Page 95 - IPP-11

Case-based/Source-based

Integrated Questions

CHAPTER: COMPUTER SYSTEM
1. Xenox Technologies deals with supply of hardware components required for the assembly of computer
systems in Nehru Place market. They provide reliable and efficient data storage devices to their customers.
Six storage devices in which they deal are described below. Name the storage device being described and
also list the appropriate category of storage.
(a) Optical media which use one spiral track; red lasers are used to read and write data on the media surface;
makes use of dual-layering technology to increase storage capacity.
(b) Non-volatile memory chip; contents of the chip cannot be altered; it is often used to store the
start-up routines in a computer (e.g., BIOS).
(c) Optical media which use concentric tracks to store data; this allows read and write operations to be
carried out at the same time.
(d) Non-volatile memory device which uses flash memory (which consists of millions of transistors
wired in a series on a single circuit board).
(e) Optical media which use blue laser technology to read and write data on the media surface.
(f) Magnetic disc with very large storage capacity; can be used to store vast amounts of data; mostly fixed
in computer cases and serves as the main storage device.
Ans. (a) DVD Offline Storage
(b) ROM Primary Memory
(c) DVD-ROM Offline Storage
(d) Solid State Memory/Memory Card Offline Storage
(e) Blu-ray Disc Offline Storage
(f) Hard Disk Secondary Memory
2. World Class Telecom Company is planning to conduct a videoconference with its associated partners across
several nations. In its videoconferencing area, there are several microphones, speakers and webcams.
Describe the purpose of each of the devices.
Ans. Microphone: This device is used to input sound or the voices of the people speaking.
Speakers: A speaker is used to listen to the sound/audio output from the computer.
Webcam: Webcam or web camera is needed to capture the video image of all the people participating in
videoconferencing.
3. ABC School newsletter contains text and images in it. The head teacher needs one thousand copies of this
newsletter. Give four reasons why a laser printer should be used rather than an inkjet or a dot matrix
printer.
Ans. (i) High quality printouts—better than inkjet or dot matrix.
(ii) Fast printouts—faster than inkjet or dot matrix.
(iii) Makes very little noise—much less than inkjet or dot matrix.
(iv) Low per page cost—cheaper than inkjet or dot matrix.