Who used punched cards practically for the first time in the history of computers?
Charles Babbage
Dr. Herman Hollerith
Howard Aikin
Joseph Jacquard
Correct Answer :
B. Dr. Herman Hollerith
Related Questions
What is the main difference between a mainframe and a super computer?
Super computer is much larger than mainframe computers
Super computers are much smaller than mainframe computers
Supercomputers are focused to execute as many programs as possible while mainframe uses its power to execute few programs as fast as possible.
Supercomputers are focused to execute few programs as fast as possible while mainframe uses its power to execute as many programs concurrently
Why are vacuum tubes also called valves?
Because they can amplify the weak signals and make them strong
Because they can stop or allow the flow of current
Both of above
None of above
Light pen and joystick are________
Algorithm
Input devices
Output devices
Portals
A set of information that defines the status of resources allocated to a process is
A) Process control
ALU
Register Unit
Process description
Process control
Algorithm and Flow chart help us to
Know the memory capacity
Identify the base of a number system
Direct the output to a printer
Specify the problem completely and clearly
The time required for the fetching and execution of one simple machine instruction is
Delay time
CPU cycle
Real time
Seek time
Which of the following are the two main components of the CPU?
Control Unit and Registers
Registers and Main Memory
Control unit and ALU
ALU and bus
The original ASCII code used__bits of each byte, reserving that last bit for error checking
5
6
7
8
Web cam is an
input unit device
output unit device
processing device
Input and Output device
Regarding data, computers are very good at
store
Processing
retrieve
All of above
Who used punched cards practically for the first time in the history of computers?
Charles Babbage
Dr. Herman Hollerith
Howard Aikin
Joseph Jacquard
Which of the following is not processing?
arranging
manipulating
calculating
gathering
CAD stands for
Computer aided design
Computer algorithm for design
Computer application in design
All of the above
The word processing task associated with changing the appearance of a document is
Editing
Writing
Formatting
All of above
A 32 bit microprocessor has the word length equal to
2 byte
32 byte
4 byte
8 byte
Which of the following terms is the most closely related to main memory?
Non volatile
Permanent
Control unit
Temporary
What is a compiler?
A compiler does a conversion line by line as the program is run
A compiler converts the whole of a higher level program code into machine code in one step
A compiler is a general purpose language providing very efficient execution
None of the above
Which of the following storage devices can store maximum amount of data?
Floppy Disk
Hard Disk
Compact Disk
Magneto Optic Disk
Which of the following storage device can store the largest amount of data?
Hard Disks
Flash Disks
Blu-Ray Disks
DVDs
Which of the following devices can be sued to directly image printed text?
OCR
OMR
MICR
All of above
MSI stands for
Medium Scale Integrated Circuits
Medium System Integrated Circuits
Medium Scale Intelligent Circuit
Medium System Intelligent Circuit
________ computer is a medium sized computer
Micro
Mainframe
Super
Mini
The first machine to successfully perform a long series of arithmetic and logical operations was:
ENIAC
Mark-I
Analytic Engine
UNIVAC-1
What is a light pen?
Mechanical Input device
Optical input device
Electronic input device
Optical output device
After copying the content how many times can you paste?
1
16
32
Many
ASCII stands for
American Stable Code for International Interchange
American Standard Case for Institutional Interchange
American Standard Code for Information Interchange
American Standard Code for Interchange Information
Registers which are partially visible to users and used to hold conditional codes (bits set by the CPU hardware as the result of operations), are known as
PC
Flags
Memory Address Registers
General Purpose Registers
Most of the inexpensive personal computers do not have any disk or diskette drive. What is the name of such computes?
Home computers
Diskless computers
Dedicated computers
General purpose computers
A set of flip flops integrated together is called
Counter
Adder
Register
None of the above
EPROM can be used for
Erasing the contents of ROM
Reconstructing the contents of ROM
Erasing and reconstructing the contents of ROM
Duplicating ROM