ANSWERS COMPLETE PRACTICE
RESOURCE VERIFIED
●● Server
Answer: A computer used for running larger programs for multiple
users, often simultaneously, and typically accessed only via a network.
●● Supercomputer:
Answer: A class of computers with the highest performance and cost;
they are configured as servers and typically cost tens to hundreds of
millions of dollars.
●● Embedded computer:
Answer: A computer inside another device used for running one
predetermined application or collection of software.
●● Personal mobile devices (PMDs)
Answer: are small wireless devices to connect to the Internet; they rely
on batteries for power, and software is installed by downloading apps.
Conventional examples are smart phones and tablets.
●● Cloud computing
,Answer: refers to large collections of servers that provide services over
the Internet; some providers rent dynamically varying numbers of
servers as a utility.
●● Software as a Service (SaaS)
Answer: delivers software and data as a service over the Internet, usually
via a thin program such as a browser that runs on local client devices,
instead of binary code that must be installed, and runs wholly on that
device. Examples include web search and social networking.
●● Multicore microprocessor
Answer: A microprocessor containing multiple processors ("cores") in a
single integrated circuit.
●● Acronym
Answer: A word constructed by taking the initial letters of a string of
words. For example: RAM is an acronym for Random Access Memory,
and CPU is an acronym for Central Processing Unit.
●● Terabyte (TB):
Answer: Originally 1,099,511,627,776 (240) bytes, although
communications and secondary storage systems developers started using
the term to mean 1,000,000,000,000 (1012) bytes. To reduce confusion,
we now use the term tebibyte (TiB) for 240 bytes, defining terabyte (TB)
to mean 1012 bytes. The figure below shows the full range of decimal
and binary values and names.
,●● Systems software:
Answer: Software that provides services that are commonly useful,
including operating systems, compilers, loaders, and assemblers.
●● Operating system
Answer: Supervising program that manages the resources of a computer
for the benefit of the programs that run on that computer.
●● Compiler
Answer: A program that translates high-level language statements into
assembly language statements.
●● Binary digit
Answer: Also called a bit. One of the two numbers in base 2 (0 or 1) that
are the components of information.
●● Instruction
Answer: A command that computer hardware understands and obeys
●● Assembler
Answer: A program that translates a symbolic version of instructions
into the binary version.
, ●● Assembly language
Answer: A symbolic representation of machine instructions.
●● Machine language
Answer: A binary representation of machine instructions
●● High-level programming language
Answer: A portable language such as C, C++, Java, or Visual Basic that
is composed of words and algebraic notation that can be translated by a
compiler into assembly language.
●● Input device
Answer: A mechanism through which the computer is fed information,
such as a keyboard.
●● Output device
Answer: A mechanism that conveys the result of a computation to a user,
such as a display, or to another computer
●● Liquid crystal display:
Answer: A display technology using a thin layer of liquid polymers that
can be used to transmit or block light according to whether a charge is
applied.