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C182 OA Study guide (GSC1) – (Questions and Answers)
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C182 OA Study guide (GSC1) – (Questions and Answers)
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C182 OA Study guide (GSC1) –(Questions and Answers)
DIKW Hierarchy - -Data, Information, Knowledge, Wisdom
-Information Technology (IT) - -Describes the technology infrastructure that
may support information systems, although Information Technology could
also support many other types of systems. IT includes hardware, software,
networks, and databases that work together to allow an organization to
manage data and information.
-Protocol - -Set of rules established to govern how people behave and
interact with each other.
-A computer performs 4 operations - -IPOS (Input, Processing, Output,
Storage cycle
-Hardware - -The physical components of a computer.
-Software - -the programs and other operating information used by a
computer.
-Network - -A collection of computers and resources connected by various
media so they can communicate with each other.
-Users - -The people who use the computer system
-The System Unit - -Contains various components that enable the PC
system to run programs and complete other important functions.
-Memory Types - -Short term and Long term
-Dynamic RAM - -Typically called main memory
-Static RAM - -Cache memory and registers
-Read-Only Memory (ROM) - -Retains contents indefinitely
-Zuse Z3 - -1941, German, Binary floating point, Electromechanical,
Programmable
-Atanasoff-Berry - -1942, US, Binary, Electronic, Nonprogrammable
-Colossus Mark 1 - -1944, UK, Binary, Electronic, Programmable
, -Harvard Mark 1 - -1944, US, Decimal, Electromechanical, Programmable
-Colossus Mark 2 - -1944, UK, Binary, Electronic, Programmable
-Zuse - -1945, German, Binary Floating Point, Electromechanical,
Programmable
-Machine Language - -Binary code made up of 0s and 1s; usually this is data
converted from a high-level language by a compiler. Often used as a
synonym for low-level programming language. (0000 1001 0110 0100 1101
1111 1010 0011)
-Assembly Language - -Programming language that has the same structure
and set of commands as machine languages but allows programmers to use
symbolic representations of numeric machine code. (Move.1 #$2000030c,
d0 ; Initialize DACR0)
-High Level Language (HLL) - -Function get_all_factors(number)
-Structured Programming - -Statements known as GOTOs were used in a
large number of early languages. The GOTO statement allowed the
programmer to transfer control from any location in a program to anywhere
else in the program.
-Compiler - -Requires that the components of the software all be defined
before compilation can begin
-Interpreted Language - -Runs inside of a special environment called the
interpreter. The interpreter then converts that command to machine
language and executes it.
-Scripting Languages - -Javascript, ASP, JSP, PHP, Perl, Tcl and Phyton
-Bandwidth - -Transfer rate permissible over the media, described as some
number of bits per second (bps)
-Network hub - -A device that connects multiple computers into a network.
-Network Switch - -More functional connection than a hub. Its purpose is to
only send transmissions to a specific, intended computer.
-Router - -A device that connects multiple networks together; routes
packets to their next location in order to efficiently reach their destination.
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