A system unit

A system unit is a case that contains electronic components of the computer used to process data.

The most common components are inside a system unit are:

The processor

Motherboard: The main circuit board in system unit is called the motherboard, it contains adaptor and memory chips. The mother can also be called the system board.

Chip: A chip is a small semi-conducting material where intergrated circuits can be etched. Integrated circuits have many microscopic pathways capable of carrying electric current. Chips are packed in a certain way so they can be connected to a circiut board.

Central processing unit (CPU): The CPU carries and interprets basic instructions that can operate a computer. The control unit coordinates operations in a computer. The Arithmetic logic unit (ALU) does arithmetic, comparison and logical operations. This can also be known as the processor.

Machine cycle: The machine cycle is the name of the four operations of the CPU. The first step is to 'fetch' the program instuction/data from the memory. The second step is to 'decode', which means translate the instruction into instructions. Step three is to 'execute', carry out the instruction. Finally step four is to 'store', write the result back to memory.

Stuff-contents

Integrate-to built in

portable unit-easy to carry

system unit- системный блок

peripheral devices-периферийные устройства

insert- to put in

hard disk-

currently- is

store-save, keep, maintain, hold

refer-attribute-относить

removable-съемный detachable

run out of space- lack of/shortage-нехватка места

make backup copies-делать резервную копию

average session-обычная работа (ежедневное использование)

RAM

Volatile-непостоянный

light bulb-лампочка

seal-запечатано

housing-case-корпус

fill up-make full

buzzwords-term, basic word

tap- (press and release)

Drag- move to another place

Click- press

Drop- put into/in

Keystrokes- pressing the key

shortcut keys- клавиша быстрых команд

process data- обрабатывать данные

Drive bays –отсек для дисковода
Power supply – блок питания
circuit board- схемная.монтажная плата

semi-conducting-полупроводниковый

etched –отсоединить

pathways-разводка цепей, проходы

Central processing unit (СРU)-процессор

control unit-блок управления

The Arithmetic logic unit-арифметическое логическое устройство

Machine cycle-машинный цикл