Educational Blog - Ajiboye Gbenga @ Sunlite Digital ALBESTA ACADEMY LEKKI

 INPUT DEVICES  DEFINITION, EXAMPLES AND DESCRIPTION DEFINITION OF INPUT DEVICES Input device is any hardware component that allows a user to enter data and instructions into a computer.  Any peripheral used to provide data and control signals to a computer. Without any input devices, a computer would only be a display device and not allow users to interact with it. Before computer processing, data must be entered into the computer by an input device so that they can be translated into machine-readable form.  Some input devices include the following: 1. Keyboard 2. Mouse 3. Joy Stick 4. Light pen 5. Track Ball 6. Scanner 7. Graphic Tablet 8. Microphone 9. Magnetic Ink Card Reader (MICR) 10. Optical Character Reader (OCR) 11. Bar Code Reader  12. Optical Mark Reader (OMR),  13. Web cam 14. Touch Screen 15. Digital Camera 1. Keyboard : Thi s is  an input device used to enter characters and functions into the computer system by pressing buttons, or keys ....

  THE COMPUTER SYSTEM 1 -  COMPONENTS OF COMPUTER SYSTEM -  HARDWARE - SOFTWARE - PEOPLE WARE/LIVE WARE THE COMPUTER SYSTEM This is a set of electronic devices that consist of functional hardware and software that can be operated by trained user. COMPONENTS OF COMPUTER SYSTEM Components of computer system can be classified into (a) Hardware (b) Software and (c) People/Live/Human Ware (i) Hardware : This is  the physical parts or components of a computer that can be physically touched  such as monitor, keyboard, hard drive disk, mouse, CPU (graphic cards, sound cards, memory, motherboard and chips), etc.  The hardware also includes the following: (i) central processing unit- This is responsible for processing instructions in the computer system. It consists of:  (a) arithmetic and logic unit (ALU)- for calculations (b) Control unit (CU)- that controls the activities of the computer. (c) Memory/Storage Unit- for storage e.g CD, DVD, flash drives, hard di...

 DATA AND INFORMATION  MEANING, SOURCES, QUALITIES AND DIFFERENCES MEANING OF DATA  AND INFORMATION Data comes from the word “datum” i.e something given. It can be defined as a raw fact in which information is produced. Data is represented with characters like (A-Z, a-z, digits (0-9) or special characters (+, --, /, *, <,>, = e.t.c). Examples of data are students data on admission forms, survey data, data of citizens, students examination data e.t.c. INFORMATION This is known as processed data which is meaningful to the receiver. Information is organized data . SOURCES OF DATA AND INFORMATION 1.       The Internet 2.      Patient's Files at the hospital 3.       Printed Books 4.    Radio/television 5.  Students Performance in both test and examination QUALITIES OF A GOOD INFORMATION 1. Accuracy : It must be accurate to make decision 2. Meaningful : Must be able to be interpreted. 3. Timely : Must be com...

  COMPUTER HARDWARE -  CLASSIFICATION OF HARDWARE  SYSTEM UNIT - PERIPHERALS - INPUT- OUTPUT - STORAGE DEVICES Meaning of Computer Hardware These are the physical components of the computer system. They are the tangible parts that can be seen and touched . There are two major parts, namely: a.  The system unit  b.  The peripherals       c.  Input Devices      d. Output Devices      e. Storage Devices a. The System unit :  The system unit is the rectangular casing that houses (contains) several important components that controls the operation of the computer system such as the motherboard, CPU (Microprocessor), RAM, Sound card, video card, CD drive, Floppy disk drive etc. It also provides interface for connection of the peripherals. b. Peripherals :  These are the devices connected to the system unit for the purpose of input, output and storage operations. Examples of peripheral devices are ke...

  DIGITAL LITERACY- MEANING , CHARACTERISTICS, AND BENEFITS/USES Objective: At the end of the lesson, the students should be able to: Define digital literacy State the characteristics and benefits of digital literacy What is Digital Literacy? Digital literacy is the ability to effectively and critically navigate, evaluate and create information using a range of digital technology. Digital literacy is the knowledge, skills, and behaviors used in a broad range of digital devices such as smartphones, tablets, laptops and desktop PCs, all of which are seen as networks rather than computing devices.  Digital literacy research explores a wide variety of topics, including how people find, use, summaries, evaluate, create and communicate information while using digital technologies. A digital literate person can be described as a digital citizen. THE CHARACTERISTICS OF DIGITAL LITERACY 1. Ability to use digital tools to identify, manage, access, evaluate, integrate and analyze digit...