Friday, 24 March 2017

QUIZ8:COMPUTERS

Q1. Instructions that are required to start a computer referred to as bootstrap.
Where is the bootstrap loader in the CPU?
(a)SRAM
(b)DRAM
(c)ROM
(d)Hard disk
(e)cache memory

Q2. E-commerce refers to paperless exchange of business information using following ways. Which of the following is 'not' an component of E-commerce?
(a) EDI
(b) E-MAIL
(c) EFT
(d) Electronic Bulletin Board
(e) None of these

Q3. A watermark is a picture that shows up faintly behind the text on a word document page. Where is this option available in MS-WORD?
(a) Page Layout
(b) References
(c) Mailings
(d) show
(e) Home

Q4. Which of the following is a format in which a server will respond when received for a transmission of information request containing header and footer to tell computer what’s in the file?
(a) Frame
(b) Packet
(c) Fragment
(d) Block
(e) Page

Q5. What do you understand by the term 'access time'?
(a) Latency Time
(b) Seek time + Latency time
(C) Seek time* Latency time
(d) Seek time
(e) None of these

Q6. The____ term of a computer controls the real time clock to maintain date and time.
(a) BIOS
(b) SCSI
(c) IDE
(d) CMOS chip
(e) None of these

Q7. Which term is used to compare processing speeds of various systems?
(a) EFTS
(b) MPG
(c) MIPS
(d) CPS
(e) None of these

Q8. The hardware attached to a computer tower is as
(a) CPU
(b) Software
(c) Peripheral
(d) Storage
(e) None of these

Q9. What is the name of the program that controls the computer?
(a) Operating System
(b) An application program
(c) A Browser
(d) File manager
(e) Compiler

Q10. What is the full form of DMA?
(a) Distinct Memory Access
(b) Direct Memory Access
(c) Direct module access
(d) Direct Memory Allocation
(e) None of these

Q11. A program embedded in a semiconductor chip during manufacture is called_____.
(a) Humanware
(b) Firmware
(c) Liveware
(d) Hardware
(e) Software

Q12. Which of the following is generally used for selecting or highlighting?
(a) Icon
(b) Keyboard
(c) Floppy Disk
(d) Mouse
(e) None of these

Q13. Which of the following units is used to measure the speed of the processor?
(a) Kilobytes (KB)
(b) Gigabytes (GB)
(c) Gigahertz (Ghz)
(d) Kilobits (kb)
(e) Megabytes (MB)

Q14. What does GUI stand for?
(a) Graphics User Interface
(b) Graphical User Interface
(c) Graphical Universal Interface
(d) General Utility Interface
(e) None of these

Q15. A ______ is a component of a motherboard which absorbs the heat produced by the processor and other components of a computer.
(a) Heat sink
(b) North bridge 
(c) CPU socket 
(d) CMOS Battery
(e) None of these

Solutions
S1. Ans.(c)
Sol. The BIOS is a type of firmware used to perform hardware initialization during the booting process (power-on startup) on IBM PC compatible computers, and to provide runtime services for operating systems and programs.

S2. Ans.(e)
Sol. E-commerce is the buying and selling of goods and services, or the transmitting of funds or data, over an electronic network, primarily the internet. 

S3. Ans.(a)
Sol.  Steps to Turn a picture or a company logo into a watermark. On the Page Layout tab, in the Page Background group, click Watermark. Choose Custom Watermark. Select Picture watermark, and then choose Select Picture. Select the picture that you want, and then choose Insert.

S4. Ans.(b)
Sol. A network packet is a formatted unit of data carried by a packet-switched network. Computer communications links that do not support packets, such as traditional point-to-point telecommunications links, simply transmit data as a bit stream. 

S5. Ans.(b)
Sol. Access time is the time from the start of one storage device access to the time when the next access can be started. Access time consists of latency (the overhead of getting to the right place on the device and preparing to access it) and transfer time.

S6. Ans.(d)
Sol. The CMOS is a computer chip on the motherboard. There is a CMOS battery whihc supplies constsant power to that CMOS chip. Most common effect of CMOS is the time and date setting which will be reset back to the manufactured data if it has been off for a long period of time.

S7. Ans.(c)
Sol.  MIPS (million instructions per second) is a general measure of computing performance and, by implication, the amount of work a larger computer 

S8. Ans.(c)
Sol. Scanners, printers, and speakers are peripheral devices for a computer because they aren't central to the working of the computer itself.

S9. Ans.(a)
Sol. An operating system is a software which performs all the basic tasks like file management, memory management, process management, handling input and output, and controlling peripheral devices such as disk drives and printers.

S10. Ans.(b)
Sol. Direct memory access (DMA) is a method that allows an input/output (I/O) device to send or receive data directly to or from the main memory, bypassing the CPU to speed up memory operations. The process is managed by a chip known as a DMA controller (DMAC).

S11. Ans.(b)
Sol. Firmware is programming that's written to the read-only memory (ROM) of a computing device.

S12. Ans.(d)
Sol. A computer mouse is an input device that is most often used with a personal computer. Moving a mouse along a flat surface can move the on-screen cursor to different items on the screen. Items can be moved or selected by pressing the mouse buttons (called clicking).

S13. Ans.(c)
Sol. The gigahertz, abbreviated GHz, is a unit of alternating current (AC) or electromagnetic (EM) wave frequency equal to one thousand million hertz (1,000,000,000 Hz).

S14. Ans.(b)
Sol. A GUI is a type of human-computer interface (i.e., a system for people to interact with a computer) that uses windows, icons, pull-down menus and a pointer and that can be manipulated by a mouse (and usually to some extent by a keyboard as well).

S15. Ans.(a)
Sol. A component designed to lower the temperature of an electronic device by dissipating heat into the surrounding air. All modern CPUs require a heat sink.