Post Views: 0 An operating system is a group of computer programs that coordinates all the activities among computer hardware devices. It is the first program loaded into the computer… Read More »Functions of Operating System
Post Views: 0 Definition: An operating system is a collection of programs that control the application software that users run and provides a link between the hardware and software currently… Read More »Examples of Operating System
Post Views: 0 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… Read More »Operating System
Post Views: 0 Anti-virus software is your computer’s best defense against malware (e.g., viruses, Trojan horses, worms, spyware) – install and update anti-virus software on your computer and regularly scan… Read More »COMPUTER SAFETY MEASURES
Post Views: 0 Electronic transmission “Electronic transmission” means any process of communication that does not directly involve the physical transfer of paper and that is suitable for the retention, retrieval… Read More »MEANS OF TRANSMITTING INFORMATION
Post Views: 0 A chart, also called a graph, is a graphical representation of data, in which “the data is represented by symbols, such as bars in a bar chart,… Read More »Process of information transmission
Post Views: 0 Internet abuse refers to improper use of the internet and may include: Internet has so many advantages, if it is used positively without caring any false means and attractive… Read More »Internet Abuse
Post Views: 0 The Internet is the global system of interconnected computer networks that use the Internet protocol suite (TCP/IP) to link billions of devices worldwide. It is a network of networks that consists of millions of private,… Read More »Internet – FULL EXPLANATION
Post Views: 0 A collection of data or information that has a name, called thefilename. Almost all information stored in a computer must be in a file. There are many different types of files: data files, text files ,program files, directory files, and so on.… Read More »File Organization
Post Views: 0 SELECT Query Basics Why MS-Access? A number of RDBMS vendors provide a GUI to aid their users in developing queries. These can be particularly helpful to novice… Read More »Querying Relational Database
Post Views: 0 Integrity Constraints over Relations An integrity constraint (IC) is a condition specified on a database schema and restricts the data that can be stored in an instance… Read More »RELATIONAL MODEL – Integrity Constraints
Post Views: 0 A relational database is a collection of data items organized as a set of formally-described tables from which data can be accessed or reassembled in many different… Read More »Relational database
Post Views: 6 The following are some of the prominent computer professional bodies in Nigeria. Nigeria Computer Society (NCS) Institute Of Management Information System. (IMIS) Computer Professional Registration Council of… Read More »Computer Professional Bodies
Post Views: 4 Computer personnel are those who assemble, install, repair and operate the computer system. The term equally includes those people who make their living out of the computer… Read More »CAREER OPPORTUNITIES IN DATA PROCESSING
Post Views: 0 There are various ways in which viruses can attack computer system; When you download or open attachment in e-mail message or by instant messaging messages Installing unknown… Read More »SOURCES OF COMPUTER INFECTION VIRUS | WARNING SIGNS, PREVENTIVE, ANTIVIRUS
Post Views: 0 Computer virus is a software program written with malicious intentions. They are intentionally written by some software developer to cause severe damage for the computer, programs, and… Read More »COMPUTER VIRUS | TYPES, EXAMPLES, EFFECTS
Post Views: 0 A computer network is system that connects two or more computers together using a communication link. It describes a processing system with a number of independent, relatively… Read More »NETWORKING | LAN, MAN, WAN, SERVER, TOPOLOGY
Post Views: 2 Parallel Database improve processing and input/output speeds by using multiple CPU and disks in parallel. A Parallel Database system seeks to improve performance through parallelization of various… Read More »PARALLEL DATABASE
Post Views: 0 Crash recovery is the process by which the database is moved back to a consistent and usable state. This is done by rolling back incomplete transactions and… Read More »CRASH RECOVERY | ARIES, CONDITIONS, PROCEDURES
Post Views: 0 FORMULATION OF FREQUENCY TABLE FOR UNGROUPED DATA UNGROUPED DATA: Ungrouped data is one in which the raw data has occurrences or frequencies more than and are without… Read More »DATA COLLECTION AND PRESENTATION