When did IBM introduce the 20286 based PC/AT?
1982
1984
1985
1989
Correct Answer :
B. 1984
Related Questions
Which of the following statement is false?
Mechanical analog computers have existed for thousands of years
There are mechanical analog computers and electronic analog computers.
All electronic computers are digital computers
All of above are false
The 2's compliment of a binary no. is obtained by adding________to its 1's compliment.
0
1
10
12
Which of the printers used in conjunction with computers uses dry ink powder?
Daisy wheel printer
Line printer
Laser printer
Thermal printer
Which device is required for the Internet connection?
Joystick
Modem
CD Drive
NIC Card
Magnetic tape can serve as
Secondary storage media
Output media
Input media
All of the above
Which of the following is not an XT microprocessor?
8006
8086
8088
None of above
The technology that stores only the essential instructions on a microprocessor chip and thus enhances its speed is referred to as
CISC
RISC
CD-ROM
Wi-Fi
What is meant by a dedicated computer?
Which is used by one person only?
Which is assigned one and only one task?
Which uses one kind of software?
Which is meant for application software?
The first computer introduced in Nepal was
IBM 1400
IBM 1401
IBM 1402
IBM1402
What is the path from which data flow in a computer system is known as
Car
Bus
Truck
Road
It was in 2028 BS the was brought in to calculate census datA.
IBM 1400
IBM 1401
ICL 2950
None of above
Which of the following have low failure rate?
Mechanical devices
electronic devices
electro-mechanical devices
None of above
Symbolic logic was discovered by
George Boole
Herman Hollerith
Van Neumann
Basic Pascal
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 statement is valid?
Lady Augusta is the first programmer
Ada is the daughter of Lord Byron, a famous English poet
ADA is a programming language developed by US Defense
All of above
In which language is source program written?
English
Symbolic
High level
Temporary
Which of the following is not input unit device?
scanner
camera
plotter
digitizer
A technique used by codes to convert an analog signal into a digital bit stream is known as
Pulse code modulation
Pulse stretcher
Query processing
Queue management
Which of the following is not a valid size of a Floppy Disk?
8?
5 ¼?
3 ½?
5 ½?
Which computer memory is used for storing programs and data currently being processed by the CPU?
Mass memory
Internal memory
Non-volatile memory
PROM
If in a computer, 16 bits are used to specify address in a RAM, the number of addresses will be
216
65,536
64K
Any of the above
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 is not input unit device?
scanner
camera
plotter
digitizer
A DVD is an example of a (n)-
hard disk
optical disc
output device
solid-state storage device
IBM 1401 is
First Generation Computer
Second Generation Computer
Third Generation Computer
Fourth Generation Computer
Microprocessors as switching devices are for which generation computers?
First Generation
Second Generation
Third Generation
Fourth Generation
First generation computers used_____ for memory
vacuum tubes
silicon chips
magnetic drum
RAM
One of the main feature that distinguish microprocessors from micro-computer is
Words are usually large in microprocessors
Words are shorter in microprocessors
Microprocessor does not contain I/O device
Exactly the same as the machine cycle time
An error in software or hardware is called a bug. What is the alternative computer jargon for it?
Leech
Squid
Slug
Glitch
Which of the following storage devices can store maximum amount of data?
Floppy Disk
Hard Disk
Compact Disk
Magneto Optic Disk