When computer processor process data to give information it require a way of displaying what is happen. Computer monitor is used to display (softcopy) what is happening inside the computer. It is also called computer screen or Visual Display Unit (V.D.U.). It looks similar to Television set with exception that they don’t have the button to change channels. In fact modern Television set can be converted into computer monitor.
Computer monitors have evolved from the bulky big CRT monitor to ultra-slim screen that we have today. Some of the computer monitors types or technology includes: Continue Reading
Computer hardware are the tangible part of a computer. They comprise of main part of a computer both internal and external or peripherals. The main characteristic of hardware is they can be seen, felt and even touch unlike the software.
Connection to system unit
In today`s computer most of the hardware are connected using the Universal Serial Bus (USB). The USB comes in different generation with the latest offering higher transfer speed. Most of the peripherals connected using USB include printer, mouse, keyboards etc. Continue Reading
Computer can be classified in so many ways and some of them include:
- a) Generation
- b) Size
- c) Type of data processed
- d) Functionality
Computers are categorized in terms of the period that they were on used or when they were developed. They are 5 in this category (more…)
What is BIOS?
BIOS stand for Basic Input Output System and also known as System BIOS. It is a ROM flash memory that carries the basic instructions on what computer is supposed to do. It is mounted on the computer motherboard. The software stored in it checks if all the computer hardware and other component are working well before it give way for the operating system to take over. If there is any hardware part that is not functioning well the Error message will be displayed i.e. keyboard not connected.
BIOS from American Megatrends Inc
Functions of a System BIOS
BIO is an important component of computer and if not present the computer may even not boot at all. Its main functions includes: (more…)
Authentication means verification while biometric means use of physiological characteristic of human to recognize them. Biometric authentication means using unique physiological characteristic to verify that the user is the one that they claim to be.
It is mostly used in area that requires maximum security like in military base. They can be used to lock room where the weapons are stored. (more…)
They are programs which are written to perform a specific task to a certain user. Mostly they are designed a specific function. Today almost all the fields have their own customized application software to meet the needs of that area.
Uses of application software`s
They can be used to manipulate text, number, graphics or the combination of these depending on what the designer intended for. (more…)
Computer is defined as an electronic device that allows the input of data, which is processed, stored and then outputted as information. It is an electronic device because it will require electric power for it to function and it also has the electronic component.
It allows data to be inputted into it through input devices (e.g mouse, keyboard, joystick e.t.c) that are connect into it. (more…)