Computer Studies·Operating systems · NSSCO 5.5
Operating systems, file management, peripheral control & utilities
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The operating system is the master program that runs every computer. In this lesson Miss Maria explains what an OS does, the three types of interface, how it manages your files and printers, the peripheral-control techniques it uses, and the utility software that keeps a machine healthy.
What you'll learn in this lesson
By the end you should be able to (NSSCO Computer Studies 5.5):
- Describe the role of an operating system
- Describe the use of the following operating system facilities: batch and real-time processing (payroll, online banking, stock control), multitasking, multi-user, multi-access, screen mirroring, network operating systems (servers), process-control operating systems
- Explain different types of interfaces such as: graphical user interface (GUI), command line, menu driven
- Explain the use of the following operating system tools to manage files: create, copy, move, delete and rename; organise and display files in directories and sub-directories (folders and sub-folders)
- Describe the management and control of peripherals using the following operating system features: interrupt, polling, spooling, handshaking, buffering
- Explain the purpose of the following types of utility software: disk formatting, hardware drivers, file compression, disk defragmenters, event viewers, performance viewers, virus checkers
- Discuss the verification of data integrity after data transfer process using: check sum, parity check
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