Q1. Name the type of memory which clears everything when the power of a computer gets witched off.
(a) Volatile
(b) Non-volatile
(c) ROM
(d) Flash memory
(e) All of these
Q2. A handheld device that allows you to control your computer without typing instructions from a keyboard is known as_______.
(a) Tablet
(b) PDA
(c) Mouse
(d) Mike
(e) None of these
Q3. Who invented the machine to add numbers quickly and accurately?
(a) Joseph Marie Jacquard
(b) Gottfried Wilhelm von Leibniz
(c) Blaise Pascal
(d) Herman Hollerith
(e) None of these
Q4. Which output device transfers processed information into a printed page?
(a) Scanner
(b) Printer
(c) Monitor
(d) CD-ROM
(e) Digital Camera
Q5. Which of the following units performs the arithmetic tasks (such as addition, subtraction, multiplication and division) and logical operations?
(a) Input unit
(b) Control unit
(c) Arithmetic Logic Unit (ALU)
(d) Storage unit
(e) Memory Unit
Q6. What converts high-level languages into machine language?
(a) Complier
(b) Assembler
(c) Operating System
(d) CPU
(e) Browser
Q7. Which of the following electronic devices processes data, converting it into information?
(a) Computer
(b) Memory
(c) Case
(d) Stylus
(e) None of these
Q8. Twisted pair wire are commonly used in
(a) Telephone networks
(b) Cable TV networks
(c) Computer networks
(d) Both (a) & (b)
(e) None of the above
Q9. In network topology, all devices on a network are connected to a single continuous cable called
(a) Star
(b) Ring
(c) Bus
(d) Tree
(e) Mesh
Q10. A term for retrieving software or other files on your computer from a computer network or Internet.
(a) Upload
(b) Download
(c) Sharing
(d) Mailing
(e) Editing
Q11. Which one of the following is internet Standard Protocol?
(a) TML
(b) COBOL
(c) JAVA
(d) C++
(e) TCP/IP
Q12. Name the network that is geographically distributed in a small area. For example, it allows connection among computers of two separate departments in a building.
(a) LAN
(b) WAN
(c) TCP/IP
(d) OSI
(e) None of the above
Q13. Operating system that allows only one user to work on a computer at a time is known as
(a) Single user operating system
(b) Multiuser operating system
(c) Single tasking operating system
(d) Multitasking operating system
(e) Real time operating system
Q14. What acts as master software that works as a mediator between a computer user and the hardware of a computer?
(a) Application Program
(b) Hardware
(c) Software
(d) Operating system
(e) User
Q15. In which process, each program is split into fixed size program components called pages?
(a) Multitasking
(b) Logging on
(c) Paging
(d) Scheduling
(e) Time Sharing
Solutions
S1. Ans.(a)
Sol. Volatile memory is a type of memory that clears everything when the power of a computer gets switched off, whereas nonvolatile memory retains the data even when the power gets switched off. Moreover, ROM and flash memory also retain the data in case the power gets switched off.
S2. Ans.(c)
Sol. A mouse is a handheld device that allows you to control your computer without typing the instructions from the keyboard. By using a mouse, you can select icons, open programs, and select, commands, present in a program by moving the pointer.
S3. Ans.(c)
Sol. In 1642, Blaise Pascal developed a machine that was used to perform additions quickly and accurately. This machine was called the adding machine or Pascaline.
S4. Ans.(b)
Sol. Printers transfers processed information into printed page. Different types of printer are Ink Jet, Laser, drum etc.
S5. Ans.(c)
Sol. Arithmetic Logic Unit (ALU) performs arithmetic and logical operations. On the other hand, control unit extracts instructions from the computer memory, decodes and executes instructions, and takes help of the ALU if required. Storage unit or memory unit is used to store the data, while the input is used to enter data into the computer.
S6. Ans.(a)
Sol. A complier is used to translate a program written in a high-level language to a machine language by compiling the entire program in one go.
S7. Ans.(a)
Sol. A computer is an electronic device that accepts and stores data input, processes the data input, and returns as information.
S8. Ans.(a)
Sol. Twisted pair wires are used in telephone networks and for digital data transmission over short distances up to 1 km.
S9. Ans.(c)
Sol. The bus topology is also known as linear topology. This type of topology was used in traditional data communication networks. In this topology, a host located at one end of the bus (or the central node) communicates with all the other nodes attached along its length.
S10. Ans.(b)
Sol. Download refers to the process of obtaining software or other files on your computer from a computer network or the Internet.
S11. Ans.(e)
Sol. TCP/IP, which stands for Transmission control Protocol/
Internet Protocol, is an industry-standard protocol suite for WANs. On the other hand, HTML, COBOL, JAVA and C++ are computer programming languages.
S12. Ans.(a)
Sol. LAN is a privately owned network of an organisation. It is used to connect a computer with additional hardware, such as a printer, at home or in office. The range of LAN is restricted to a few kilometers only. It is more reliable and better speed for small area.
S13. Ans.(a)
Sol. Single user operating system allows only one user to work on a computer at a time. An example of single user operating system is MS-DOS.
S14. Ans.(d)
Sol. Operating system provides an interface between a user and computer hardware. It enables a user to utilise hardware resources efficiently.
S15. Ans.(c)
Sol. Paging is a process in which each program is split into fixed size program components called pages. Some pages of it are loaded in the main memory, depending upon the storage availability and requirement to execute program.
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