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Title: Management Information Systems - Ch. 1, 2, TG1, TG2
Description: These are notes for the course Management Information Systems (MIS) 301. This is an introductory college level course which teaches the basics about information systems. At Iowa State it is a required business course for all majors and is aimed at teaching all business students the fundamentals of MIS.
Description: These are notes for the course Management Information Systems (MIS) 301. This is an introductory college level course which teaches the basics about information systems. At Iowa State it is a required business course for all majors and is aimed at teaching all business students the fundamentals of MIS.
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MIS 301 – Exam 1
TG1
Classifications of computers
• Supercomputers
• Mainframe Computer (Big Iron)
• Minicomputers (midrange computer)
• Workstations:
Servers
• Midrange category of computers
• Smaller and less powerful then mainframes
The most common output trend is video display
CPU
•
•
•
Arithmetic-logic unit
Control unit
Register
(high speed storage area in the CPU)
IBM’s Sequoia – World’s fastest super computer
Computer Hardware Components
• Bit: Binary Digit
o 0 or 1
• Byte: A combination of eight bits
o Computer memory and storage capacity are measured in megabytes (MB), gigabytes (GB),
and terabytes (TB)
Measuring Storage Capacity
• Kilobytes (KB): one thousand bytes (2^10)
• Megabytes (MB): one million bytes (2^20)
• Gigabytes (GB): one billion bytes (2^30)
Random Access Memory (RAM) – Volatile and temporary storage
Primary Storage
• It is closely associated with the CPU
Read-Only Memory (ROM) – Nonvolatile providing permanent storage
• This is also called Firmware
BIOS – Basic Input/output System
• Is a system program
Secondary Storage
• Are not directly accessible by the CPU
• Most common Forms;
o Magnetic
o
o
Optical
Solid state – a
...
a
...
System Software – Programs that run the computer
a
...
System development programs
2
...
General-purpose application programs
b
...
Hardware
2
...
Application
Software Suites – Allow easy movement of information from one application to another
• Integrated software, a bundle of several Applications usually including
o Word Processing
o Database Management System
o Electronic Spreadsheet
o Presentations
Object Linking and Imbedding Technology (OLE)
• Software that allows users to easily copy elements from one document to another keeping the
connection or “LINK” between elements
Operating System
• Plays the role of “Traffic Cop” or the “Boss” of computer resources
• Most important system software
•
•
•
•
Coordinates:
o Peripherals
o Application software
o Users
Also used in embedded devices
Written in assembly language
Performs day to day operations
User Interface
• Resource Management
• Task Management
• File Management
• Utilities and other functions
Open Source Software
• Software that is freely available to anyone in a form that can be easily modified
Title: Management Information Systems - Ch. 1, 2, TG1, TG2
Description: These are notes for the course Management Information Systems (MIS) 301. This is an introductory college level course which teaches the basics about information systems. At Iowa State it is a required business course for all majors and is aimed at teaching all business students the fundamentals of MIS.
Description: These are notes for the course Management Information Systems (MIS) 301. This is an introductory college level course which teaches the basics about information systems. At Iowa State it is a required business course for all majors and is aimed at teaching all business students the fundamentals of MIS.