Define computer
Electronic machine or device that accepts and processes data to produce information.
identify types of computers
Mainframe, Minicomputer, Microcomputers including laptop, desktop, tablet palmtop and other current devices.
discuss the advantages and disadvantages of computer usage
adv- speed,accuracy,storage
dis- health issues, cost,cybercrimes
distinguish between operating system software and application software
Operating System Software
Programmes that co-ordinate the activities among computer devices.
Application Software Programmes
programs designed to perform specific tasks for end-users, such as writing documents, browsing the internet, or playing games.
describe ways of caring for computers and peripherals in the working environment
> avoid eating or drinking near equipment
Handle with care
Keep the environment clean
Manage files and programs
explain the use of the various input devices;
Keyboard-Entering text, numbers, and commands through keystrokes.
Mouse-Moving the cursor, selecting items, and navigating the graphical user interface.
Microphone-Capturing audio input, such as voice commands or recordings.
Scanner-Converting physical documents and images into a digital format.
Touchscreen-Allowing users to interact directly with the screen by touching it with a finger or stylus.
Optical Character Recognition (OCR) reader-Reading and converting printed text into machine-readable digital text.
discuss health and safety factors
associated with computer use.
Health
Eye strain: Prolonged screen use can cause visual fatigue, including dry eyes, blurred vision, and headaches.
Insufficient Light: A workspace that is too dim can cause users to squint or lean forward.
Lack of Support: Chairs without adequate lumbar (lower back) support can cause slouching,
Organ Function: Poor posture can even affect the position and function of internal organs
Safety
Location of Extension Cords: Cords and cables that run across the floor, through doorways, or over sharp edges create significant tripping hazards
Regular Breaks:prolonged static sitting is not healthy. Users should take frequent, short breaks
