LOADING MICROSOFT OFFICE EXCEL Click on start button at the bottom left of the desktop A pull-up menu will appear Click on “All Program”. A pull-up menu will appear again. More the mouse pointer to Microsoft office. A drop down menu will appear. Click on “Microsoft Excel” Wait while the Microsoft Excel loads and appear…
COMPUTER PROFESSIONAL A computer professional maybe: A person working on the field of Information Technology A person who has undergone training in a computer related field colleges, universities and computer institutes. A person who has an extensive knowledge in the area of computing. JOB TITLES FOR COMPUTER PROFESSIONALS INCLUDES Programmers and software engineers Computer…
SPREADSHEET A spreadsheet interactive computer application program for organization, analysis and storage of data in tabular form. A spreadsheet application is a computer program such as Excel, open office Cacl, or Google Docs spreadsheets. An electronic spreadsheet is a computer program that is used for storing, organizing and manipulating data. A spreadsheet is a…
ICT GADGETS ICT (Information and Communication technology) is an umbrella term that includes any communication, encompassing; radio, television, cellular phones, computer and network hardware and software, satellite systems and so on as well as the various services and applications associated with the much as video conferencing and distance learning. ICT also refer to all…
ICT covers any product that will store, retrieve manipulate transmit or receive information electronically in a digital form. E.g. computers, digital television, email. Information Technology (IT) refer to the systems used to store and manage information through the use of technologies such as computers. Information System (IS) means a computer-based system to manage information….
GRAPHIC PACKAGES Graphic is a symbol produced by a process such as drawing, writing, sketching etc. Computer graphics are symbols that are displayed on the screen of a Visual Display Unit (VDU) which are considered as diagrammatic that includes pictures, Clip Art, regular/irregular shapes, Smart Art, Charts, Map etc. A graphic package is a…
THE PAINT This is a graphic program that can be used to create drawing on a blank page or on top of other pictures in the computer. Paint is incorporated with windows. It is also used to open and edit pictures. Starting Paint To load paint, take the following steps Click on Start button…
SIMPLE BASIC PROGRAM Example 1: A BASIC program has the following Line number(s) (b) Remark (REM) (c) Assignment (LET, INPUT, DATA) (d) Output statement (PRINT, WRITE) (e) Terminators (END, STOP) (f) Conditional statement (IF, ELSE, AND, OR, etc) REM Program to write (or print) numbers 1 to 20. 10 START 20 A = 0;…
PROGRAMMING LANGUAGE Program: A program is a set of instructions that the computer needs to execute a task or series of tasks. Programming Language: This is a computer language that is a standard means of communication technique for expressing instructions to a computer. It is a language that specified instructions to be executed on a…
BASIC PROGRAMMING LANGUAGE ORIGIN The original BASIC language was designed on May 1, 1964 by John Kemeny and Thomas Kurtz and implemented by a team of Dartmouth students under their direction. The acronym BASIC comes from the name of an unpublished paper by Thomas Kurtz. BASIC was designed to allow students to write mainframe computer…
CONVERSION OF OTHER BASES TO DENARY SYSTEM Conversion of other bases to denary system. To convert numbers in the other bases to denary system, expand the given number in power of its bases. Examples: Convert 35416 to denary 35416 = 3 x 162 + 5 X 161 + 4 x 160 = 3 x…
APPLICATION SOFTWARE An application program (app or application for short) is a computer program designed to perform a group of coordinated functions, tasks, or activities for the benefit of the user. Examples of application include a word processor, a spreadsheet, an accounting application, a web browser, a media player, a console game or photo editor….
NUMBER BASES Number bases refer to ways of counting numbers. Counting started way back in the ancient times when began counting first, with his fingers. He counts in tens maybe because he has ten fingers and this is called decimal system of counting. There are different bases of counting, Different number bases/system Binary system Octal…
OUTPUT DEVICES: An output device is any piece of computer hardware that is used to output data that has been previously entered into a computer or similar processing device. An output device is any piece of computer hardware equipment used to communicate the results of data processing carried out by an information processing system (such…
A computer language translator is a program that translates a set of code written in one programming language into a functional equivalent of the code in another programming language. Translator – usually included within programming software – translators convert high-level code into machine code. Assemblers An assembler translates assembly language into machine code (also…
COMPUTER SOFTWARE Computer software or simply software is any set of instructions that direct a computer to perform specific operations. Computer hardware and software require each other and neither can be realistically used without the other. Software is a program that enables a computer to perform a specific task, as opposed to the physical…
OPERATING SYSTEM (OS) An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs. The operating system is a component of the system software in a computer system. Examples of Operating System (OS) UNIX and UNIX-like operating system OSX (formerly “Mac OSX”) is a…
Computer hardware is the physical parts or components of a computer, such as the monitor, mouse, keyboard, computer data storage, hard disk drive (HDD), graphic cards, sound cards, memory, mother board, and so on. Examples of computer hardware are Input devices – mouse, scanner, light pen, joystick, etc. Output devices – printer, monitor, plotter,…
COMPUTER SYSTEM A computer system is one that is able to take a set of inputs, process them and create a set of outputs. This is done by a combination of hardware and software. The computer system has one or more inputs to provide data. This data is then processed in some way. The outcome…
Generation of Computers A generation is often referred to the state of improvement in the development of a product. Generation of computer is the advancement of computer technology from time to time. In every generation, the circuitry has become smaller and more advanced than the previous generation. Each generation of computer is characterized by a…