Which of the following memories needs refresh?
SRAM
DRAM
ROM
All of above
Correct Answer :
B. DRAM
Related Questions
What is the date when Babbage conceived Analytical engine
1642
1837
1880
1850
MSI is the abbreviation of
Medium Scale Integrated
Medium System Integrated
Medium Scale Intelligent
Medium System Intelligent
Large transaction processing systems in automated organisations use
Online processing
Batch Processing
Once-a-day Processing
End-of-day processing
What is the first stage in software development?
Specification and design
Testing
System Analysis
Maintenance
EEPROM stands for
Electrically Erasable Programmable Read Only Memory
Electronic Erasable Programmable Read Only Memory
Easily Erasable Programmable Read Only Memory
Easily Erasable Programmable Read Only Memory
Web cam is an
input unit device
output unit device
processing device
Input and Output device
Why is it unethical to share copyrighted files with your friends?
It is not unethical, because it is legal.
It is unethical because the files are being given for free.
Sharing copyrighted files without permission breaks copyright laws.
It is not unethical because the files are being given for free.
The first Macintosh computer was from
First generation
Second generation
Third generation
Fourth generation
UNIVAC is
Universal Automatic Computer
Universal Array Computer
Unique Automatic Computer
Unvalued Automatic Computer
When was Pascaline invented?
1617
1620
1642
1837
In _____ mode, the communication channel is used in both directions at the same time?
Full-duplex
Simplex
Half-duplex
None of the above
Is an OOP principle
Structured programming
Procedural programming
Inheritance
Linking
An intentionally disruptive program that spreads from program to program or from disk to disk is known as a:
Trojan horse.
Virus.
Time bomb.
Time-related bomb sequence.
in which year was UKs premier computing event called ?The which computer? started?
1980
1985
1986
1987
Easily reloctable language is
Machine language
Assembly language
High level language
Medium level language
Which statement is valid about magnetic tape?
It is a plastic ribbon
It is coated on both sides with iron oxide
It can be erased and reused
All of above
When a key is pressed on the keyboard, which standard is used for converting the keystroke into the corresponding bits?
ANSI
ASCII
EBCDIC
ISO
All modern computer operate on
Information
Floppies
Data
Word
What is the most common tool used to restrict access to a computer system?
User logins
Passwords
Computer keys
Access-control software
In the IBM PC-At, what do the words AT stand for
Additional Terminals
Advance technology
Applied technology
Advanced terminology
What is the responsibility of the logical unit in the CPU of a computer?
To produce result
To compare numbers
To control flow of information
To do math's works
Programs designed to perform specific tasks is known as
system software
application software
utility programs
operating system
A typical personal computer used for business purposes would have of RAM.
4 KB
16 K
64 K
256 K
Primary memory stores
Data alone
Programs alone
Results alone
All of these
A dumb terminal has
an embedded microprocessor
extensive memory
independent processing capability
a keyboard and screen
What type of control pins are needed in a microprocessor to regulate traffic on the bus, in order to prevent two devices from trying to use it at the same time?
Bus control
Interrupts
Bus arbitration
Status
Computers with 80286 microprocessor is
XT computer
AT computers
PS/2 computer
None of above
Which of the following registers is used to keep track of address of the memory location where the next instruction is located?
Memory address registers
Memory data register
Instruction register
Program counter
A number system that has eight different symbols to represent any quantity is known as
Binary
Octal
Decimal
Hexadecimal
The storage subsystem in a microcomputer consists mainly of or media with varying capacities
Memory or video
Magnetic or optical
Optical or memory
Video or magnetic