01 Basic architecture 02 Types of computers 03 Input devices 04 Output devices 05 Memory devices

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01  Basic architecture of a computer

Vocabulary

Definition Translation
ALU
Arithmetic Logic Unit
a part of the CPU which performs the actual arithmetic and logical operations asked for by a program aritmetická jednotka
bus an electrical channel which carries signals between units inside the computer sběrnice
control unit a part of the CPU which coordinates all the other parts of the computer system řadič, řídicí jednotka
CPU
Central Processing Unit
the hardware unit that performs the basic operations of a computer, the ´brain´ of the computer procesor
disk drive a device that reads and writes data on disks disková mechanika/jednotka
DVD a Digital Versatile Disc that uses optical technology to store large amounts of audio-visual material digitální všestranný disk
expansion slot a connector that allows the user to install expansion cards to improve the performance of the computer (add features like sound, memory, network capabilities) rozšiřující slot, rozhraní
hardware the physical units which make up a computer system technické vybavení počítače
input devices hardware units which allow user to enter information to the computer vstupní zařízení
keyboard an input device, a set of keys including the standard typewriter keys (for letters and numbers), function keys and several special keys klávesnice
main memory the hardware section that holds the instructions and data currently being processed hlavní/operační paměť
modem a device that converts digital signals used by computers into the analogue signals used by the telephone lines and allowing the access to the Internet modem
modulator demodulator
monitor an output device with a screen on which words and pictures can be shown, also called a display screen obrazovka, monitor
mouse an input device used to specify the position of the cursor or to make choices from menus myš
output devices the units of hardware that display the results produced by the computer výstupní zařízení
peripherals the units attached to the computer, I/O devices, storage devices periferní zařízení
printer an output device that converts data into printed form tiskárna
router a device used to transmit data between two computers or networks. směrovač, router
software the set of program instructions that tell a computer what to do programové vybavení
storage device a hardware device used to record and store data paměťové zařízení
USB
A Universal Serial Bus
a hardware interface that allows peripheral devices to be easily connected to a computer univerzální externí sběrnice
USB port a USB socket on a computer device into which you can plug a USB cable konektor USB


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