Skip to main content

Posts

Showing posts with the label INTEGRATED CIRCUITS

ARITHMETIC CALCULATION IN COMPUTERS

ARITHMETIC OPERATION AND CONVERSION DONE BY COMPUTER
As we have seen in previous post that arithmetic computation is an important thing in calculation, if a person doesn’t know arithmetic computations,he will be doomed to be in trouble during calculations that happensin everyday life.So it is necessary to learn arithmetic computation.So in this post I am going to take one step further.I am going to write about octal and hexadecimal numbers.
Now let us discuss some arithmetic conversion.Let us see what is octal and hexadecimal numbers used by digital computer.
The conversion from and to binary, octal and hexadecimal plays an important part in digital computers.Since 23 = 8 and 24 = 16 each octal digit corresponds to three binary digits and each four binary digit corresponds to one hexadecimal digit.
The conversion of from binary to octal is easily accomplished by partitioning the binary into group of three digit each, starting from binary point and preceding to the left or to the right…

MONITORS: A COMPUTER PART

Folks today i am going to say something about an output device called monitor.As maximum people know about monitors so i am going to write few things about monitor much of the information you know but i am going to say some few words hence please be with me.
Monitor is a primary output device.It displays all current process application and data i.e. Running inside a computer system.A standard monitor uses an analog vga interface, which plugs into a tp15 vga connector to a mother board.There are two types of monitor technology available to the market.
CATHODE RAY TUBE (CRT MONITOR)
This monitor is fading in popularity but still in widespread use with older computer systems.It is analog standard monitor a crt uses a picture tube that was used in older tube based tv sets.
The narrow end of the picture tube contains an electron gun it emits 3 electron beams one each for red, green and blue light.The front end of the picture tube is coated with phosphorous.When the elecron hit the phosphorou…

SUMMARY OF MEMORY

RAM PROPERTIES Friends in the last post i tried to explain the different types of ram as well as given the details of its similarities now i am going to show you how the properties of ram can be judged .
SO LET US BEGIN.
SINGLE SIDED VS DOUBLE SIDED DIMMS or DUAL INLINE MEMORY MODULE whatever you call are often referred to as single chip or double sided to describe whether the chips are located on one or both of the modules printed circuit board .
However these terms may cause confusion or distract you from the topic, as the physical layout of the chips does not necessarily relate to how they are logically organized or accessed in whatever terms you are told.
ERROR CORECTING CODE MEMORY (ECC MEMORY) An ERROR CORRECTING CODE (or ECC) whatever general public says could be akind of computer data storage which will detect and proper the more common types of internal data corruption in simple words with firmness and boldness.

ALL ABOUT LASER PRINTER

ALL ABOUT LASER PRINTER

This printer is also known as page printer because they receive their print job one page at a type.There are two major types of laser printer 1)The first use a laser to scan the image on two a organic photo conductive drum (OPC) 2)The second use an array of led to create the image on the drum.Xerox invented this printer in 1971 but the first laser printer was introduced y hp in 1984.
BASIC COMPONENTS
Tonner cartridge:Tonner is a black carbon substance mixed with polyster resin to make it flow better and iron oxide particles to make it sensitive to electrical charge.Tonner contain a medium called developer which carries the tonner until it is used by the EP(Electro photography) process.
The tonner also contains the opc drum. The drum is coated with a photo sensitive material that hold a static charge unless it is exposed to light.The drum also contains a cleaning blade known as doctor blade. That continuously scraps the unused tonner from the drum.
Load Scanner Assem…

INTEGRATED CIRCUITS WITH A SOFTWARICAL TWIST

LOGICAL DESIGN OF FUNCTION OF INTEGRATED CIRCUITS

A binary variable or called as two value variables can take the value of 0 or 1.  A Boolean functions or named as two variable function is an expression formed with binary variables, the two binary operators OR and AND, the unary operator NOT, parenthesis, and equal sign.  For a given value of the variables to made it as good and thorough, the function can be either 0 or 1.  Consider, for example, the Boolean function:

                                                 F1 = xyz’

The function as shown above F1 is equal to 1 if x = 1 and y = 1 and z’ =  1; otherwise F1 = 0.  The above is an example of a Boolean functions represented as an algebraic expression.  A Boolean function may be represented in a truth table.  To represent a function of a truth table we need a list of 2^n combination of 1s and 0s of the n binary variables and a column showing the combinations for a function equal to 0 or 1.


As shown in Table below, there are eight p…