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Diploma in Higher Education Studies

What is a computer system?

HES 213 · Introduction to Computer Science — Week 1 of 16

CourseHES 213
Week1 of 16
SemesterII
TutorOnline in the course chat

This week’s topics

What is a computer system?

  1. Input, process, output and storage
  2. Computers around us

What you will be able to do

  • 1.1 Describe the role of hardware and software components.

Activity

Identify the input, process, output and storage of five devices.

Study materials

Further resources

  • Workplace Software and Skills, 1.2: The information processing cycle · PDF · OpenStax Workplace Software and Skills (2023), 1.2 on input, processing, output and storage, p. 29 · for registered students
  • Workplace Software and Skills, 1.1: Computing from Inception to Today · PDF · OpenStax Workplace Software and Skills (2023), 1.1: computers around us at work and at home, pp. 8–26 · for registered students
  • Introduction to Computer Science, 1.2: Computer Science across the Disciplines · PDF · OpenStax Introduction to Computer Science (2024), 1.2: computer systems in different fields, pp. 20–24 · for registered students
  • Misconceptions about computer science · Open-access article · Denning et al. (2017), Communications of the ACM. Short column correcting common misconceptions about what computing is. · for registered students
Materials marked “for registered students” open in the student portal, which is set up as soon as you receive final acceptance.
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Course plan
  • Week 1: What is a computer system?
  • Week 2: Hardware: the parts of a computer
  • Week 3: Software: system and application software
  • Week 4: The CPU and the fetch-execute cycle
  • Week 5: Memory: RAM, ROM and cache
  • Week 6: What an operating system does
  • Week 7: Comparing operating systems
  • Midterm: Midterm evaluation
  • Week 9: Bits and bytes: units of storage
  • Week 10: Storing text: ASCII and Unicode
  • Week 11: Storing images: pixels and colour depth
  • Week 12: Storing sound: sampling
  • Week 13: Storage devices
  • Week 14: Choosing a computer for a job
  • Week 15: Review and coursework completion
  • Final: Final assessment and submission
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