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Did you

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by

Yulia Kosinchar

on 18 June 2014

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Transcript of Did you

This is a image of a type of a microprocessor.(There is more then one type).
A microprocessor is a small electronic device that can carry out complex calculations in the blink of an eye. You can find microprocessors in many devices you use each day, such as cars, refrigerators,and televisions. The most recognized device with a microprocessor is the personal computer, or PC. In fact, the concept of a computer has become nearly synonymous with the term PC.
What is a microprocessor?
The computer brain is a microprocessor called the central processing unit (CPU). The CPU is a chip containing millions of tiny transistors. It's the CPU's job to perform the calculations necessary to make the computer work. The transistors in the CPU manipulate the data. You can think of a CPU as the decision maker.
The computer brain(hardware).Part 2,the microprocessor.
In this article I am defining a PC as a more general computing device with these characteristics:

designed for use by one person at a time
runs an operating system to interface between the user and the microprocessor
has certain common internal components, like a CPU ,and RAM
runs software applications designed for specific work or play activities
allows for adding and removing hardware or software as needed
Characteristics of a PC.
Did you ever wonder why ,or how the computer works?
The components are divided into two main categories: the brains and the guts,(also called the software,and the hardware.) The brains(hardware) of the computer include all the elements that allow the computer to process data. The guts(software) include all the other elements that make computers useful, but aren't directly involved in computing information.(A computer has brains,and guts that sounds a little funny to me.)
Two main parts of a computer.
The ROM,and RAM.
The computer brain(hardware).Part 1,the motherboard.
A chip called the Basic Input/Output System (BIOS) works closely with the CPU. BIOS is a specific kind of ROM. If you think of the CPU as the brain of the computer, then you might consider BIOS to be the spine. It's the job of BIOS to handle interactions between the software running on a computer and the machine's hardware components.
The computer brain(hardware).Part 4,the BIOS.
The word computer.
The word computer refers to an object that can accept some input and produce some output. In fact, the human brain itself is a sophisticated computer, and scientists are learning more about how it works with each passing year. Our most common use of the word computer is to describe an electronic device containing a microprocessor.
The power supply component provides a supply of electricity throughout the rest of the computer. When you plug your computer into a power socket, electricity flows from the cord into a shielded box containing a transformer. The transformer's job is to convert the incoming electricity into the proper voltage for each part of the machine that needs electricity. If you're using a laptop, some of that power goes to the laptop's battery to charge it. When unplugged, a laptop has to rely on the charge inside the battery for its power needs.
Computers have a small battery inside them that's always on, even when you power down the rest of the computer. This battery helps preserve data stored in a special chip in charge of maintaining information about your computer's hardware. It also powers a clock, which is why your computer should keep time accurately even if you turn it off or unplug it.
The drives in a computer are the devices that let you store and recall data and applications. Most computers have a hard drive.Either a series of thin platters that store information using magnetic recordings or a solid state flash hard drive with no moving parts. In either case, the hard drive allows you to store information and applications directly to your computer.
BRAINS=
HARDWARE
GUTS=
SOFTWARE
The base of operations for the brains (hardware) of a computer is the motherboard. The motherboard serves as a literal foundation for many of the other elements inside your computer. It's a large printed circuit board. The motherboard provides the connections and sockets that let other components communicate with each other. Motherboards come in different shapes and sizes.A motherboard in a laptop computer might not look like one from a desktop PC.
The CPU.
The computer brain(hardware).Part 3,the RAM,and ROM.
ROM
RAM

Another critical component in computers is memory. The two most important kinds of memory are read-only memory (ROM) and random access memory (RAM). Computers can read data stored in ROM, but can't write new data to it. With RAM, computers can read from and write to that memory. Without computer memory, every calculation on a computer would be stateless. That means there'd be no way to preserve information from one moment to the next and every process would start on a clean slate. That's not useful if you want to create complex programs.
Many desktop PCs have the capacity for additional RAM. The user simply has to open the computer and plug RAM chips into the appropriate sockets on the motherboard. But other computers are sealed systems -- you aren't meant to open them and make changes so you're pretty much stuck with what you've got.
Another critical component in computers is memory. The two most important kinds of memory are read-only memory (ROM) and random access memory (RAM). Computers can read data stored in ROM, but can't write new data to it. With RAM, computers can read from and write to that memory. Without computer memory, every calculation on a computer would be stateless. That means there would be no way to preserve information from one moment to the next and every process would start on a clean slate. That's not useful if you want to create complex programs.
Many desktop PCs have the capacity for additional RAM. The user simply has to open the computer and plug RAM chips into the appropriate sockets on the motherboard.However,other computers are sealed systems.You aren't meant to open them and make changes so you're pretty much stuck with what you've got.
The computer's guts(software).Part 1,the power supplies,and batteries.
The drives in a computer are the devices that let you store and recall data and applications. Most computers have a hard drive -- either a series of thin platters that store information using magnetic recordings or a solid state flash hard drive with no moving parts. In either case, the hard drive allows you to store information and applications directly to your computer.
Older computers used floppy disk drives. Newer computers have optical storage drives like CD-ROM or DVD-ROM drives. These drives allow you to use media storage devices like compact discs or DVDs with your computer.
The computer's guts(software).Part 2,the drives.
Modems are machines that let computers communicate with other computing systems. Modems are closely related to wireless cards, which are radio transceivers that can send and receive data through a specific frequency of radio waves.
The computer's guts(software).Part 3, the Modems and Wi-Fi cards.
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