WGU C773 TASK 1 COMPREHENSIVE
REVIEW PAPER WITH SOLVED QUESTIONS
◉ Information Technology Infrastructure Library (ITIL)
Answer: common set of best practices widely used by businesses
to give guidance to companies on how to use IT as a tool for
implementing change
◉ Pseudocode
Answer: an informal high-level description of the operating
principle of a computer program or other algorithm. Used for
human reading, rather than machine reading, and it can be used
to translate into any programming language.
◉ Input
Answer: components include devices that provide input into the
processing unit. These include peripherals, such as the keyboard,
mouse, microphone (audio input), sensors, and document or
visual scanners.
◉ Central Processing Unit (CPU)
Answer: the brain/microprocessor of the computer.
◉ Output
,Answer: Components include internal storage devices or
processes, as well as external peripherals such as monitor screens
(visual output), speakers (audio output), and printers (physical
output).
◉ system bus
Answer: connection between the CPU, memory, storage,
expansion slots, and other motherboard components
◉ primary storage
Answer: flash memory chips, such as shown below, plugged into
memory slots on the motherboard.
◉ Secondary storage
Answer: accessed only through a system's input/output bus and is
generally several orders of magnitude slower than primary
storage technologies
Removable media, such as magnetic floppy disks, optical discs
(CDs & DVDs), and USB flash drives
◉ Tertiary storage
Answer: consists of an automated robotic mechanism to mount
and dismount magnetic tape or optical discs.
◉ First and second-generation computer languages
,Answer: were specific to the computer manufacturer (1GL) or to a
specific processor or environment (2GL).
◉ Third generation computer languages (3GLs)
Answer: high-level programming languages such as FORTRAN,
COBOL, C, Java, C++, and C#
◉ Java
Answer: An open-standard software language used for client-
server internal applications.
◉ COBOL
Answer: The first computer language; developed in the 1950s;
still used today.
◉ Fourth generation computer languages (4GL)
Answer: software tools that help reduce the amount of procedural
knowledge that is needed about how computers operate and lets
end users create programs as needed; SQL is a 4GL.
◉ Structured Query Language (SQL)
Answer: A computing language that is used with relational
databases.
◉ Dynamic Random-Access Memory (DRAM)
, Answer: The main memory of a computer system; requires
constant refreshing.
◉ Static Random-Access Memory (SRAM)
Answer: Retains memory for as long as power is being supplied;
does not need to be constantly refreshed; used to access the most
frequently used data, as it is faster.
◉ Horizontal Application
Answer: Software that provides solutions based upon the
common needs of many businesses.
◉ Vertical Application
Answer: Software that designed for a specific business.
◉ Software
Answer: Provides instructions to computers to perform tasks.
◉ Low-Level Programming Language
Answer: Basic programming languages that used machine
language instruction; they are specific to the hardware and lack
portability.
◉ Dumb Terminal/Thin Client
REVIEW PAPER WITH SOLVED QUESTIONS
◉ Information Technology Infrastructure Library (ITIL)
Answer: common set of best practices widely used by businesses
to give guidance to companies on how to use IT as a tool for
implementing change
◉ Pseudocode
Answer: an informal high-level description of the operating
principle of a computer program or other algorithm. Used for
human reading, rather than machine reading, and it can be used
to translate into any programming language.
◉ Input
Answer: components include devices that provide input into the
processing unit. These include peripherals, such as the keyboard,
mouse, microphone (audio input), sensors, and document or
visual scanners.
◉ Central Processing Unit (CPU)
Answer: the brain/microprocessor of the computer.
◉ Output
,Answer: Components include internal storage devices or
processes, as well as external peripherals such as monitor screens
(visual output), speakers (audio output), and printers (physical
output).
◉ system bus
Answer: connection between the CPU, memory, storage,
expansion slots, and other motherboard components
◉ primary storage
Answer: flash memory chips, such as shown below, plugged into
memory slots on the motherboard.
◉ Secondary storage
Answer: accessed only through a system's input/output bus and is
generally several orders of magnitude slower than primary
storage technologies
Removable media, such as magnetic floppy disks, optical discs
(CDs & DVDs), and USB flash drives
◉ Tertiary storage
Answer: consists of an automated robotic mechanism to mount
and dismount magnetic tape or optical discs.
◉ First and second-generation computer languages
,Answer: were specific to the computer manufacturer (1GL) or to a
specific processor or environment (2GL).
◉ Third generation computer languages (3GLs)
Answer: high-level programming languages such as FORTRAN,
COBOL, C, Java, C++, and C#
◉ Java
Answer: An open-standard software language used for client-
server internal applications.
◉ COBOL
Answer: The first computer language; developed in the 1950s;
still used today.
◉ Fourth generation computer languages (4GL)
Answer: software tools that help reduce the amount of procedural
knowledge that is needed about how computers operate and lets
end users create programs as needed; SQL is a 4GL.
◉ Structured Query Language (SQL)
Answer: A computing language that is used with relational
databases.
◉ Dynamic Random-Access Memory (DRAM)
, Answer: The main memory of a computer system; requires
constant refreshing.
◉ Static Random-Access Memory (SRAM)
Answer: Retains memory for as long as power is being supplied;
does not need to be constantly refreshed; used to access the most
frequently used data, as it is faster.
◉ Horizontal Application
Answer: Software that provides solutions based upon the
common needs of many businesses.
◉ Vertical Application
Answer: Software that designed for a specific business.
◉ Software
Answer: Provides instructions to computers to perform tasks.
◉ Low-Level Programming Language
Answer: Basic programming languages that used machine
language instruction; they are specific to the hardware and lack
portability.
◉ Dumb Terminal/Thin Client
