Computer Science / ICT Knowledge Home

Definition of High level language High level language (HLL) is a computer programming language that is machine independent and designed to reflect the requirement of a problem. They look like the natural human understandable language or mathematical notation. HLL are also called Problem-Oriented Languages because they are used to solve problems. They require translators to translate them to machine language. - Modes of translation High level languages are translated to machine language by compilers or interpreters. They perform the translation in two different ways. - Compiler A compiler is a computer program that translates a whole source HLL source program (Code) into an executable machine language (binary numbers) code all at once before executing and bringing out the errors, i.e. a compiler translates all the program before running or execution. - Interpreter An interpreter is a program that translates and executes HLL source program one line...

WHAT IS ICT? ICT is an acronym which stands for information and communication Technology, ICT covers any device that is being powered by electricity and it’s capable of storing, retrieving, manipulating, transmitting and receiving of information electronically in a digital form. Products of ICT includes: Personal computers (PCs), digital Televisions, email, robots etc TYPES OF ICT Types of ICT are: a. Broadcasting b. Telecommunications c. Data networks d. Information system e. Satellite communication A. BROADCASTING : Broadcasting is the distribution of audio and video contents to a dispersed audience through a medium such as radio, television, electronic bill boards etc. The three (3) types of Broadcasting are  1) Radio broadcasting. 2) Television broadcasting. 3) Satellite broadcasting. 1) Radio broadcasting: is an audio (sound) broadcasting services, broadcast through the air as radio waves from transmitter to an antenna ...

History of computing Computing is the study of how computers and computer system works and how they are constructed and programmed. Its primary aspects of theory, systems and its application are drawn from the disciplines of Technology, Design, Engineering, Mathematics, Physical sciences and social sciences. Computing is a process of utilizing computer technology to solve a problem or complete a task. Computing may involve computer hardware or software, but must involve some forms of computing every day whether they realize it or not. Sending an email, using a cell phone can be considered as forms of computing. While computing is intimately tied to the representation of numbers. • CONCEPT OF NUMBER SYSTEM IN COMPUTER Most computers operate using Binary Logic meaning computer represents data and information as Binary Numbers i.e. 0s and 1s. the binary number works like the decimal number system excepts that the binary number systems uses base 2, which consist of only t...

WHAT IS INFORMATION COMMUNICATION TECHNOLOGY (ICT)? ICT: ICT stand for Information and Communication Technology.  “ICT can be defined as a wide range of technological tools and resources used for transmitting, analyzing, retrieving, storing, processing and gathering information. Furthermore, ICT helps us to communicate, create, disseminate, store, and manage information.” These involves the use of digital devices like digital television, computers, fax machine, mobile phones, satellite communication, GPS, the Internet, broadcasting technologies (radio and television), and telephony and so on. AS A TRANSFORMATIONAL TOOL:   Information communication technology has being able to transform the world from several billions of Villages into one single global village. It is so important in the world today that it makes it necessary for every person to be competent in the use Information communication technology for the task they have to accomplish. Organization of all sizes...

Week 1: Revision and scheme of work Week 2: High level language Definition of high level language Modes of translation Classification of High level language Week 3: Basic Programming (II) - The meaning of BASIC - BASIC Character set - BASIC Statement - Basic Arithmetic operators - Basic Arithmetic expression - Evaluation of Arithmetic expressions - Simple Basic programs Week 4 Networking - Definition of a network - Types of a network - Network topology - Network devices - Benefits of networking Week 5 Cables and Connectors  - Network cables and connectors - Computer cables and connectors Week 6 Graphics (Corel Draw) - Definition of Graphics - Examples of graphics packages - Features of Corel Draw Week 7: Data base / Practical - What is a database - Database management system - Basic database terminologies - Form of database organizations - Computer database format - Creating database -...

Week 1: Revision and scheme of work Week 2: High level language - Definition of high level language - Modes of translation - Classification of High level language Week 3: Basic Programming (II) - The meaning of BASIC - BASIC Character set - BASIC Statement - Basic Arithmetic operators - Basic Arithmetic expression - Evaluation of Arithmetic expressions - Simple Basic programs Week 4 Networking - Definition of a network - Types of a network - Network topology - Network devices - Benefits of networking Week 5 Cables and Connectors  - Network cables and connectors - Computer cables and connectors Week 6 Graphics (Corel Draw) - Definition of Graphics - Examples of graphics packages - Features of Corel Draw Week 7: Data base / Practical - What is a database - Database management system - Basic database terminologies - Form of database organizations - Computer database format - Creating d...

Week 1: History of Computing - Concept of Number system in Computer - Common terms  of the Number System - Concept of the Number system Week 2: Digitalization of Data - Definition of Digitalization of data - History of computer development - Types of Computer - Component of Computer: Input and Output Week 3 - 4: Data and Information - Definition of Data - Meaning of Information - Difference between Data and Information - Examples of Data and Information Week 5: History of Computer - Generation of Computers Week 6 – 7: Classification of computers - Classification of computer by Type - Classification of computer by Size - Classification of computer by Functionality. Week 8: ICT application in everyday life - Uses of ICT - ICT and the society Week 9 – 10: Word Processing - Definition of Word Processing - Uses of Word Processing - Examples of MS Office Software - Loading of MS Word - Creating, saving and retrievin...

Week 1: Revision and Scheme of Work Week 2-3: ICT as a Transformation tool and ICT gadgets - What is information communication technology (ict)? - As a transformational tool - Advantages of information communication technology - Disadvantages of information communication technology - Information communication technology gadgets - General benefits of ICT Week 4: Internet III (Search Engine) - The Internet - The basic terms of Internet - Internet Browsers - World Wide Web - Search Engine - Uses of Search Engines - The difference between the internet and World Wide Web Week 5 - 6: Database - Definition of database - Concept of database - Forms of database - Database management systems - Application areas of data base management systems - Examples of database applications Week 7 - 8: Human Issue - Meaning of Human Issues - Computer professionals and their functions - Qualities of good computer professionals - Computer professional b...