IS 511 test 2 Topic 34 and 5 PDF

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Summary

Computers contain many parts or components that are called hardware. Hardware is the electric,
electronic, and mechanical equipment that makes up a computer. Software is the series of
instructions that tells the hardware how to perform tasks....

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TOPIC 3 – THE COMPUTER SYSTEM AND MOBILE DEVICES EASY QUESTIONS Which of the following is required when more than one person uses a central computer at the same time? A. Terminal B. Light pen C. Digitize D. Mouse ANSWER: A Which of the following required large computer memory? A. Imaging B. Graphics C. Voice D. All of above ANSWER: D A digital computer did not score over an analog computer in terms of A. Speed B. Accuracy C. Reliability D. Cost ANSWER: D A plastic card similar to a credit card but having some memory and a microprocessor embeded within it is _________ A. Punch Paper Tape B. Chip Card C. Card Punch D. Magnetic Tape ANSWER: A A storage device where the access time is dependent upon the location of the data is ______ A. Random access B. Serial access C. Sequential access D. Transaction access ANSWER: B Which of the following memories has the shortest access time? A. Cache memory B. Magnetic Bubble memory C. Magnetic core memory D. RAM ANSWER: A

'megabytes' of computer storage capacity consists of A. one million B. two million C. three million D. four million ANSWER: A A small group of bits treated as a single unit is called as A. bits B. binary characters C. input characters D. bytes ANSWER: D Typical data transfer rates in LAN are of the order of A. Bits per sec B. Kilo bits per sec C. Mega bits per sec D. None of the above ANSWER: C The central processing unit(CPU) consists of A. Input, output and processing B. Control unit, Primary storage and secondary storage C. Control unit arithmetic-logic unit, and primary storage D. Control unit, processing, primary storage ANSWER: D A (n)___________ chip provides flexibility and expandability for a computer system; it contains essential Information that is required every time the computer system is turned on. A. ROM B. RAM C. TCP/IP D. CMOS ANSWER: D The most commonly used standard data code to represent alphabetical, numerical and punctuation characters used in electronic data processing system is called A. ASCII B. EBCDIC C. BCD D. All of above ANSWER: A ROM is type of __________ A. semiconductor B. adapter C. network D. firmware ANSWER: D

Type of RAM that is NOT temporary is _________ A. virtual memory B. Flash RAM C. cache memory D. virtual and cache memory ANSWER: B Random-access memory (RAM) is a kind of ________ storage. A. permanent B. temporary C. flash D. smart ANSWER: B A (n)__________ also called a data bus, connects the parts of the CPU together. A. adapter card B. parallel port C. serial port D. bus line ANSWER: D Programs designed to perform specific tasks is known as A. System software B. Application Software C. Utility Programs D. Operating system ANSWER: C Which computer memory is used for storing programs and data currently being processed by the CPU? A. Mass memory B. Internal memory C. Non-volatile memory D. PROM ANSWER: B Which of the following memory medium is not used as main memory system? A. Magnetic core B. Semiconductor C. Magnetic tape D. Both a and b ANSWER: C The memory which is programmed at the time it is manufactured A. POM B. RAM C. PROM D. EPROM ANSWER: A

Symbols such as letters or any digit are called A. characters B. small bits C. small bytes D. output characters ANSWER: A Complete set of special characters used by any system is classified as A. control characters B. graphics characters C. character set D. alphanumeric characters ANSWER: C INTERMEDIATE QUESTIONS The transistorized computer circuits were introduced in the A. First generation B. Second generation C. Third generation D. Fourth generation ANSWER: B ___________is a set of hardware and software standards that allows expansion boards and other Devices to install themselves. A. Plug and play B. Unicode C. System unit D. Industry Standard Architecture ANSWER: A Microprocessors can be used to make A. Computer B. Digital systems C. Calculators D. All of the above ANSWER: D Which of the following is a secondary memory device? A. Keyboard B. Disk C. ALU D. All of the above ANSWER: B Microcomputers process data and instructions in_________ A. milliseconds B. microseconds C. nonseconds D. picoseconds ANSWER: B

ASCII, EBCDIC, and Unicode are examples of _________ A. two-state systems B. integrated circuits C. binary coding schemes D. adapter cards ANSWER: C A chip is called a ________ A. silicon chip, processor, or system clock B. semiconductor, silicon chip, or expansion card C. processor, smart card, or integrated circuit D. silicon chip, semiconductor, or integrated circuit ANSWER: D CD-ROM A. Is a `semiconductor memory B. Memory register C. Magnetic memory D. None of the above ANSWER: D Which of the following is not a primary storage device? A. Magnetic tape B. Magnetic disk C. Optical disk D. None of the above ANSWER: D The accuracy of the floating-point numbers representable in two 16-bit words of a computer is approximately A. 16 digits B. 6 digits C. 9 digits D. All of above ANSWER: B A floppy disk contains A. Circular tracks only B. Sectors only C. Both circular tracks and sectors D. All of the above ANSWER: C A name or number used to identify a storage location is called A. A byte B. A record C. An address D. All of above ANSWER: C

Which of the following registers is loaded with the contents of the memory location pointed by the PC? A. Memory address register B. Memory data register C. Instruction registers D. Program counter ANSWER: C The least significant bit of the binary number, which is equivalent to any odd decimal number, is: A. 0 B. 1 C. 1 or 0 D. 3 ANSWER: A An output device that uses words or messages recorded on a magnetic medium to produce audio response is _________ A. Magnetic tape B. Voice response unit C. Voice recognition unit D. Voice band ANSWER: B The two types of computer chips are A. External memory Chip B. Primary memory Chip C. Microprocessor chips D. Both A and B ANSWER: D A set of information that defines the status of resources allocated to a process is ... A. Process control B. ALU C. Register unit D. Process description ANSWER: D A network topology in which the outer nodes connect to a single central node is______ A. LAN B. Broadband network C. Passive star D. Pass band ANSWER: C An integrated circuit is A. A complicated circuit B. An integrating device C. Much costlier than a single transistor D. Fabricated on a tiny silicon chip ANSWER: D

Most important advantage of an IC is its A. Easy replacement in case of circuit failure B. Extremely high reliability C. Reduced cost D. Low powers consumption ANSWER: B The processes of starting or restarting a computer system by loading instructions from a secondary storage device into the completer memory is called A. Duping B. Booting C. Padding D. All of above ANSWER: B

ADVANCED QUESTIONS

A physical connection between the microprocessor memory and other parts of the microcomputer is known as __________ A. Path B. Address bus C. Route D. All of the above ANSWER: B Which of the following registers is used to keep track of address of the memory location where the next instruction is located? A. Memory address register B. Memory data register C. Instruction register D. Program counter ANSWER: D How many address lines are needed to address each memory location in a 2048 x 4 memory chip? A. 10 B. 11 C. 8 D. 12 ANSWER: B The computer code of the interchange of information between terminals is ... A. ASCII B. BCD C. EBCDIC D. All of the above ANSWER: A

A hybrid computer _________ A. Resembles digital computer B. Resembles analog computer C. Resembles both a digital and analog computer D. None of the above ANSWER: C A technique used by codes to convert an analog signal into a digital bit stream is known as _____ A. Pulse code modulation B. Pulse stretcher C. Query processing D. Queue management ANSWER: A Which of the following is used for manufacturing chips? A. Control bus B. Control unit C. Parity unit D. Semiconductor ANSWER: D Which one of the following input device is user-programmable? A. Dumb terminal B. Smart terminal C. VDT D. Intelligent terminal ANSWER: D What is the responsibility of the logical unit in the CPU of a computer? A. To produce result B. To compare numbers C. To control flow of information D. To do math's works ANSWER: B The CPU hardware has a wire called __________ that the CPU senses after executing every instruction. A. interrupt request line B. interrupt bus C. interrupt receive line D. interrupt sense line ANSWER: A Function of running and loading programs and usage of peripherals is function of A. operating system B. enquiry system C. dump programs D. function system ANSWER: A

The hardware mechanism that allows a device to notify the CPU is called _______. A. polling B. interrupt C. driver D. controlling ANSWER: B

TOPIC 4 – INPUT AND OUTPUT

EASY QUESTIONS

The ______ register is read by the host to get input. A. flow in B. flow out C. data in D. data out ANSWER: C The ______ register is written by the host to send output. A. status B. control C. data in D. data out ANSWER: D An I/O port typically consists of four registers status, control, ________ and ________ registers. A. system in, system out B. data in, data out C. flow in, flow out D. input, output ANSWER: B One computer that is not considered a portable computer is A. Minicomputer B. A laptop computer C. Mini computer D. All of the above ANSWER: A A (n) ________ typically combines the capabilities of a scanner, printer, fax, and copying machine. A. multifunctional device B. output device C. input device D. MICR ANSWER:A

Speakers and headphones are the most widely used _______ devices. A. audio-input B. audio C. audio-output D. multifunctional ANSWER: C Pictures and graphs that are to be printed with help of chosen characters are called A. graphics characters B. alphanumeric characters C. character sets D. control characters ANSWER: A _________ uses the Internet rather than traditional communication lines to connect two or more people via telephone. A. A multifunctional device B. A fax machine C. Telephony D. An output device ANSWER: C 'dot matrix' and 'solid font' printers are examples of A. line printers B. of-band printer C. character printer D. ink printers ANSWER: C The _________ present a uniform device-access interface to the I/O subsystem, much as system calls provide a standard interface between the application and the operating system. A. devices B. buses C. device drivers D. I/O systems ANSWER: C A dumb terminal has A. An embedded microprocessor B. Extensive memory C. Independent processing D. A keyboard and screen ANSWER: D 'ink-jet printers' or 'band printers' are classified as A. character printer B. ink printers C. line printers D. of band printer ANSWER: C

Printer in which printing head and paper is forced together to form letters is called A. impact printer B. non impact printer C. page printers D. line printers ANSWER: A Computer operators A. writes computer programs for specific problems B. operate the device which input and output data from the computer C. normally require a college degree in computer science D. all of the above ANSWER: B Display technology that uses gas between two glass sheets is classified as A. less emitting diodes B. low emission displays C. light-emitting diodes D. plasma displays ANSWER: D A marker on computer screen used to show current position or for entering data is called A. colored marker B. cursor C. position checker D. screen contents ANSWER: B Error in program is called A. bug B. debug C. highlighter statement D. ordinary statement ANSWER: A Generally which button of the mouse is used for OK? a. Left b. Right c. Middle d. Wheel ANSWER: A One of the main feature that distinguish microprocessors from micro-computers is A. Words are usually larger in microprocessors B. Words are shorter in microprocessors C. Microprocessor does not contain I/O devices D. Exactly the same as the machine cycle time ANSWER: C

A handheld, book-sized device used to read downloaded content is a _________ A. wand reader B. e-book C. light pen D. digital notebook ANSWER: B A (n) __________ is an input device similar to a copy machine. A. flatbed scanner B. printer C. graphic tablet D. portable scanner ANSWER: A A (n) __________ mouse emits and senses light to detect movement. A. cordless B. wireless C. pointer D. optical ANSWER: D ___________ perform an operation when held down with another key. A. Toggle keys B. Combination keys C. Wand readers D. Monitors ANSWER: B A wand reader is a type of __________ recognition device. A. MICR B. OCR C. OMR D. scanner ANSWER: D LCD stands forA. Lead crystal device B. Light central display C. Liquid central display D. Liquid Crystal display ANSWER: D Computer or system peripherals that receives data from processing unit are called A. output devices B. receiver C. preprinted documents D. analogue devices ANSWER: A

New technology named 'LED' is abbreviation of A. light-emitting diodes B. liquid emitting displays C. less emitting diodes D. low emission displays ANSWER: A Any data and instruction entered in the memory of a computer is _______ A. Storage B. Output C. Input D. Information ANSWER: C INTERMEDIATE QUESTIONS Which of the following produces the best quality graphics reproduction? A. Laser printer B. Ink jet printer C. Plotter D. Dot matrix printer ANSWER: C A special-purpose output device for producing bar charts, maps, architectural drawings, and threeDimensional illustrations is a _________ A. chain printer B. portable scanner C. ink-jet printer D. plotter ANSWER: D A network computer is also known as a (n) _________ A. thin client B. dumb terminal C. Net PC D. Web terminal ANSWER: C Hard copy of a document is—A. Printed on printer B. Stored in floppy C. Store in CD D. Store in hard disk ANSWER: A Process to exit from computer by giving correct instructions such as 'EXIT' is classified as A. log in B. process out C. process in D. log out ANSWER: D

Special set of characters that computer associates with specific user identification is classified as A. password B. identity code C. enquiry code D. dump code ANSWER: A Several programs run at same time and storage is shared especially in A. microcomputers B. mainframe computers C. enquiry computers D. dump computers ANSWER: B Printing technique in which characters are produced using metals pieces is called A. matrix font B. solid fonts C. page font D. paragraph font ANSWER: B Which of the following groups have only input devices? A. Mouse, keyboard, monitor B. Mouse keyboard, printer C. Mouse, keyboard, plotter D. Mouse, keyboard, scanner ANSWER: D A displaying screen in which text is presented in one color and background is of any other color is called A. monochrome screen B. high resolution screen C. low resolution screen D. medium resolution screen ANSWER: A Per minute printing speed of large laser printer is A. 150 pages B. 200 pages C. 250 pages D. 300 pages ANSWER: A Error which occurs when program tried to read from file without opening it is classified as A. execution error messages C. built in messages C. user-defined messages D. half messages ANSWER: A

Error which occurs when program tried to use a device and is not switched on is classified as A. user-defined messages B. half messages C. execution error messages D. built in messages ANSWER: C Speed of transmitted data is measured by A. baud B. band C. visual bands D. telex bands ANSWER: A When all bits are sent at same time for each character, this is called A. parallel transmission B. wide transmission C. local transmission D. serial transmission ANSWER: A To make the number pad act as a directional arrow, we press_______ A. Num Lock B. Caps Lock C. Arrow Lock D. Shift ANSWER: D The _________ are reserved for events such as unrecoverable memory errors. A. nonmaskable interrupts B. blocked interrupts C. maskable interrupts D. None of these ANSWER: A The _________ determines the cause of the interrupt, performs the necessary processing and executes a return from the interrupt instruction to return the CPU to the execution state prior to the interrupt. A. interrupt request line B. device driver C. interrupt handler D. All of these ANSWER: C _______ is fast speed printer. A. Laser printer B. Jet printer C. Thermal printer D. None of these ANSWER: A

The general method for to input the text and numerical data in computer is by– A. Keyboard B. Scanner C. Printer D. Platter ANSWER: A Output devices make it possible to_______ A. View and print a data B. Scan a data C. Input a data D. Sending a data ANSWER: A All components work together as a unit is called A. system B. component classification C. storing system D. operating system ANSWER: A ADVANCED QUESTIONS A ________ is a collection of electronics that can operate a port, a bus, or a device. A. controller B. driver C. host D. bus ANSWER: A A general program that are written to help users and work a s an interface between computer and users is called A. hardware B. software C. programs D. computer peripherals ANSWER: B All devices and programs work together to perform any particular task are best said to be A. information system B. information processing system C. operating system D. component classification ANSWER: B Stock maintaining control system in store which consists hardware and software to contact and manage suppliers is called A. system B. component classification C. information processing system D. operating system ANSWER: C

If one or more devices use a common set of wires to communicate with the computer system, the connection is called ______. A. CPU B. Monitor C. wirefull D. bus ANSWER: D Processing that is carried out by using remote terminal processors is called A. teleprocessing B. digital processing C. logic processing D. remote processing ANSWER: A Process of data communication over relatively larger distances is called A. data communication B. communication C. data terminals D. telecommunications ANSWER: D Which of the following groups have only output devices? A. Scanner, printer, monitor B. Keyboard, printer, monitor C. Mouse, printer, monitor D. Platter, printer, monitor ANSWER: D Output/input devices enabling users to communicate with computer system are called A. terminals B. telecommunication C. data communication D. communication ANSWER: A A ____ a set of wires and a rigidly defined protocol that specifies a set of messages that can be sent on the wires. A. port B. node C. bus D. None of these ANSWER: C When device A has a cable that plugs into device B, and device B has a cable that plugs into device C and device C plugs into a port on the computer, this arrangement is called a _________. A. port B. daisy chain C. bus D. cable ANSWER: B

TOPIC 5 – OPERATING SYSTEMS

EASY QUESTIONS Secondary storage memory type is A. volatile memory B. non volatile memory C. backup memory D. impact memory ANSWER: B An access store from which data can be read and can be written on it, this storage is classified as A. read only memory B. random access memory C. random only memory D. read access memory ANSWER: B A single disc which is held in protective jacket and is magnetized surface is available to read or write data is classified as A. floppy disc B. fixed disc C. magnetized disc D. hard disc ANSWER: A Main memory is also called as A. immediate access store B. auxiliary storage C. secondary storage D. backing store ANSWER: A Type of memory to which power is switched off usually lost its data, classified as A. volatile storage B. non volatile storage C. impact storage D. non impact storage ANSWER: A Time a device takes to read actual data is classified as A. transfer time B. seek time C. seek delay D. access delay ANSWER: A

Type of memory which is used to read data but not to write on it is classified as A. random only memory B. read access memory C. read only memory D. random access memory ANSWER: C Type of backup storage in which data is read in a sequence is classified as A. storage access B. permanent access C. direct access D. serial access ANSWER: D

INTERMEDIATE QUESTIONS A piece of data that can be transferred between CPU and backing store as a single unit is called A. block B. streamer C. cartridge D. gaps ANSWER...