Computer Awareness Objective Questions and Answers
Q: Which of the following websites provide the speech recognition technology by converting our speech message into text and send the same to our e-mail box?
(4) Both 1 and 2
(5) None of these
Explanation: Speech recognition refers to enabling computer to transcribe the human voice into readable words. Speech recognition technology does routine tasks effectively and can also do anything from choosing which button to press at a call centre to enabling medics to dictate notes while doing an examination. One area where speech recognition is very useful is dictating notes to oneself to remind one of things to do, or simply recording those random yet pertinent thoughts that occur to the individual during the day that might otherwise be forgotten.
Q: ‘EYCIN’ is a new technology used in Computer Science. Which of the following statement is true regarding this technology?
(1) ‘EYCIN’ is short form of ‘Eye-controlled interaction’.
(2) It is a computer system that tracks the human user’s eye movements and transmits it to the mouse pointer on the monitor.
(3) EYCIN has been developed by researchers at the Fraunhofer Institute for Industrial Engineering in Stuttgart, Germany.
(4) All of the above
(5) None of the above
Explanation: Researchers at the Fraunhofer Institute of Industrial Engineering in Stuttgart have developed an Eye Controlled Interaction System (EYCIN) that tracks user’s eye movements to interact, sans-hands, with any screen based device. It consists of a monitor linked to a camera that tracks the eye, using optical recognition software to detect the pupil. An on-screen pointer follows eye movements and when the user glances at a designated area for half a second, it interprets this as a mouse click.
Q: Android is an operating system for mobile devices such as smart phones and tablet computers. It has been developed by the Open Handset Alliance led by Google. Android is based on which of the following operating systems?
(1) Unix (2) Linux (3) Windows (4) Mac OS (5) None of these
Explanation: Android is a Linux-based operating system for mobile devices. Google released the Android code as open-source, under the Apache License. The Android Open Source Project (AOSP) is tasked with the maintenance and further development of Android
Q: Which of the following statement(s) is/are correct regarding the Computer Simulation Technique?
(1) A Simulator is a hardware device to model a real life situation.
(2) Computer Simulations leads to a large volume of information
(3) Monte Carlo methods are often used in computer simulations of Physical and Mathematical System.
(4) Both 2 and 3
(5) All of the above
Explanation: In Computer Science, a Simulator is a software program to model a real-life situation on a computer so that it can be studied to see how the system behaves. To simulate a phenomenon, on a computer we need a mathematical model that imitates the phenomenon. Computer simulation leads to a large volume of information. Then we need facilities to store it and also tools to analyse and understand.
Q: Tablets that support 23 Indian languages have been launched. Which of the following statement(s) is/are correct regarding those tablets?
(1) The two tablet PCs, ‘Ira’ and ‘Ira Thing’, which support 23 Indian languages, have been launched by a Mumbai-based company, Wishtel.
(2) The 5.5 inch portable devices run on TaiWanese chipmaker VIA Technology’s 800 MHZ processor.
(3) They operate on the Google Android ecosystem.
(4) Both 1 and 3
(5) AH of the above
Explanation: The tablet PCs ‘Ira’ and ‘Ira Thing’ are seven inch portable devices. ‘Ira’ sports a TFT LCD resistive touch screen, 256 MB RAM and 2 GB of storage, the top of line ‘Ira Thing’ features a capacitive touch screen, 215 MB RAM with 4 GB of storage.
Q: Which of the following is a criminal activity attempting to acquire sensitive information such as passwords, credit cards details by masquerading as a trustworthy person or business in an electronic communication?
(1) Spoofing (2) Phising (3) Stalking (4) Hacking (5) None of these
Explanation: A spoofed e-mail is one that appears to originate from one source but actually has been sent from another source. Cyber stalking involves following a person’s movements across the internet by posting messages on the bulletin boards frequented by the victim, entering the chat-rooms frequented by the victim, constantly bombarding the victim with e-mails etc. Hacking is usually understood to be the unauthorized access of a compute’ system and networks.
Q: In order to reproduce sound, a Compact Disk (CD) audio player uses a
(1) quartz crystal
(2) titanium needle
(3) laser beam
(4) barium titanate ceramic
(5) None of the above
Explanation: Interference is the reason for reproducing sound. Interference takes place due to the reflection of light rays from the top layer of the CD and from the bottom layer of the CD. To reflect from the bottom layer, light has to transmit through the material of the CD and the titanium needle does the same.
8. ‘Cyberknife’ is a tool used in the treatment of cancerous tumours. In this context, which one of the following statements is not correct?
(1) It is a robotic image-guided system.
(2) It delivers an extremely precise dose of radiation.
(3) It has the capability of achieving sub-millimetre accuracy.
(4) It can map the spread of tumour in the body.
(5) None of the above
Explanation: In cyberknife, radiation source is mounted on a industrial robot. Mounting the radiation source on the robot allows complete freedom to position the radiation within a space about the patient. Cyberknife is a non-invasive, sub-millimetre accurate cancer treatment that can treat most cancers without the need for surgery or nasty drugs and has no side-effects. The treatment delivering beams of high dose radiation to tumours with extreme accuracy offers a new hope to patients worldwide.
Q: A computer robot has been designed to pick up a suspicious device and put it in a safe container designed to absorb shock on explosion or use one of its tools to disarm or otherwise disrupt a bomb. What is the name of that robot?
(1) Cute (2) Andros (3) Asimo (4) AIBO (5) QRIO
Explanation: Andros is a capable machine which can climb stairs and manoeuvre through difficult terrain, even crossing ditches, it is sealed to with stand extreme environments and can work on almost any kind of surface. Most importantly, it has tools to counteract bombs. It is being used to diffuse bombs in New Mexico region of the USA.
Q:Which of the following is a mathematical technique for dealing with imprecise data and problems that have many solutions, rather than one?
(1) Expert system (2) Flash logic (3) Fuzzy logic (4) Handshake (5) Instant logic
Explanation: Fuzzy logic is used for solving problems with expert system and real-time systems that must react to an imperfect environment of highly variable, volatile or unpredictable conditions. It circumvents abrupt changes in operation that could result from relying on traditional either-or and all-or-nothing logic. The concept was conceived by Lotfi Zadeh, former chairman of the Electrical Engineering and Computer Science Department at the University of California at Berkeley.
Q: Which of the following statements is true with respect to the CMOS memory?
(1) CMOS is an abbreviation for Complementary Metal Oxide Semiconductor.
(2) CMOS memory draws very little current.
(3) The CMOS set-up-is part of the BIOS program.
(4) All of the above
(5) None of the above
Explanation: CMOS uses a complimentary arrangement of both NMOS and PMOS, negative and positive metal oxide transistor circuits. The CMOS memory is used to store system configuration information, such as disc. parameters, memory Configuration, and the date-time, some of which you enter in the CMOS set-up program. It is used by the Basic Input Output System (BIOS), a program permanently stored in the flash memory on recent motherboards and in Read Only MeTnory (ROM) on older motherboards, to configure the computer.
Q: In computing, SIMD is a technique employed to achieve data level parallelism, as in a vector or array processor. SIMD stands for
(1) Similar Instruction Manipulated Data
(2) Single Instruction Multiple Data
(3) Symmetric Information Multiple Data
(4) Systematic Instruction Managed Data
(5) None of the above
Explanation: Single Instruction Multiple Data (SIMD) was first popularized in large-scale supercomputers, smaller scale SIMD operations have now become widespread in personal computer hardware. Today the term is associated, almost entirely, with these smaller units.
Q: Which of the following is the recent applications available on the internet?
(1) Huebrix (2) Beezee (3) My Life Today (4) All of these (5) None of these
Explanation: Huebrix is a classic example of how simple graphics, coupled with strong game play can make for a wonderful pastime. It is provided with an empty grid of squares with a few coloured tiles on it. Each of the tiles has a number denoting how many empty squares it can fill.Beezee is an application that takes over whenever a person is too busy to receive a phone call. The application lets you create custom messages and set a time period for them and anyone receive the call later.
My Life Today is a simple application that lets you manage all your instant communication – Facebook, Twitter, G-mail etc through a single tabbed window. You will have to connect the application to your account for it to work properly.
Q: Which of the following pairs is correctly matched?
(1) Dubbing—Transfer of audio or video information from one media to another
(2) Camcorder—A digital camera
(3) Web cam—A real time camera
(4) Blog—A website
(5) All are correctly matched
Explanation: Dubbing is a term used to describe the transfer of audio or video information from one media to another. Camcorder is generally a digital camera for recording video images and audio onto a storage device.
. Web cam (web camera) is a real time camera, whose images can be accessed using the world wide web
(www), instant messaging, or a PC video calling application.
Blog is a website where entries are made in journal style and displayed in a reverse chronological order.
Q: Which of the following is a web page browser developed by the Centre for Development of Advanced Computing (C-DAC) for visually impaired users?
(1) Jyoti Drishti (2) Divya Jyoti (3) Shruti Drishti (4) Shruti Jyoti (5) None of these
Explanation: Shruti Drishti is considered to provide user-friendly environment, sharing and Strengthening of global knowledge by removing barriers and providing equitable access to information for all by use of assistive technology. As an integrated Text-to Speech (TtS) and Text-to-Braile (TtB) system for the visually impaired using the information extraction and retrieval techniques, Shruti Drishti provides a high value integrated web browsing through listening any time and at any place.