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This operation is referred to as bootstrap. Download as PDF for revision later. The paper is placed over the drum that rotates back and forth.
It draws pictures on a paper using a pen. This type of memory is more economical.
Basic Computer Hardware Notes in PDF
A Keyboard The most common and very popular input device which helps pvf inputting data to the computer. The ALU thinks in bits i. Mouse is the most popular pointing device and cursor-control device having a small palm size box with a round ball at its base which senses the movement of mouse and sends corresponding signals to CPU when the mouse buttons are pressed.
This is plastic tape, usually made of Mylar that is coated with iron oxide, thereby enabling the introduction writing ; retention memory and reading of dpwnload recorded information. Some of them are described introduction to pc hardware repair pdf download.
The sharpness of the image depends upon the number of pixels. The MROM cannot be programmed by the user. B Mouse Mouse is the most popular pointing device and cursor-control device having a small palm size box with a round ball at its base which senses the movement of mouse and sends corresponding signals introduction to pc hardware repair pdf download CPU when the mouse buttons are pressed. Think of the ALU as the logical part of the brain.
Inkjet plotters can also produce large drawings with different colours. There are two types of plotter. Both erasing and programming take about 4 to 10 milliseconds.
The term dynamic indicates that the memory must be constantly refreshed or it loses its contents. A plotter gives a hard copy of the output. Basic Computer Hardware questions are easy to remember and can count for easy marks. Peripheral downloae are devices connected to the computer externally. Software is a set of electronic instructions consisting of complex codes Programs that make the computer perform tasks.
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One of the oft seen topics in Computers is Hardware. C Magnetic Tape This is plastic tape, usually made of Mylar that is coated with iron oxide, thereby enabling the introduction writing ; retention memory and reading of magnetically recorded information.
Liked these Basic Computer Hardware Notes? The very first ROMs were hard-wired devices that donwload a pre-programmed set of data or instructions. A carriage holding one or more pens is mounted horizontally across the drum. Information on a floppy disk is recorded in the magnetized states of particles of iron oxides evenly placed upon concentric circles known as tracks.
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The impact printers print the characters by striking them on the ribbon which is then pressed on the paper. The information is stored permanently in such memories during manufacture. It controls the operation of all parts of computer. Primary memory is memory that is part of the computer itself and necessary introduction to pc hardware repair pdf download its functioning. A CPU has 3 components as listed below. In flat bed plotter, the paper does not move.
G Plotter A plotter is used to create high-quality visuals on paper.
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Introductioj is a software, so is any other program that runs on your computer. These devices are very sensitive to environmental conditions humidity and temperature as well as to external magnetic fields and need to be stored carefully.
The most common and very popular input device which helps in inputting data to the computer. Here are the most used types of peripheral devices: