Final Exam Flashcards
Who was the first programmer ever
Ada King
Who proposed the idea of a programmable computer
Charles Babbage
Who invented the first compiler because they were tired of generating machine code by hand
Grace Hopper
Who designed the enigma machine during WW2 breaking the enigma code and proposed the notion of computer intelligence
Alan Turing
Earliest computers were used for math “computation” like the ______
abacus
What is a transistor
a small device that allowed to broad control of electrical signals is considered THE MOST important invention of the 20th century
who created the first graphical user interface (engaging screens on computers, not just text)
Xerox
what is Moore’s Law?
every 18th months, you can double the number of transistors on an integrated circuit (cost effective)
The internet is truly a loose confederation of data communication networks
http://cs.brown.edu - what does http represent?
Indication of what security measures are used on the website
http://cs.brown.edu - what does cs.brown.edu represent
Domain name
CPUs
at the heart of a computer: fetch -> decode -> executes instructions in a sequence
GUI
graphical user interface
what are the two parts computer storage is broken into?
RAM and ROM
what does RAM stand for?
random access memory
ROM
read only memory
remider:
When you power off/close ur computer, RAM memory gets CLEARED
Non volatile memory maintains its state
input/output (I/O) is the _____ of data and information between a user and the computer
exchange
____ is the number system most computer architecture is built on
Binary
Graphics, like images, are made up of thousands of tiny colored
____
_______ refers to the capacity of detail contained in an image, message or symbols
resolution
legality of computing: authentication answers what?
“who am i?”
concept of security: is it ever possible for something to be 100% secure?
No. Fuck no.
DDOS attacks
Cripple domains by flooding then with SO many requests that they become unusable. System gets overloaded
