Deck 2: Computers: the Machines Behind Computing

Question 1

A computer with a 32-bit processor can perform calculations with larger numbers and be more efficient with smaller numbers than a 64-bit system..

Answer 1

False

Question 2

Trackballs are ideal for notebook computers because they occupy less space than a mouse.

Answer 2

True

Question 3

A magnetic disk is a type of secondary memory device.

Answer 3

True

Question 4

An Extended ASCII data code allows representation of 1024 characters.

Question 5

A disadvantage of trackball is that positioning is sometimes less precise than with a mouse.

Question 6

ENIAC is an example of a first-generation computer.

Question 7

The hardware components of a computer system consist of programs written in computer languages.

Question 8

The split keyboard has been developed for better ergonomics.

Question 9

A petabyte is 2³⁰ bytes.

Question 10

Computers and communication systems use data codes to represent and transfer data between computers and network systems.

Question 11

A serial port is a communication interface through which information is transferred one bit at a time.

Question 12

Very-large-scale integration (VLSI)circuits were introduced in the fifth generation computers.

Question 13

Inkjet printers produce characters by projecting electrically charged droplets of ink onto paper that create an image.

Question 14

Both the ALU and the control unit are part of the BIOS.

Question 15

The contents of Programmable read-only memory (PROM)can be erased and reprogrammed.

Question 16

A byte is a single value of 0 or 1.

Question 17

A bus can be internal or external.

Question 18

Random access memory can be read from and written to.

Question 19

An object code must be translated into source code in order for the computer to be able to read and execute.

Question 20

Light pen is an output device.

Question 21

How many bytes is a data of 48 bits?

A)6
B)24
C)64
D)384

Question 22

Extended ASCII data code allows representation of:

A)64 characters.
B)129 characters.
C)256 characters.
D)1024 characters.

Question 23

In a(n)____ file,each alphabetic,numeric,or special character is represented with a 7-bit binary number.

A)EBCDIC
B)Unicode
C)ASCII
D)extended ASCII

Question 24

A redundant array of independent disks (RAID)system is a collection of disk drives used for fault tolerance and improved performance.

Question 25

A NAS offers only storage; a SAN system offers both storage and file services.

Question 26

One of the major disadvantages of silicon is that:

A)mass production of silicon devices is difficult.
B)it cannot emit light.
C)it is very soft and fragile.
D)it is very costly.

Question 27

C++ and Java are examples of high-level language

Question 28

A SAN is a dedicated high-speed network consisting of both hardware and software used to connect and manage shared storage devices,such as disk arrays,tape libraries,and optical storage devices.

Question 29

IBM System z10 is an example of a ____ computer.

A)second-generation
B)third-generation
C)fourth-generation
D)fifth-generation

Question 30

Transistor was the major technology used during the ____ generation of hardware.

A)first
B)second
C)third
D)fourth

Question 31

A magnetic tape stores data sequentially.

Question 32

NAS is popular for Web servers and e-mail servers because it lowers management costs and helps make these servers more fault tolerant.

Question 33

Flash memory is used in memory cards.

Question 34

____ means saving data in computer memory and retrieval is accessing data from memory.

A)Encapsulation
B)Replication
C)Assembling
D)Storage

Question 35

A ____ is the size of a character.

A)nibble
B)bit
C)byte
D)word

Question 36

With NAS,as the number of users increase,the performance increases too.

Question 37

NAS is composed of arrays such that if one disk in the array fails,data is not lost.

Question 38

Sometimes,4GLs are called procedural languages.

Question 39

____ is 1 / 1,000,000,000,000 of a second.

A)Millisecond
B)Microsecond
C)Nanosecond
D)Picosecond

Question 40

An advantage of silicon over gallium arsenide is that:

A)it's less fragile than gallium arsenide.
B)it survives much higher doses of radiation than gallium arsenide.
C)it withstands higher temperatures than gallium arsenide.
D)it emits light, whereas gallium arsenide does not.

Question 41

The supervisor program of an OS is called the ____.

A)kernel
B)resource allocator
C)job manager
D)data manager

Question 42

An example of a(n)_____ is UNIX.

A)SAN
B)RAID
C)server
D)operating system

Question 43

_____ is a function performed by control programs that manages computer resources,such as storage and memory.

A)Job management
B)Resource allocation
C)Data management
D)Communication

Question 44

_____ works on the same principle as a barcode reader but reads text instead of barcodes.

A)Optical character reader (OCR)
B)Magnetic ink character recognition (MICR) system
C)Light pen
D)Touch screen

Question 45

The control programs managing computer hardware and software perform the ____ function to control and prioritize tasks performed by the CPU.

A)application management
B)resource allocation
C)data management
D)job management

Question 46

A(n)____ is a type of memory that stores data sequentially.

A)RAM
B)magnetic tape
C)optical disk
D)RAID

Question 47

____ memory,which is nonvolatile,holds data when the computer is off or during the course of a program's operation.

A)Raw
B)Open
C)Secondary
D)Replicated

Question 48

Computers and communication systems use _____ to represent and transfer information between computers and network systems.

A)Optical character reader (OCR)
B)light pens
C)data codes
D)Magnetic ink character recognition (MICR)

Question 49

_____ is a function performed by control programs that controls the transfer of data among parts of a computer system,such as exchange of information between the CPU and I / O devices.

A)Job management
B)Resource allocation
C)Data management
D)Communication

Question 50

A common type of _____ is WORM disc.

A)Magnetic storage
B)Optical storage
C)RAM
D)ROM

Question 51

ASCII defines up to ____ characters.

A)8
B)128
C)258
D)1024

Question 52

CD-ROMs and DVDs are examples of _____.

A)magnetic tapes
B)RAM
C)optical discs
D)main memory

Question 53

Which of the following is an input device?

A)Optical character reader
B)Plotter
C)Display monitor
D)Printer

Question 54

ROM is different from RAM in that:

A)it is volatile.
B)it is a secondary memory.
C)it is nonvolatile.
D)data can only be written to it, not read.

Question 55

The Clipboard's contents are stored on ____.

A)ROM
B)RAM
C)PROM
D)EPROM

Question 56

_____ is the most common output device for soft copy.

A)Liquid crystal display
B)Inkjet printer
C)Laser printer
D)Voice synthesis device

Question 57

_____ is a function performed by control programs that controls data integrity by generating checksums to verify that data has not been corrupted or changed.

A)Job management
B)Resource allocation
C)Data management
D)Communication

Question 58

_____ allow off-site users to connect to network resources,such as network file storage,printers,and databases.

A)Remote access servers (RAS)
B)Web servers
C)Application servers
D)Disk servers

Question 59

Typically,____ are used only in large enterprises because of their cost and installation complexity.

A)SANs
B)NASs
C)CD-ROMs
D)hard disks

Question 60

The term RAID stands for ____.

A)random access for independent disks
B)redundant access for independent devices
C)random array of independent drives
D)redundant array of independent disks

Question 61

____________________ read-only memory is similar to PROM,but its contents can be erased and reprogrammed.

Question 62

A(n)____________________ disk made of Mylar or metal is used for random-access processing.

Question 63

The ____________________ tells the computer what to do,such as instructing the computer which device to read or send output to.

Question 64

____________________ bits equal 1 byte.

Question 65

____________________ discs use laser beams to access and store data.

Question 66

Which of the following computer languages is the easiest to use?

A)Assembly language
B)First-generation language
C)Fourth-generation language
D)Machine language

Question 67

A SAN offers only storage; a(n)____________________ system offers both storage and file services.

Question 68

The ____________________ is the heart of a computer.

Question 69

_____ computer languages are machine independent and are called high-level languages.

A)First-generation
B)Second-generation
C)Third-generation
D)Fourth-generation

Question 70

____ OSs allow several users to use computer resources simultaneously.

A)Kernel
B)Web-driven
C)Hierarchical
D)Time-shared

Question 71

Microsoft PowerPoint is the most commonly used ____________________ software.

Question 72

Java and C++ are ____ languages.

A)assembly
B)high-level
C)machine
D)second-generation computer

Question 73

____________________ software is used for drafting and design and has replaced traditional tools,such as T-squares,triangles,paper,and pencils.

Question 74

The ____________________ function of an operating system manages computer resources,such as storage and memory.

Question 75

____________________ computers are usually compatible with the IBM System / 360 line introduced in 1965.

Question 76

____________________ is a light-sensitive stylus connected to the monitor with a cable.When it is placed on an on-screen location,the data in that spot is sent to the computer.

Question 77

The most common type of main memory is a semiconductor memory chip made of ____________________.

Question 78

An operating system (OS)is:

A)a set of programs for controlling and managing computer hardware and software.
B)a computer and all the software for managing network resources and offering services to a network.
C)is a collection of disk drives used for fault tolerance, typically in large network systems.
D)the main circuit board containing connectors for attaching additional boards.

Question 79

Imagine that you could ask your computer,"What product generated the most sales last year?"and the computer responds with a correct answer. ____________________ facilitate such natural conversations.

Question 80

____________________ servers store Web pages for access over the Internet.