An operating system (OS) is system software that manages computer hardwaresoftware resources, and provides common services for computer programs.

Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor timemass storage, printing, and other resources.

For hardware functions such as input and output and memory allocation, the operating system acts as an intermediary between programs and the computer hardware,[1][2] although the application code is usually executed directly by the hardware and frequently makes system calls to an OS function or is interrupted by it. Operating systems are found on many devices that contain a computer – from cellular phones and video game consoles to web servers and supercomputers


This course is intended to equip the trainee with relevant knowledge, skills and attitudes in basic elements of mathematics to facilitate his/her understanding of computer systems.

Computer applications I is unit that covers all computer packages, it tests both the theory and practicals. 

This course is designed to introduce the trainee/learner to ICT, equipping him/her with the necessary knowledge, skills and attitudes to enable  him/her professionally work with ICT facilities