What Is Input And Output Computer Hardware And Memory of Computer ?
Output Section Of Computer :
The result of processing the information inputted into the computer is called 'output'. Output is called 'Nirgam' in Gujarati, the device used to get the output is called 'Output Device'. Monitor Computer Output Devices. Monitor is the most commonly used output device. Monitor is also called 'VDU'. VDU : Visual Display Unit VDU : Video Display Unit Everything can be seen on it. Main two types of monitors: 1) In terms of color. 2) In terms of technology B: Blue Two types of monitors in terms of color: A) Monochrome monitors: White and black (B / W) in color. B) Color Monitor: Colorful (RGB) is available. R: Red G: Green Three types of monitors in terms of technology: A) CRT (Cathode Ray Tube) Phosphorus (P) element is used. B) LCD (Liquid Crystal Display) In terms of color technology TFT (Thin Film Transistor) is used. Three connectors are used to connect the monitor, 1) VGA : Video Graph / cs Adapter / Video Graphics Array 2) HDMI : High Definition Multimedia Interface 3) DVI : Digital Visual Interface PIXEL is the smallest part of the monitor screen.
The word PIXEL is made up of Picture + Elements. Screen resolution is measured in DPI (Dols per Inch). Plotter Plotter is used for printing large maps and posters. There are two main types of plotters. 1) Drum plotter 2) Latbed plotter C) LED (Light Emitting Diode) Gallium Arsenide (GaAs), Gallium Phosphide (GaP) and Gallium Arsenice Posh SIXT, commonly called LCD and LED as flat panel display'.
Speaker is used to output the data in digital form as sound. Headphone 7 A headphone is a device made by jacking two small speakers that can be connected to devices like mobiles, radios. Projector. A projector is used to view the computer scene on a large screen. Printer The device used to print the information stored in the computer on the paper surface is called 'Printer'. Printed copy is called Hard Gopy. The copy stored in the computer or displayed on the monitor screen is called 'Soft Copy'. Types of Printer 1) Impact Printer. 2) on Impact Printer Ribbon is used in 0 Impact Printer. There are three types of impact printers. A / Daisy Wheet Printer. There is an old technology printer, which works at a very slow speed. Cannot print graphic. B) Dol Matrices Printer Prints in the form of dots, print quality is measured in DP (lots per Inch). Printer speed is measured in CPS (Characters per Second). C) Line Printer:- The entire line is printed simultaneously.
There are three types of non-impact prints. A) Inkjet Printer Liquid ink is used in Inkjet Printer. Liquid E is in the cartridge. Impact Printer Inkjat Printer uses four color ink. G: Gyan (Blue) M: Magenta (Pink) 4: Yellow (Yellow) K: Black (Ali) Non Impact Printer B) LASER Printat: LASER: Light Amplification by Stimulated Emission of Radiation.
Toner is used in LASER Printer. LASER Printer is the fastest printer. Laser printer speed is measured in PPM (Pages per Minute). C) Thermal Printer : In thermal printer, printing is done by thermal process. Disadvantage of thermal printer is that print fades in 2 to 3 days. To Know: Peripherals (Peripheral Units): The units that perform input and output functions are called 'Peripherals' (Peripheral Units). Questions Asked So Far 1) Full Name of PPM: 2) Ans: Pages per Minute is the fastest printer. Ans: Used to view on LASER Printer.
Processing Section :
The processing section of the computer INPUT DEVICES - cl: control unit. CPU: Central Processing Unit. The CPU of the computer is a small chip made of silicon. Controls all the processes running in the computer. CPU is the brain of the computer. CPU = ALU + CU + MU - ALU ; Arithmetic Logic Unit is for mathematical and logical calculation. For managing tasks - MU: Memory Unit PROCESSOR CONTROL ult 0 The processing section of the computer includes ALU and CU. ALU: Arithmetic Logic Unit W CU: Control Unit - First microprocessor: Intel 4004 India's first indigenous microprocessor: Shakit (IIT Madras) Hz. ARITHMETIC LOGIC UNIT CALL butchord doto inaon.
All the electronic circuits of the computer are placed on this small chip. It is also known as 'microprocessor'. MEMORY instruction. information STORAGE DEVICES pamation To store dataThere are mainly three chips in the CPU: BIOS, CMOS and GPU BIOS. Blos: Basic Irpul Output System. When the computer is turned on The process that takes place is called 'booting process'. POST is processed before the booting process. - POST: Power On Self Test OUTPUT DEVICES CMOS SAMOS CMOS: Complementary Metal Oxide Semiconductor When the computer is off, the date and time work to be continuously updated.
GPU : Graphics Processing Unit GPU chip is used to process large amount of data. GPU chip is mostly used in the multimedia field.
Computer Power Supply Section :
PSU : Power Supply Unit Main two sections of Power Supply Unit : 1 ) SMPS : Switched Mode Power Supply 2 ) UPS : Uninterruptible Power Supply SMPS SMPS : Switched Mode Power Supply SMPS : AC converts to DC and converts high voltage to low voltage. AC: Alternating Current - DC: Direct Current UPS UPS: Uninterruptible Power Supply. UPS keeps the computer running for some time when the power suddenly goes out.
Primary Memory in Computers :
The part of computer where information is stored is known as 'Memory'. Main two types of memory: 1) Primary memory (main memory) 2) Secondary memory (secondary memory) Primary memory Primary memory is known as “Main Memory” or “Internal Memory”. There are two main types of primary memory: A) RAM - B) ROM Cache memory and registers are also included in primary memory. RAM: Random Access Memory RAM is called temporary memory.
RAM is called temporary memory. RAM is also called 'temporary memory'. Data in RAM is destroyed when the computer is turned off. So RAM is also called Volatile Memory. Two types of RAM: A) DRAM: Dynamic RAM is recached every second B) SRAM: Static RAM - not recached every second, so it is faster but slower than DRAM. DDR, DDR-2, DDR-3 are examples of RAM. DDR : Double Data Rate. ROM : Read Only Memory. ROM stands for Read Only Memory ROM is memory from location.
Data is stored in ROM even after turning off the computer, so ROM is also called 'non-volatile' memory. Three Types of ROM A) PROM: Programmable Read Only Memory - Data cannot be deleted. B) EPROM: Erasable Programmable Read Only Memory. Entering ultraviolet rays deletes the data. High voltage data is completely deleted. SHEEPROM : Electrically Erasable Programmable Read Only Memory
Cache Memory :
Data is exchanged between the CPU and RAM when the CPU starts, the memory used is called 'Cache Memory'. Cache is used for very fast data storage. Using Cache makes the computer faster. Registers are a part of the processor unit. Used to store data.
