08/22/18
What is IS? What is IT?
● The Five Component Framework
a. Hardware
■ Computer Side
■ Actors
b. Software
■ Computer Side
■ Instructions
c. Data
■ Human Side
■ Bridge between the human and computer side
d. Procedures
■ Human Side
■ Instructions
■ We create procedures to standardize steps to promote the efficient way of
doing things
e. People
■ Human Side
■ Actors
● Automation moves work from the human side to the computer side
a. A big problem that arises during the process of automation is individual
● The Differences Between IT and IS
a. Can buy/lease hardware, software licences, databases and, sometimes,
predesigned procedures. YOU CAN’T BUY AN IS
b. IS = IT + Procedures + People
● Binary System (we’ll come back to this)
a. Why is 100 = 4
b. What is 11111111?
Tech Startup Project
● A realistic, fundable master plan
● Applying course topics
● Business starts in January 1, 2019
● Elevator pitch
08/24/2018
CIS 235 Notes
Computer Systems
● Computer systems
a. Hardware
■ The physical components that make up a computer
■ Graphics cards, CPUs, Ram, etc.
b. Software
■ The non-physical components that make up the computer
■ Operating systems, programs, etc.
c. Firmware
■ Hardcoded into the system
■ Not typically changed
● How do you know that something is a computer?
a. A mechanical device that is able to process information
b. “Processes an input into something else”
● What is a computer system?
a. It is the interaction between all the different aspects of a computer - from
hardware, software, and firmware.
b. Computer Elements
■ Input
■ Processor
● CPU coordinates operations
● Arithmetic-Logic Unit (ALU)
● Registers (Fast volatile memory)
■ Primary storage - main memory (ram[or is it rom?]) - volatile
■ Secondary storage (Hard Drive) - Persistent
■ Communication systems *Buses”
■ Output
● Software
a. Systems software
■ OS
■ Bios
b. Application software
■ Apps
● Thin vs. Thick clients
a. Determined by the amount of resources an application uses
b. Thin client
■ Needs to be connected to something else
c. Thick client
■ Has everything necessary to function already on board.
● Software acquisition
a. Develop yourself
b. License
