Computer fundamental MCQ Questions and answers- Technical Aptitude

Line printers : A line printer prints one entire line of text before advancing to another line. Most early line printers were impact printers. Line printers are mostly associated with unit record equipment and the early days of digital computing, but the technology is still in use.

A vacuum tube computer, now termed a first-generation computer, is a computer which uses magnetic drum memory was invented in 1932 by Gustav Tauschek in Austria.

The correct answer is A: Data.
Let's break it down:
Ports are like doorways or connectors on your computer.
They allow information to enter and exit the computer.
This information is generally referred to as data.
Think of data as a broad term for any kind of information, whether it's numbers, text, instructions, or signals.
While bytes, graphics, and pictures *are* types of data, the most general and accurate term is data itself.
Bytes are a unit of data.
Graphics and Pictures are specific types of visual data.
Therefore, data is the overall category that encompasses everything passing through the computer's ports.

Plotter : The plotter is a computer printer for printing vector graphics. In the past, plotters were used in applications such as computer-aided design, though they have generally been replaced with wide-format conventional printers. A plotter gives a hard copy of the output. It draws pictures on a paper using a pen.

A disk stack is serviced by a comb-like access mechanism, there is one read/write head for each the disk surface. The disk surface is logically divided into tracks, which are subdivided into sectors. A sector (varying from 32 bytes to 4096 bytes, usually 512 bytes) is the smallest unit of information that can be read from or written to disk.

In 1980 year was UK's premier computing event called "The Which Computer" started. A computer is a programmable device that stores, retrieves, and processes data. The term "computer" was originally given to humans (human computers) who performed numerical calculations using mechanical calculators, such as the abacus and slide rule.

In comparison to the internal (main) memory, tape or disk memory is slower and less expensive. RAM is less expensive and slower. Slower and less expensive.

Punched cards : A punched card or punch card is a piece of stiff paper that can be used to contain digital data represented by the presence or absence of holes in predefined positions. Digital data can be used for data processing applications or, in earlier examples, used to directly control automated machinery.

Source : wikipedia.org

The ALU of a computer responds to the commands coming from the Control Section. Control section commands are responded by the Arithmetic and Logical Unit of the computer.

The heart of any computer is the CPU. The CPU, or rather microprocessor, is the heart of any computer system. The microprocessor calculates, performs logical operations and manages data flows by reading instructions from memory and then executing them.