Category: COMPUTER

INTERNAL CLOCK | HOW CLOCK WORKING IN COMPUTER SYSTEM

INTERNAL CLOCK | HOW CLOCK WORKING IN COMPUTER SYSTEM

What is Internal Clock? Every digital computer encompasses a system clock, however, the clock’s primary purpose isn’t to stay the time of day. Like most recent wristwatches, the clock is driven by quartz. Once electricity is applied, the molecules within the crystal vibrate immeasurable times per second, a rate that never changes. The speed of…

By Free Online Notes February 11, 2018 Off

COMPUTER MEMORY | PRIMARY AND SECONDARY MEMORY

COMPUTER MEMORY | PRIMARY AND SECONDARY MEMORY

What is Computer Memory? The central processing unit contains the essential directions required to control the PC, However it cannot store entire programs or giant sets of knowledge for good. The central processing unit has to have millions or even trillions, in some computers of bytes of area wherever it will quickly scan or write…

By Free Online Notes February 11, 2018 Off

INPUT DEVICES | AUDIOVISUAL INPUT DEVICES

INPUT DEVICES | AUDIOVISUAL INPUT DEVICES

What is Audiovisual Input devices? Today, many new PCs are equipped with complete multimedia capabilities. New computers have features that enable them to record audio and video input and play it back. Some of the Audiovisual input devices are discussed below;- AUDIOVISUAL INPUT DEVICES The following are the various Audiovisual Input devices;- MICROPHONES Now that sound…

By Free Online Notes January 10, 2018 Off

DEVICES FOR THE HAND | USEFUL FOR COMPUTER

DEVICES FOR THE HAND | USEFUL FOR COMPUTER

What is Devices? Most input devices are designed to be used by hand. Alternative input devices arc purpose computers. Tapping a handheld computer’s screen pen is a much faster way to Input commands than typing miniature keyboard, on the other hand, a specialized give new purpose to a standard system, If you want to play…

By Free Online Notes January 10, 2018 Off

WHAT IS MOUSE ? BENEFIT OF MOUSE

WHAT IS MOUSE ? BENEFIT OF MOUSE

What is Mouse ? A personal computer that was purchased in the early 1980s probably included a keyboard as the only input device. Today, every PC includes a pointing device as standard equipment. Full-size PCs usually include a mouse as the pointing device. A mouse is an input device that you can move around on…

By Free Online Notes December 24, 2017 Off

WHAT IS KEYBOARD | STANDARD KEYBOARD LAYOUT

WHAT IS KEYBOARD | STANDARD KEYBOARD LAYOUT

What is keyboard ? It is very common that Keyboard is still useful input devices for entering important data into the computer system and therefore it is also known the first peripherals input device. As we know that standard keyboard includes about 100 keys; each key sends a different signal to the CPU. If you have…

By Free Online Notes December 24, 2017 Off

WHAT IS SOFTWARE? VARIOUS TYPES OF SOFTWARE

WHAT IS SOFTWARE? VARIOUS TYPES OF SOFTWARE

What is Software? The ingredient that enables a computer to perform a specific task is software, which consists of instructions. A set of instructions that drive a computer to perform specific tasks is called a program. These instructions tell the machine’s physical components what to do; without the instructions, a computer could not do anything…

By Free Online Notes December 24, 2017 Off