THE COMPUTER A computer is an electronic device that can accept data and process data in order to get the required information. The computer receives data through the input device, and it processes the data to generate 1information which it produces and displays through the output device. PARTS OF THE COMPUTER A computer has…
Human ware refers to the human beings that use the system. In other words, the users of the computer system are the end – users and professional alike. REASONS FOR CARING FOR COMPUTER USERS Reduce fatigue Using the computer for a long time causes fatigues, tiredness, and other forms of human unrest. This situation, if…
Human ware refers to the human beings that use the system. In other words, the users of the computer system are the end – users and professional alike. CARING FOR COMPUTER USERS Sitting position/posture. Using anti – glare protector. Maintaining dust free. Replace faulty components. Ventilation Enumerate ways of caring for computer users. Demonstrate correct…
Hardware is the physical computer equipment that we can see and touch. They include: The input devices such as a mouse and keyboard, the processing device like system unit. The output device like printers and video display units (VDU). Other hardware includes speaker, scanner, microphone and joystick. STEPS FOR CARING FOR COMPUTER HARDWARE Position…
AREAS OF COMPUTER MISUSE There are however many areas where computer has been used for wrong or negative things. These are including: Piracy Computer software is written by computer programmers for sale. However, a lot of users simply get copies of software from friends and colleagues for use on their system without paying for it….
There are many careers opportunities in computer, these include: Teacher: To teach at primary, secondary and tertiary levels. Computer Programming: To write computer programs. Computer Engineering: To assemble and repairs computers. Computer Analysts: To determine programs inside computers. Hardware Maintenance and Support: To service computers. Business Analyst: Offer computer solutions…
Computer and computer applications are used in various aspects of human activity. In fact, most professions have application software written specifically for them to solve certain tasks. Architects have the AUTOCAD software that aid in the design of building and other structures. SMALL SCALE APPLICATION OF COMPUTER IN THE SOCIETY Digital Wrist watches replacing clock. Word Processing replacing…
DRAWING A LINE To draw a line: Click the line tool. To draw the line, drag the pointer. Draw a perfectly horizontal, vertical, or diagonal line. DRAWING A RECTANGLE To draw a rectangle Click on the rectangle tool. Drag from the upper end to the lower end of the page. Go back to the…
The mouse is that part of a computer which looks like a live mouse. The mouse tells the computer what to do by controlling the characters of the keyboard. A mouse has two buttons on it. It can also be clicked once or twice. Presentation Step I: Teacher revises the previous topic Step II: Teacher…
We can ask the computer to do many things by working on the keyboard. A keyboard contains letters of the alphabet, A– Z and numbers 0–9. It also contains function keys F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11 and F12. Signs like the comma and full stop are on the keyboard….
The monitor shows on its screen what is typed into the computer. It also shows what is stored in the computer when needed. The monitor looks like a television set. It is also called the visual display unit (VDU). There are two types of monitor: The monochrome monitor: A monochrome monitor shows black and white…
Many objects function like the computer. We make use of some of these objects in our daily activities. They are electronic devices. Some of these devices and their uses are: Calculator: A calculator is a machine used for solving arithmetical problems. Cell phone: A cell phone is used for making and receiving telephone calls. It…
A digital wrist watch is used for keeping time. It tells time in seconds, minutes and hours. A digital wrist watch also shows the date. Parts of a digital wristwatch Case: The case holds the inner working parts of the watch. Lugs: The lugs are where the case of the watch connects to the strap…
An organizer is used for keeping personal records, data or information. You can use it for keeping the birthdays of members of your family and those of your friends. Uses of organizer Assist students in organizing information. For storing information and data For keeping memories Assist teachers in planning lesson Illustrate the school’s goals or…
A smartphone is a cell phone that allows you to do more than make phone calls and send text messages. Smartphones can browse the Internet and run software programs like a computer. Smartphones use a touch screen to allow users to interact with them. Parts of a smart phone The following are parts of a…
FLOPPY DRIVES Named for the media disks that could be pulled out and that would ‘flop’ when carried. These disks are designed to allow users to store data to a disk, remove it and carry the data elsewhere. These typically come in one of two formats in the United States: 3.5″ @1.44Mbytes and 5.25″ at…
Storage devices are parts of the computer system in which we store information. The two kinds of storage devices are the Main memory storage devices, and Backing storage devices. The main memory storage devices a) Random Access Memory (RAM) RAM stores data, programming languages band applications software only. This storage is only for some time….
Hard disk drives Advantages Large capacity Faster than optical disks like DVD’S Persistent storage Easily replaced and upgraded Disadvantages of Hard Disj Drives Relies on moving parts Disk surface can be damaged Heavy power consumption Noisy Slower read and write speed than RAM Strategies & Activities: Step: Teacher revises the previous topic. Step…
A hard disk drive (HDD) is a non-volatile computer storage device containing magnetic disks or platters rotating at high speeds. It is a secondary storage device used to store data permanently, random access memory (RAM) being the primary memory device. DIFFERENCE BETWEEN FLOPPY DISK AND HARD DISK A floppy disk is a circular piece…
MEANING OF DISK DRIVE A drive is a location (medium) that is capable of storing and reading information that is not easily removed, like a disk or disc A disk drive is a device that reads and/or writes data to a disk. The most common type of disk drive is a hard drive (or “hard…