Applying Computer Software
What is application software?
Programs designed to make users more productive and/or assist them with personal tasks
How is software distributed?
Packaged software, mass-produced
Custom software, performs functions specific to a
September 7, 2016
In ensuring cyber security, companies must keep their operation systems updated. It is
important to guarantee digital safety across the internet when youre sharing information wit
Intro to Computers
What is a computer?
o A computer is an electronic device, operating under the control of
instruction stored in its own memory.
o Collects data (input)-processing-produces information (output)
The components of a computer
o A computer co
Number bases of Computers
How do computers represent data?
Most computers are digital
Recognize only two discrete states: on or off
Use a binary system to recognize two states
Use number system with two unique digits: 0 and 1 called bits (short for binary
Overview of System Units
What is the system unit?
Case that contains electronic components of the computer used to process data
Sometimes called the chassis
What are common components inside the system unit?
What is a nonimpact printer?
Forms characters and graphics without striking paper
Inkjet printer sprays tiny drops of liquid ink onto paper
Prints in black and white or color on a variety of paper types
What is the resolution of a printer?
September 14, 2016
CMPS 310 Section 1
Chapter 2 Review
2.8 A company in the Netherlands that make navigation devices collect location data from the
devices to provide real-time services to its customers. It also provides anonymous statist
# Print sin/cos/tan for the "common" angles of 30, 45 & 90 degrees
# Remember, sometimes one of these trig functions is undefined
# print a couple of blank lines before the program begins
# asking for input
# ask the user for the radius of the pizza (in inches)
# compute the area of the pizza (in square inches)
radius = eval(input("Enter the radius of pizza: ")
How to Store From and On Computers
What is storage?
Holds data, instructions, and information for future use
Storage medium is physical material used for storage
Also called secondary storage
What is capacity?
Number of bytes (characters) a storag
Evolution and Beginnings of Internet
o The Internet is a worldwide collection of networks that links millions of
businesses, government agencies, educational institutions, and individuals.
Evolution of the internet
o The internet originated
What is computer literacy?
Current knowledge and understanding computers and their uses
Computers are everywhere
How is a computer defined?
Electronic device operating under the control of instructions stored in its own memory
Date/ Time Due:
CMPS - 002
Tuesday, January 24, 2017
Friday, January 27, 2017 - 11:55 pm
This program uses string and numeric input.
It also processes using
Computer Hardware Theft & Hardware Vandalism
Theft: act of stealing computer equipment
Cables sometimes used to lock equipment
Some notebook computers use passwords, possessed objects, and biometrics as security
Piracy: illegal duplication of copyrighted
Computer literacy- current knowledge and understanding of computers and their uses
Computer- electronic device operating under the control of instructions stored in its own
memory; accepts data, processes data into information, & produc
Computer Processors and Central Processing
What is the central processing unit (CPU)?
Interprets and carries out basic instructions that operate a computer
Control unit directs and coordinates operations in the computer
Arithmetic logic unit (ALU) perform
Computer Security Risk
Event of action that causes loss of or damage to computer system
Potentially damaging computer program
Speed and damage files
Can travel through emails
Protection from Macro Virus
Set macro security levels in applications th
# get user input
hometown = input("Enter a city name: ")
speed = eval(input("Enter the speed of a vehicle in mph: ")
hours = eval(input("Enter the hours the vehicle traveled: ")
# compute age in days
distance = speed * hours