computer is most expensive?
Mainframe Computer
Mini Computers
Micro Computers
Super Computers
Storage capacity of magnetic disk depends on
tracks per inch of surface
bits per inch of tracks
disk pack in disk surface
All of above
Most of the first generation computers were
Special purpose computers
General purpose computers
Both of above
None of above
All of the following are examples of real security and privacy risks EXCEPT
hackers
Spam
Viruses
identity theft
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
Which of the following is not a binary number?
1
101
202
110
Servers are computers that provide resources to other computers connected to a:
networked
mainframe
supercomputer
client
A term associated with the comparison of processing speeds of different computer system is:
EFTS
MPG
MIPS
CPS
A Compiler is
a combination of computer hardware
a program which translates from one high-level language to another
a program which translates from one high-level to a machine level language
None of these
The first digital computer built with IC chips was known as
IBM 7090
Apple ? 1
IBM System / 360
VAX-10
From which generation operating systems were developed?
First
Second
Third
Fourth
Which of the following is the first computer to use Stored Program Concept?
UNIVAC
ENIAC
EDSAC
None of above
What is an interpreter?
An interpreter does the conversion line by line as the program is run
An interpreter is the representation of the system being designed
An interpreter is a general purpose language providing very efficient execution
None of the above
Magnetic disks are the most popular medium for
None of above
Both of above
Sequential access
Direct access
A number which is stored and processed but not in the standard exponential form is called
Floating point number
Fixed point number
Octal number
Decimal number
Apple company used chips from for its computers
Intel
Motorola
Both of above
None of above
The term GIGO is relate to which characteristics of computers?
Speed
Automatic
Accuracy
Reliability
RATS stand for
Regression Analysis Time Series
Regression Analysis Time Sharing
Real Analysis Series
All of above
Which of the following is not purely output device?
Screen
Printer
Speaker
Plotter
Through which device the main components of the computer communicate with each other?
Keyboard
System Bus
Monitor
Memory
All modern computer operate on
Information
Floppies
Data
Word
Which is used for manufacturing chips?
Bus
Control unit
Semiconductors
A and b only
ABC is a
Special purpose computer
General purpose computer
All Purpose Computer
None of above
The Third Generation Computer was made with .
Vacuum Tube
Discrete Components
IC
Bio Chips
IBM 7000 digital computer
Belongs to second generation
Uses VLSI
Employs semiconductor memory
Has modular constructions