Which of the following memories must be refreshed many times per second?
Static RAM
Dynamic RAM
EPROM
ROM
Correct Answer :
B. Dynamic RAM
Related Questions
What does DMA stand for?
Distinct Memory Access
Direct Memory Access
Direct Module Access
Direct Memory Allocation
The output quality of a printer is measured by
Dots per inch
Dot per sq. inch
Dots printed per unit time
All of above
________ refers to electronic trespassing or criminal hacking.
Cracking
Jacking
Spoofing
Smarming
An operating system intended for use on microprocessor based systems that support a single user is
PC-DOS
MS-DOS
UNIX
CP/M
Which of the following programming language were used in first generation computers?
Machine language
Assembly language
Both of above
None of above
Which of the following produces the best quality graphics reproduction?
Laser printer
Ink jet printer
Plotter
Dot matrix printer
Computers process data into information by working exclusively with :
multimedia
word
numbers
characters
Storage capacity of magnetic disk depends on
tracks per inch of surface
bits per inch of tracks
All of above
disk pack in disk surface
Which language was devised by Dr. Seymour Cray?
APL
COBOL
LOGO
FORTRAN
A path by which communication is achieved between a central processor and other devices is called
Audit trail
Network
Bus
Channel
A computer has very low failure rate because it uses electronic components. It produces very consistent results. This is highlighted by which of the feature of computer?
Accuracy
Reliability
Versatility
Automatic
Magnetic disk is an example of
Secondary memory
Primary memory
Main memory
Both (1) and (2)
In which language is source program written?
English
Symbolic
High level
Temporary
DOS stands for
Disk Operating System
Disk operating session
Digital Operating System
Digital Open system
Personnel who design, program, operates and maintains computer equipment refers to
Console-operator
Programmer
Peopleware
System Analyst
Compilers and interpreters are themselves
High-level language
Codes
Programs
Mnemonics
The programs which are as permanent as hardware and stored in ROM is known as
Hardware
Software
Firmware
ROM ware
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 memory medium is not used as main memory system?
Magnetic core
Semiconductor
Magnetic tape
Both semiconductor and magnetic tape
Chief component of first generation computer was
Transistors
Vacuum Tubes and Valves
Integrated Circuits
None of above
Which of the printers used in conjunction with computers uses dry ink powder?
Daisy wheel printer
Line printer
Laser printer
Thermal printer
Which of the following is used as a primary storage device?
Magnetic drum
Hard Disks
All of above
Floppy
Which of the following is not a micro computer?
Laptop PCs
Tablet PCs
Desktop PCs
None of above
When a logic bomb is activated by a time-related event, it is known as a:
Time-related bomb sequence.
Virus.
Time bom
Trojan horse.
CD-ROM stands for
Compactable Read Only Memory
Compact Data Read Only Memory
Compactable Disk Read Only Memory
Compact Disk Read Only Memory
A name or number used to identify a storage location is called
A byte
A record
An address
All of above
Who invented vacuum tubes?
John Bardeen
William Shockley
Lee de Forest
All of above
Which of the following is a programming language?
Lotus
Pascal
MS-Excel
Netscape
Which computers are used as servers for any medium sized organizations?
Mainframe Computer
Mini Computers
Micro Computers
Super Computers
Which of the following is not a feature of first generation computers
They used vacuum tubes or valves as main electronic component
They consumed lots of electricity and produced excessive heat
They used machine language and assembly language to program the machine
None of above