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COMM 226 EXAM REVIEW STUDY GUIDE LATEST UPDATED.
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COMM 226 EXAM REVIEW STUDY GUIDE LATEST UPDATED.
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COMM 226 EXAM REVIEW STUDY GUIDE LATEST UPDATED.1. computer Infor- 1. Hardware
mation Systems 2. Software
6 components 3. Data
4. Procedures
5. People
6. Network
2. business tech- - Office automation System (OAS)
nology and sys- - Management information System (MIS)
tems - Decision Support System (DSS)
- Expert System
- Supply Chain Management System (SCMS)
- Inter-organizational system (IOS)
- Strategic Information System (SIS)
- Logistic information system (LIS)
- Financial Information System (FIS)
- Human resource information System (HRIS)
3. Components of - Timely
Data - Relevant
- Accurate
- Cost (can be expensive)
- Sufficient
4. Transactional Information System that collects, stores, modifies and re-
Processing trieves data transactions of an enterprise
System (TPS)
5. 4 Main functions Input: text, point, image, audiovisual, voice
of a computer Processing: CPU
Output: Screen type, printers, etc
Storage: mechanical hard drive (HDD), Solid State drives
(SSD), flash memory devices, optical drives
6. ROM vs. RAM ROM: Read Only Memory
- non-volatile
- vital function
RAM: random access memory
- Volatile
1/8
, COMM 226 EXAM REVIEW STUDY GUIDE LATEST UPDATED.
- Adding ram lets you do more things
- Daily activities
7. Sizes of mea- 1 bit is 8 BYTEs
sures of comput- - kilobyte (1024 BYTES)
er data - megabyte (1024 kilobytes)
- Gigabyte (1024 megabytes)
- Terabyte (1024 gigabytes)
- Petabyte (1024 terabytes)
- Exabyte (1024 petabyte)
- Zettabyte (1024 zettabytes)
8. Moore's law Number of transistors per square inch on electronic chips
is roughly doubling every 18 months (2 years)
- increases computer speed
- mobile platforms and internet access is growing world-
wide
- data storage and data communication costs virtually 0$
- Routine tasks can be outsourced cheaply
9. Operating Sys- Operating systems: control's the computer's resources,
tem (OS) and runs the device (iOS, Windows)
Application Soft- Application Software: Allows users to perform specific
ware tasks (facebook, messenger)
- application systems are made to run on certain types of
operating systems
- operating systems are made to run on certain types of
hardware
10. Operating sys- 1. Manages computer's hardware
tem functions 2. middle man between CPU and application software
3. manages schedules and coordinates tasks
4. Provides user interface
11. The evolvement 1. Stand-alone mainframes
of cloud comput- 2. Mainframes with dumb terminals
ing 3. Stand-alone personal computers (1970's)
4. local area networks
5. enterprise computing
6. cloud computing and mobile tech
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