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 ....

 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...

  DATABASE 1 -DEFINITION, TERMINOLOGIES AND DATA ITEMS DEFINITION OF DATABASE 1. A database is a collection of data organized in a manner that allows access, retrieval and use of data. 2. A database is a collection of information that is organized so that it can easily be accessed, managed, and updated. Meaning and Definition of DBMS DBMS stands for DataBase Management System DataBase Management System is defined as an application software that manipulates the data in the database. Examples of DBMS Packages They include: (i) Dbase (ii) Rbase (Iii) MS Access (iv) Oracle (v) Paradox (vi) MYSQL Server (vii) SyBase (viii) FOXPRO (ix) IDMS (x) System 2000. Database Terminologies 1. Field:  Field is a single piece of information about an object. A field is also defined as a space that holds specific parts of data from a set or a record. Examples of fields are NAME, ADDRESS, QUANTITY, AGE, etc. 2. Record:  A record is a collection of fields. It is the collection of information a...

  COMPUTER PROFESSIONALS-(PEOPLE WARE/LIVE WARE) Definition,Fields, Qualities of a good Computer Professional and Computer Professional Bodies Definition of Computer Professionals Computer professionals are individuals that have obtained sufficient/formal education and training in the field of computers and earn their livelihood from their chosen profession. Computer Professionals are: 1. Data Administrator 2. System Analyst 3. Programmer 4. Network administrator 5. Website developer/designer/ administrator 6. Computer engineer 7. Computer hardware technician 8. Data Processing manager 9. Computer graphics designer/artist 10. Computer Operator 1. Data Administrator: Creates, updates and manages database. 2. System Analyst: Carries out feasibility studies on systems design. He also liaises between the user and the programmer. 3. Programmer : writes codes and instructions for the computer system. 4. Network administrator : Set up, oversee, and coordinate the smooth functioning...

  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...