Educational Blog - Ajiboye Gbenga @ Sunlite Digital ALBESTA ACADEMY LEKKI

  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 digital resour

  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 disks, magnetic tapes e.t.c (ii) Inp

  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 keyboard, Mouse, Monitor, Printer, Scanner, DVD, CD, USB flash drive etc. c.  Input Devices :  

  Generation of Computer S Features/Characteristics Objective: At the end of the lesson, the students should be able to 1. List generation of computers 2. Describe the features of each generation INTRODUCTION These refer to the computer’s technical progress since the development of the first electronic computer. There are a total of five computer generations till date. They are: (i)                 First generation computers (1940-1959) (ii)               Second generation computers (1960-1965) (iii)             Third generation computers (1965-1970) (iv)             Fourth generation computers (1972-1990) (v)               Fifth  generation computers (1990 till date)   (i)                 First generation computers (1940-1959) (a)   They made use of vacuum tubes technology (b) They were large and slow (c)   They were unreliable (d) They generated a lot of heat (e) They consumed a lot of electricity. Examples are ENIAC, EDVAC, ABC, EDSAC. e.t.c (ii)             Second generation co

  LOGIC GATES/CIRCUITS 1  DEFINITION, TYPES, SYMBOLS AND USES DEFINITION OF LOGIC GATE A logic gate is the fundamental building block of digital integrated circuits. Most logic gate takes an input of two binary values, and output a single value of 1 or 0. Some circuits may have only a few logic gates, while others, such as microprocessors, may have millions of them. Logic gates are primarily implemented using diodes or transistors acting as electronic switches, but can also be constructed using vacuum tube, fluidic logic, optics, molecules or even mechanical elements. Logic circuit includes such devices as registers, arithmetic logic units, and computer memory, all the way up through complete microprocessors, which may contain more than 100 million gates.   Equation and truth table for each logic gate The truth table is the table that shows the possible combinations of variable values in the equation and the result (output) for each of the logic gates. For a two-input truth table, ther