Computer & IT

note!Answer: D) All of the above
Each of these devices produces printed (hard copy) output.

note!Answer: B) Digital plotter
Digital plotters draw precise vector drawings and are standard for CAD output.

note!Answer: A) George Boole
George Boole developed Boolean (symbolic) logic in the 19th century.

note!Answer: C) MANIAC
MANIAC was used at Los Alamos in 1952 for hydrogen bomb calculations.

note!Answer: C) Dumb terminals
Dumb terminals share one central processor, so no separate processing unit is needed for each user.

note!Answer: D) All of the above
The ALU compares values using greater than, less than, and equal to operations.

note!Answer: C) ALU
The Arithmetic Logic Unit (ALU) performs arithmetic calculations and logical comparisons.

note!Answer: C) Mainframe computers
EBCDIC is an 8-bit character code used mainly on IBM mainframe computers.

note!Answer: A) 10^-3 seconds
A millisecond is one thousandth of a second, i.e., 10^-3 seconds.

note!Answer: A) Repeater
A repeater works at the Physical layer (layer 1) by regenerating signals.

note!Answer: A) Disk
Disks are circular storage plates that store data magnetically or optically.

note!Answer: C) Information
Data that has been organized and processed becomes information.

note!Answer: A) Petal printer
Daisy wheel printers are also called petal printers because of their petal-shaped type wheel.

note!Answer: D) Cluster
A cluster is a group of devices controlled by one master unit.

note!Answer: B) Super computer
Supercomputers are informally called number crunchers because of their huge numerical processing power.

note!Answer: C) Intel 4004
The Intel 4004 (1971) is widely recognised as the first commercially available microprocessor.

note!Answer: C) High level
A source program is written in a high-level language, which is later translated into machine code.

note!Answer: D) Semiconductor
Chips are manufactured from semiconductor materials such as silicon.

note!Answer: B) application software
Application software is designed to perform specific user tasks such as word processing or accounting.

note!Answer: C) punched papers tape
Punched paper tape stores data as holes in paper and was used for both input and output.