[CIS 0935] - Midterm Exam Guide - Everything you need to know! (12 pages long)

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CIS 0935
MIDTERM EXAM
STUDY GUIDE
Thursday, September 1, 2016
Cyberspace & Security
Notes 1
-Digital Technology and electronics
enables us to manipulate all types of info as digits (1s and 0s)
why? because we can store and manage the info efficiently and effectively, then
use it creatively as we need it
Binary System - 0s and 1s
!1
PROCESSING
-CPU
-control unit
-ALU
INPUT
keyboard
OUTPUT
MEMORY
-Primary
Storage
Volatile
Communications
Network
Internet
Command storage
flash drive
BIT - binary digits
-we are on the base 10 system
-goes from 0 to 9
-theres 10^0 all the way up to 10^9
-10^0 = 1, 10^9 = 1,000,000,000
-there are a number of bases, including base 2
-ASCII - 8 bit
-all of the characters on the keyboard are represented by ASCII
-in ASCII, for example, A = 65. so we only need 2^6 and 2^1 (which adds up as 64 + 1 = 65)
-there are 256 unique combinations of 0 and 1 which can represent the letters on the keyboard
Cyber Security is a growing and ever-changing field
-Digital Literacy
-it has become a requirement for most careers
-today DIGITAL LITERACY is closely aligned with financial opportunity and independence
Computer
-A digital electronics device
-it combines hardware and software to accept the input of data. It will process and store the data to
produce useful output. In today’s world, it can be represented by a variety of devices
-Computers have transformed the world, bringing some good and some bad
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