Information technologies and communications ministry of development tashkent university of information technologies named after muhammad al-khorezmi

REPUBLIC OF UZBEKISTAN
INFORMATION TECHNOLOGIES AND COMMUNICATIONS
MINISTRY OF DEVELOPMENT
TASHKENT UNIVERSITY OF INFORMATION TECHNOLOGIES NAMED AFTER MUHAMMAD AL-KHOREZMI
KARSHI BRANCH

FACULTY OF COMPUTER ENGINEERING
AX-11-22-GROUP STUDENT
"ENGLISH ”
PREPARED ON THE SUBJECT

4 SELF-STUDY
Fulfilled: Esanov Asliddin
Received: Nigmoyeva Makhlyu

KARSHI-2022
Plan:
1.Programming languages,about hardvare decices
2.Degress of comparison of adjectives, android devices
1.
Plan:
1. Brief information about external installations of the computer.
2. Brief information about the internal installations of the computer.
3. Conclusion.
Work with internal and external devices of the computer. External devices of a personal computer. RAM-Random Access Memory
Are there additional and auxiliary devices connected to a PC to expand the functionality of peripheral devices?
Information input devices
(keyboard, mouse, trackball, joystick, scanner, microphone, etc.)
Trackball (trackball) is a ball (reverse mouse) located along with the keys on the keyboard face.
The movement of the pointer across the screen is carried out by rotating the ball.
Touch manipulator. This is a mouse pad without a mouse. In this case, the cursor is controlled by simply moving your finger along the mat.
Digitizer (graphics tablet) allows you to create or copy drawings. Drawing is done with a special pencil or finger on the surface of the digitizer. The results of the work are produced on the monitor screen.
A scanner is a device for inserting information into a computer from paper. Scanners are available on tablet, desktop, and handheld.
Mouse-information input device. Changes mechanical movements on the table to an electrical signal transmitted to the computer.
Light feathers-this way you can draw pictures and immediately write handwritten texts that appear on the screen.
Devices that extract information
(monitor, printer, plotter, speaker, etc.)
Monitor-information that is seen by the main display computer.
A Modem is a device for connecting computers to each other over long distances via a telephone line. You can connect to the Internet using a Modem.
Printer-a device for extracting data on paper. Printers Matrix (ink tape), inkjet (ink cartridge), laser (powder toner cartridge).
Microphone-a device for entering voice Information: Voice or musical.
A Plotter or plotter is a drawing machine that allows you to draw large volumes of complex graphic images with high accuracy and speed: drawings, diagrams, maps, graphs, etc.
14. Computer memory-types, types, purpose.
Computer memory supports one of the most important functions modern computer,-the ability to long - term storage of information
Computer memory is one of the most important issues in computer design, since it supports one of the most important tasks of a modern computer - the ability to store information for a long time.
One of the main elements of a computer that allows it to function normally is memory.
All PCs use three types of memory: operational, permanent, and external (different storage devices).
The internal memory of the computer is the storage space for information on which it works. External memory (various disks) is designed to store information for a long time
The most familiar means of storing machine data used in personal computers are: RAM modules, hard drives (hard drives), floppy disks (floppy disks), CD or DVD drives, and flash memory devices.
There are two types of computer memory: internal and external. Internal memory: fast memory (RAM) and read-only memory (ROM). internal memory is called Ram-Random Access Memory. Its main purpose is to store data and programs for the tasks currently being solved. Ram ... This memory received the name" fast", since it works very quickly, so the processor practically does not need to wait while reading data from memory or writing to memory. However, the information contained in it is preserved only when the computer is turned on.
Read only memory (ROM)), in particular, stores the information necessary for the initial start of the computer when it is powered. As the name suggests, the information in the ROM does not depend on the state of the computer.
External memory is usually located outside the central part of the computer
External memory includes various magnetic carriers (tapes, discs), optical discs. External memory is cheaper than internal memory, but its disadvantage is that it runs on slower devices internal memory.
There are CD-ROMs that cannot be deleted or rewritten - discs that can be written once.
Later, rewritable laser discs were invented-CD-RW.
External memory it is implemented in the form of a very diverse data storage device and is usually systematically developed in the form of independent blocks. This should primarily include flexible and hard drives such as magnetic drives(the latter in jargon is often referred to as hard drives), as well as optical drives (devices for working with CD-ROM).
Types of memory personal computer
Cache memory... The main purpose of cache memory on a computer is to serve for temporary storage of program codes and information that is currently being processed. That is, its purpose is to serve between buffer different devices for storing and processing data
BIOS (read-only memory). The computer also has permanent memory, into which data is entered during production. Usually, this data cannot be changed, programs running on a computer can only read it.
On a computer, Only Read-Only Memory stores programs for checking computer hardware, starting OS boot, and performing basic functions for servicing computer devices. Often only the contents of the readable memory are called BIOS. The computer includes a configuration tool (SET), which allows you to install some features of computer devices (video controller types, hard drives and floppy disks, and an input-output service).
CMOS (semi-permanent memory).
a small memory space for storing the configuration parameters of the computer. It is usually called CMOS memory because this memory is usually executed in low power consumption technology.
Video memory.
video memory, that is, the memory used to store the image displayed on the monitor screen.
and permanent memory (ROM).
Computer memory external (main): flexible and hard drives, CDDVD-ROM, CD DVD-RW, CD DVD-R and internal.
Hello everyone. In today's issue, I will continue the topic of a computer device and talk about the environment... This is the second part of a long article, in the last edition we disassembled the first part of a computer device - the system unit.
If you have not read the first part of the article, I advise you to definitely familiarize yourself with it, in which I will talk about a computer device.
Computer peripherals
Well, now it's time to talk about peripheral devices, let's take a look at the most basic ones.
Mouse
The mouse is needed to move the cursor to the desired location on the desktop. There are three types of mice: mechanical, with a sphere inside; optical and laser.I remember once I used a mechanical mouse. To move the mouse cursor, it was necessary to drive with force on the rug right place desktop. There are simple cheap mice and special beautiful games. The House has a large carpet and a gaming laser mouse, which I bought at that time for about $ 50.
Keyboard
The keyboard plays an auxiliary role in managing our computer.
With it, you can write text, correspond with friends, play various games and much more. My keyboard played an important role in writing this article.
Monitor
Most likely, nowhere without a monitor. If it weren't for him, there probably wouldn't be a computer :). The display is needed to display information on the screen, which in turn goes through the video card. Monitors are divided into three groups with cathode ray tube (CRT), liquid crystal (LCD) and plasma. The latter is often used for the production of new TVs.
The average monitor diagonal starts at 15 inches and ends at 32 inches. If there are more inches, then this is already considered a TV.
Most computer users currently have LCD monitors, but CRTs are also available. I use a simple 19-inch LCD monitor, which is about 48 centimeters, almost half a meter, which suits me perfectly.
Speakers and headphones
Headphones and speakers are very important for transmitting sound from a computer to our ears. Sound card available on any computer and laptop... Most often they are installed on the motherboard.
If you have good speakers, then the audio files are of high quality and you want to listen to them with pleasure, you can purchase a separate sound card. Good sounding sounds will cost about $ 100, of course, cheaper, but why buy cheaper if it is installed on such a mother.
There are times when the internal sound card is broken. You can, of course, try soldering the connector or sound chip, but not everyone understands this. Therefore, to solve this problem, you can completely change the motherboard or buy an inexpensive external sound card.
It is advisable to use speakers made of wood, they have excellent sound transmission, but their plastic is also not bad. The more watts your speakers can give you, the clearer and louder the sound will be.
Modem
A Modem is a network device invented for accessing the Internet through it and communicating with other users.
Dial-up modems
2. Ingliz tilida sifat darajalari 3 turga bo’linadi – oddiy, qiyosiy va orttirma. Oddiy darajani 85-unit da o’tgan edik. Bugun esa qiyosiy darajani o’rganamiz. Sifatning qiyosiy darajasi ikkita narsani solishtirishda ishlatiladi va sifatga -er qo’shimchasi yoki more qo’shimchasi qo’shish orqali hosil bo’ladi.

Older / heavier / more expensive sifatning qiyosiy darajasidir.

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  Qisqa so’zlarga (ya’ni bir bo’g’inli) -er qo’shimchasi qo’shiladi:
  

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