Introduction to Basic Computers – PST04107 Basic Computer Applications
NTA Level 4 • Semester 1 • PST04107 Introduction to Basic Computers Basic Computer Applications • Source Session/Topic 1 Full source-text version: all educational wording from the extracted learning source is retained; only presenter/tutor metadata and web-layout noise are removed, while formatting is improved for readability. Session 1: Introduction to Basic Computers Total Session Time: 60minutes +120 minutes Practical Prerequisites None Learning Tasks By the end of this session students are expected to be able to: Define the Term ‘Computer’ Classify Types of Computers Explain the History of the Personal Computers Explain the Uses of Computer Identify Computer Parts and Connect Parts Explain Keyboard Layout Perform Turn on and Shut Down of Computer Resources Needed Flip charts, marker pens, and masking tape Black/white board and chalk/whiteboard markers Computer LCD projector SESSION OVERVIEW Step Time Activity/ Method Content 1 05 minutes Presentation Presentation of Session Title and Learning Tasks 2 10 minutes Presentation, Brainstorming Definition of Computer 3 20 minutes Presentation Classification of Types of Computers 4 15 minutes Presentation History of Personal Computers 5 10 minutes Presentation Buzzing Uses of Computer 6 45 minutes Presentation Demonstration Computer Parts and Connection 7 45 minutes Presentation Keyboard Layout 8 20 minutes Presentation Turn on and Shut Down Computer 9 05 minutes Presentation Key Points 10 05 minutes Presentation Evaluation SESSION CONTENT Step 1: Presentation of Session Title and Learning Tasks (5 minutes) READ or ASK student to read the learning objectives and clarify. ASK students if they have any questions before continuing. Step 2: Definition of Computer (10 minutes) Activity: Brainstorming (5 minutes) Ask students to brainstorm on the following question: What is the term ‘computer’ means? ALLOW few students to respond WRITE their responses on the flip chart/ board CLARIFY and SUMMARISE by using the content below Meaning of Computer Computer An electronic device that can follow instruction to accept input, process that input and produce information It can also simply be defined as an electronic machine that takes data, stores it, processes that data and produces information. (Data can be defined as unprocessed facts and processing data gives information) The Two Principal Characteristics of a Computer Responds to a specific set of instructions in a well-defined manner Can execute a pre-recorded list of instructions (a program) Step 3: Classification of Types of Computers (20 minutes) Computers can be classified by using Size and Power as follows: Workstation computers A powerful, single-user computer A workstation is like a personal computer, but it has a more powerful microprocessor and a higher-quality monitor Minicomputer A multi-user computer capable of supporting from 10 to hundreds of users simultaneously Mainframe computer A powerful multi-user computer capable of supporting many hundreds or thousands of users simultaneously Supercomputer An extremely fast computer that can perform hundreds of millions of instructions per second Personal Computer Personal computer (PC) is a small, relatively inexpensive computer designed for an individual user classified by size and portability Desktop Computers Laptops or notebooks Personal Digital Assistants Portable Computers Tablet Computers Wearable Computers Cell Phones All are based on the microprocessor technology that enables manufacturers to put an entire Central Processing Unit (CPU) on one chip The principal characteristics of personal computers are that they are single-user systems and are based on microprocessors Although personal computers are designed as single-user systems, it is common to link them together to form a network In terms of power, there is great variety At the high end, the distinction between personal computers and workstations has faded High-end models of the Macintosh and PC offer the same computing power and graphics capability as low-end workstations by Sun Microsystems, Hewlett-Packard, and DEC Step 4: History of Personal Computers (15 minutes) Personal computers first appeared in the late 1970s One of the first and most popular personal computers was the Apple II During the late 1970s and early 1980s, new models and competing operating systems seemed to appear constantly In 1981 a new standard was established in the micro-computer industry with the debut of the IBM PC The IBM PC quickly became the personal computer of choice, and most other personal computer manufacturers fell by the wayside In order to survive, other companies adjusted to IBM's dominance by building IBM clones, computers that were internally almost the same as the IBM PC, but that cost less Because IBM clones used the same microprocessors as IBM PCs, they were capable of running the same software Since then, hundreds of millions of PC-compatible systems have been sold as the original PC has grown into an enormous family of computers More software has been written for this computer family than for any other system on the market Apple computer did survive and to date it remains a major player in the personal computer marketplace Today, the world of personal computers is basically divided between Apple Macintoshes and PCs Step 5: Uses of Computer (10 minutes) Activity: Buzzing (5 minutes) ASK students to pair up and buzz on the following questions for 2 minutes What types of personal computers have you used before? What did you use it for? ALLOW few pairs to respond and let other pairs to add on points which are not mentioned WRITE their response on the flip chart/board CLARIFY and SUMMARIZE by using the content below There are two uses of computer, these are: General purpose computer is design to solve wide variety of problems. Examples of general purpose computer are School computers Hospital computers Office computers Special purpose computer is designed for particular job only to solve problem of restricted nature. Examples of special purpose computer are Petroleum pumps Traffic lights Programmable pocket calculator Weapons guidance system Step 6: Computer Parts and Connection (45 minutes) Computer parts include the following: Keyboard Mouse Monitor(Screen) Central Processing Unit (CPU) System unit Random Access Memory(RAM) Connecting Computer Parts Connecting a computer includes the following steps: Connect monitor and system unit together. Connect keyboard. Connect mouse Connect computer to electrical power. Activity: Demonstration (30 minutes) DIVIDE students in small manageable