Computer Fundamental Miscellaneous - Study Mode
[#591] What is meant by quad-density (QD) diskette?
Correct Answer
(D) All of the above
Explanation
Solution: Quad-density (QD) : A quad density disk is a 5ΒΌ" floppy disk with a storage capacity of 720 kilobytes. Quad density floppy disks are often double sided. During their time, quad density floppy disks are not as common as double-sided, double-density floppy disks.
[#592] Large computer system typically uses:
Correct Answer
(A) Line printers
Explanation
Solution: 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.
[#593] First generation computers are characterised by
Correct Answer
(A) Vacuum tubes and magnetic drum
Explanation
Solution: 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.
[#594] Can you tell what passes into and out from the computer via its ports?
Correct Answer
(B) Bytes
Explanation
Solution: 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.
[#595] What is the general name of the device which produces hardcopy graphics?
Correct Answer
(B) Plotter
Explanation
Solution: 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.