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CS 330 Management Information Systems MIDTERM 1 Ch. 1 & 2 University of Waterloo
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CS 330 Management Information Systems MIDTERM 1 Ch. 1 & 2 University of Waterloo
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CS 330 Management Information Systems MIDTERM 1Ch. 1 & 2 University of Waterloo
Why is understanding IT important? - For knowing your options
Define: IT infrastructure - The shared technology resources that provide the platform for the
firm's information system applications (includes hardware, software and services like training
and consulting)
List the components of IT infrastructure - 1. Internet platforms
2. Computer hardware platforms
3. Operating systems platforms
4. Enterprise software applications
5. Networking/telecommunications
6. Consultants and system integrators
7. Data management and storage
What are different types of capacity? - Bit, byte, KB, MB, GB
What are different types of clock speed? - MHz, GHz
What are different types of chip density? - 45, 32, 22, 14 nm technology
,What are different types of word lengths? - 32 bit, 64 bit
Define: Processor (a.k.a. CPU) - Where symbols, characters, and numbers are manipulated
Brain of the computer
Integrates arithmetic, logic, and control circuits on a single chip
Typically have multiple cores (2 or 4 is common)
Define: Primary storage - Where data and program instructions are stored temporarily during
processing
eg. Registers, cache, RAM
Define: Secondary storage - Stores data and programs even when the computer is turned off
eg. Magnetic disks (HD), optical disks (DVDs), flash drives, solid state drives (SSD)
Define: Input devices - Convert data and instructions from the outside world into electronic
form
eg. Keyboard, mouse, touchpad, scanner
, Define: Output devices - Converts electronic data produced by the computer into a form
understood by humans or the outside world
eg. Printer, speaker, monitor
Define: Communication devices - Provide connections between the computer and
communications networks
eg. Network interface card (ethernet or Wifi), bluetooth
Define: Multicore processors - Each core acts like a separate processor with some individual
memory, some shared memory and shared access to the rest of the computer
Define: Processing power - Typically reported as clock speed (frequency)
What is processing power based on? - - The number of bits that can be processed at one time
(word length)
- The amount of data that can be moved between the processor, primary storage, and other
devices (data bus width and speed)
- Clock speed
Can 32-bit applications run on 64-bit applications? - Yes, but they can't the other way around
Is 64-bit faster? - Yes, but it depends on:
- Whether the computation involves large numbers
- Whether the application is designed to take advantage of 64-bit architecture
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