Computer Studies Scheme of Work for SS3 First Term

 

SCHEME OF WORK

WEEK 1 NETWORKING

WEEK 2 NETWORK TOPOLOGY, DEVICES AND INTERFACE

WEEK 3 CABLES AND CONNECTORS

WEEK 4 INTRODUCTION OF THE WORLD WIDE WEB

WEEK 5 &6 DATABASE & DATABASE ORGANISATION

WEEK 7&8 GRAPHIC INTRODUCTION TO COREL DRAW

WEEK 9&10 BASIC PROGRAMMING

Below are the 2022 complete SS3 First Term Computer Science Lesson Note 

 

First Term SS3 Computer Science Lesson

Week 1

Topic: Networking

Contents:

  • Definition of Networking
  • Types of Networking

Networking

Networking is the construction, design, and use of a network, including the physical (cabling, hub, bridge, switch, router, and so forth), the selection and use of telecommunication protocol and computer software for using and managing the network, and the establishment of operation policies and procedures related to the network.

A computer network can be defined as a collection of interconnected computers in such a way that they share resources. A computer system only referred to a group of computers and hardware components interconnected by communicating channels that allow sharing of resources and information. It is the practice of interfacing two or more computing devices with each other for the purpose of sharing data. Computer networks are built with a combination of hardware and software. Technically, If at least one process in one computer can send or receive data to/from at least one process residing on a remote computer, then two machines are said to be a network. To learn more, Click here.

Week 2

Topic: Network Topology, Devices and Interface

Network topology is the arrangement of the various elements (links, nodes, etc.) of a communication network. Essentially, it is the topological structure of a network and may be depicted physically or logically. A network consists of multiple computers connected using some type of interface, each having one or more interface devices such as a Network Interface Card (NIC) and/or a serial device for PPP networking. Each computer is supported by network software that provides the server or client functionality. The hardware used to transmit data across the network is called the media. It may include copper cable, fibre optic, or wireless transmission. The standard cabling used for the purposes of this document is 10Base-T category 5 ethernet cable. This is twisted copper cabling which appears at the surface to look similar to TV coaxial cable. It is terminated on each end by a connector that looks much like a phone connector. Its maximum segment length is 100 meters. To learn more, Click here.

Week 3

Topic: Network Cables and Connectors

Network Cable 

Cable is the medium through which information usually moves from one network device to another. There are several types of cable which are commonly used with LANs. In some cases, a network will utilize only one type of cable, other networks will use a variety of cable types. The type of cable chosen for a network is related to the network’s topology, protocol, and size. Understanding the characteristics of different types of cable and how they relate to other aspects of a network is necessary for the development of a successful network. To learn more, Click here.

Week 4

Topic: INTRODUCTION TO WORLD WIDE WEB

THE INTERNET 

The Internet is defined as a global electronic communication network. It is one of the largest networks that link trillions of computers all over the world. You can access this network via communication devices and media such as modems, cable, telephone lines and satellite.

The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite (TCP/IP) to link several billion devices worldwide. It is a network of networks that consists of millions of private, public, academic, business, and government networks of local to global scope, linked by a broad array of electronic, wireless, and optical networking technologies.

The internet offers many conveniences at your fingerprint. You can send messages to others, meet new friends, bank, invest, shop, fill prescriptions, file taxes, take online courses, play games, listen to music or watch a movie on the internet, the advantage of the internet is that you can use it from a computer anywhere in the world. To learn more, Click here.

Week 5 & 6

Topic: Database & Database Organisation

DATABASE

A database is a collection of information that is organized so that it can be easily accessed, managed and updated. It is an organized collection of data. It is a collection of schemas, tables, queries, reports, views, and other objects. Database designers typically organize the data to model aspects of reality in a way that supports processes requiring information, such as (for example) modelling the availability of rooms in hotels in a way that supports finding a hotel with vacancies. 

A database is a collection of information organized to provide efficient retrieval. The collected information could be in any number of formats (electronic, printed, graphic, audio, statistical, or combinations). There is physical (paper/print) and electronic databases. It could be as simple as an alphabetical arrangement of names in an address book or as complex as a database that provides information in a combination of formats. To learn more, Click here.

Week 7 & 8

Topic: Graphic Introduction to Corel Draw 

CorelDRAW is a vector illustration program. Images are displayed on the computer screen as pixels. How the program treats the pixels is determined by whether the image is defined as a vector or a bitmap. A bitmap file defines the position, colour and size of each pixel. A vector program defines a line of pixels and treats them as a single object. To change an object in a bitmap, you must change all the pixels, so if a red box on a blue background needs to be smaller, you have to re-create a smaller red box and change the pixels where the box was to the blue background. When you have a vector image, you redefine the size and location of the lines. Each object is independent of the others and can be manipulated as needed. To make your work easier, Corel Corporation has added a few bitmap manipulation tools in DRAW and includes its bitmap manipulation program, CorelPhotoPaint, when you purchase CorelDRAW. To learn more, Click here.

Week 9 & 10

Topic: Basic Programming

BASIC Programming

In 1964, John G. Kemeny and Thomas E. Kurtz designed the original BASIC language at Dartmouth College in New Hampshire.

B – Beginners

A – All-purpose

S – Symbolic

I – Instructional

C – Code.To learn more, Click here.