Exam (elaborations)
Cosc 101 final exam review questions and answers
- Course
- Institution
Cosc 101 final exam review questions and answers
[Show more]
Content preview
Cosc 101 final exam review questionsand answers
methods - Answer -contain blocks of executable code
programming language - Answer -tool for solving problems
John Von Neumann - Answer --introduced the concept of stored programs
-wrote a paper discussing storage
Variable - Answer -named storage location that holds a data value
jacquard's loom - Answer -1st programmable device
pseudocode - Answer -design and represent algorithms
if x=0, otherwise... - Answer -conditional statement
"Print n" - Answer -sequential statement
"Repeat the following 5 operations until i<100..." - Answer -iterative loop statement
computer science - Answer -The study of algorithms, taking into consideration their
hardware, linguistics and mathematical realizations to solve a problem.
characteristics of a good algorithm - Answer --elegance
-efficiency
-maintainability
-understandability
-correctness
lossy compression - Answer -compresses data in a way that doesn't guarantee that all
information in original data can be fully/completely restored
lossless compression - Answer -no information is lost in compression & data can be
exactly reproduced
system commands - Answer -user instructions about what the computer should do
Graphical User Interface (GUI) - Answer -Visual interface to the virtual machine
including operating system and system programs and user programs
, Command Line Interface (CLI) - Answer -way of interacting with Operating Systems with
text
control unit - Answer -keeps track of what step a program is at during execution
algorithm - Answer -A step-by-step procedure that contains unambiguous instructions
that when carried out solves a problem correctly and then halts in a finite amount of time
!= - Answer -not equal to
== - Answer -compares two values (equal)
<= - Answer -less than or equal to
>= - Answer -greater than or equal to
Sequential operation - Answer -An algorithmic operation that carries out a single task
and then moves on to the next operation in sequence.
computing agent - Answer -The entity (machine, robot, person, or thing) that executes
the steps of an algorithm.
an algorithm is useless when: - Answer -it takes too long to execute
ENIAC - Answer --1st fully electronic general-purpose programmable computer
-Electronic Numerical Integrator and Computer
output operations - Answer -Send results from the computing agent to the outside world.
control operations - Answer --Conditional and iterative
- Allow us to alter the normal sequential flow of control in an algorithm
loop - Answer -repetition of a block of instructions
An algorithm can fall into an infinite loop when - Answer -the continuation condition of
the loop never becomes false
library - Answer -a collection of useful, prewritten algorithms.
FLOPS (Floating operations per second) - Answer -how speed of computer is measured
Memory Address Register (MAR) - Answer -keeps track of what is free & what is used
Memory Data Register (MDR) - Answer -Keeps track of where programs/OP codes
reside
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller millyphilip. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79271 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now