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COMPUTER SOFTWARE. COMPUTER SOFTWARE refers to the various programs & data used in a computer system that enable it perform a no. of specific functions. Software instructs the computer on what to do and how…
CLASSIFICATION OF OPERATING SYSTEMS. The OS determines determine the type of processing that a computer system is able to perform, since it controls the allocation & use of the computer resources. Operating systems can be…
• An Operating system is a set of programs that is used to manage the basic hardware resources of a computer.
• This is the main program that controls the execution of user applications, and enables the user to access the hardware & software resources of the computer.
When the computer is switched on, the OS programs run & check to ensure that all parts of the computer are functioning properly.
COMPUTER OUTPUT ON MICROFORM (COM).
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This is the process of transforming digital data produced by the computer into human-readable form & recording it in reduced physical size into a photographic film.
This method of output provides photographed type of computer output stored as microscopic filmed images into the micro-form.
MEASURING THE MEMORY SIZE OF A COMPUTER.
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MEASURING THE MEMORY SIZE OF A COMPUTER.
The size of a computer’s memory is the no. of ‘units of storage’ it contains. The unit of storage can be a Bit, a Byte, or a Word.
A Bit is the smallest unit of storage & can be used to store a 0 or a 1.
CENTRAL PROCESSING UNIT (CPU) / PROCESSOR.
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The CPU is described as the computer’s ‘brain’ that monitors all the computer operations. It is the unit inside the computer where all software instructions, math and logic operations are carried out.
In Microcomputers, the CPU is implemented in a single silicon device called a Microprocessor (Computer chip), which is made by combining a very large no. of transistors together using a technology referred to as Very Large Scale Integration (VLSI).
Supermarkets. Supermarkets and other retail stores use computers for stock control, i.e., to help them manage their daily activities.
The stock control system keeps record of what is in store, what has been sold, and what is out of stock. The Management is automatically alerted when a particular item or items are running out of stock and need to be reordered
ADVANTAGES and DISADVANTAGES OF USING COMPUTERS.
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ADVANTAGES and DISADVANTAGES OF USING COMPUTERS.
Computers have many advantages over other types of office and business equipment that are used for data processing functions. Some of the advantages are:
CLASSIFICATION ACCORDING TO PHYSICAL SIZE.
Computers can be classified into 5 main groups according to their size as:
Supercomputers.
Mainframe computers.
Minicomputers.
Microcomputers.
Portable computers (Laptops, Notebooks & Palmtops).
Type of processor (Central processing unit – CPU)
Microcomputers use microprocessors, which are manufactured on a single chip, as their CPU.
In larger computers such as supercomputers, mainframe & minicomputers, the processing is carried out by a number of separate, high-speed components instead of a single processor.
The COVID-19 pandemic has forced us to change the way we live and work. One of the most significant changes has been the way we access healthcare. With the threat of infection looming large, many people are now opting to consult with doctors online instead of going to brick-and-mortar clinics.
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How to Make Money Coding
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Coding is the process of transforming computer instructions into a form a computer can understand. Programs are written in a particular language which provides a structure for the programmer and uses specific instructions to control the sequence of operations that the computer carries out. The programming code is written in and read from a text editor, which in turn is used to produce a software program, application, script, or system.
There are many benefits of programming that make it a great activity for people of all ages. Not only does it teach you how to think analytically and solve problems, but it can also be a great way to express your creativity.
Computer Science versus Computer engineering. There are many different types of engineers, but computer science and computerengineering are two of the most popular. They both involve working withcomputers, but they have different focuses. Computer science…
COMPUTER SCIENCE / IT Project Documentation Example free download. A common question asked of project management leaders is, “What is the value of project documentation, and how can I be sure I’m doing it correctly?”…
If setting up XAMPP on Windows 10 is something that you are still unable to configure, then following the below-given steps would save you a lot of time and effort. Once it’s installed, it will be a breeze to use it. In this tutorial guide, I will show you how to install XAMPP on Windows 10 with ease.
An entrepreneur is someone who comes up with ideas, products, or services to solve problems for the world. The path of entrepreneurship is built differently for every individual, but all successful entrepreneurs need to be prepared for failure and criticism, and they should constantly be learning and improving themselves.
Affiliate Marketing.
here are some tips to avoid any pitfall on affiliate marketing :
VISION SELF HELP GROUP One focus Hello, today we are going to create a Self Help Group online management System. Most Self-Help groups in the world lack very essential record-keeping systems, long hours of approving…
How to Become a Data Analyst – Salary, Qualifications, skills. Hello, hope you are doing great. Let’s start by defining what a data analyst is? Whether it’s sales figures, audience demographics, and market research, or…
The truth about Crypto-Currency. What to Know About Cryptocurrency. What is cryptocurrency? Cryptocurrency is a type of digital currency that generally only exists electronically. There is no physical coin or bill unless you use a…
Basic Computer Operations. A computer as shown in the figure below performs basically five major operations or functionsirrespective of its size and make. These are 1) it accepts data or instructions by way of input,…
Classification of Computers. i. Classification of Computers by Size a) Micro-Computers • Micro –Computers are the Smallest class of Computers• Micro- Computers have one micro-processor in its Central Processing Unit• Micro-Processor refers to Central Data…
History of Computers i. First generation computers (1946-1956) Overview of the Intelligent System They made use of vacuum tubes to store and process information. The tubesconsumed a lot of power and generated a lot of…
Today’s world is an information-rich world and it has become a necessity for everyone to knowabout computers. Purpose of this tutorial is to introduce you about computer systems and itsfundamentals.The word computer comes from the…
NSTRUCTIONS: Attempt all the questions. To be done in groups of 5 – 7 students. [30 Marks]
Researchers in the science of “Artificial Intelligence” has investigated many areas of the mind such as pattern matching, vision, and theorem proving. However, all of these are only parts of the human mind. An intelligent system could include all of these parts, but it still would not be complete, and could not function, unless it also had sensed, a method to choose responses according to its objectives and memories, and some way of performing these responses in and on its environment.
i. The Intelligent System has a temporary objective, that it has derived from its main objective.
ii. It senses its environment, although we have to realize that it has only a few senses and that these can only capture, for instance, light and sound of an object, but can not capture or know the object itself.
iii. The system then stores these sense impressions as elementary concepts. Concepts are a material way of storing information. Working on concepts creates new ones and stores relationships to other total, part, abstract and concrete concepts. Of course, there is a difference between an object or occurrence in the environment, the concept the system uses for its internal processing, and the word it uses to communicate the concept. To continue with the internal processes, in more intelligent systems there should now be a check of the incoming information.