Flashcards
Computer tech exam
Flashcards do conjunto (20)
- 1Computer caseWhere internal components are stored, two types AT (two power connectors, motherboard and cpu) ATX (one power connector, motherboard)
- 2Power Supplies(Converts the 120v AC from the outlet to 12 or 5VDC) for the computer components. make sure it can supply enough wattage for the components 500w is usually good unless you have a good video card then you will need 700w
- 3MotherboardIts the skeleton and circulatory system of a computer, (distributes power and information)
- 4BIOS(basic input/output) controlls the startup prossess and the flow of data.
- 5CMOSthe BIOS stores some settings in the CMOS, its a battery powered semi conductor chip
(stores info) - 6UEFI(does the same job as BIOS but better)
supports larger dive sizes up to 9 zettabytes, faster boot time, more discreate, its more secure, you can use a mouse - 7CPU(brain of the computer makes the decitions)
>1billion transistors all on one chip, the processing operations are done on it, moves fast, creates heat - 8system clockits a quartz crystal, for every tick the CPU does one function/step,
ex 3ghz does 3 billion ticks per second - 9buses(move the info around the motherboard)
adress bus, data bus, control bus, power bus - 10Data bussesmoves data or instructions around
the width determines the speed
its determined by bits (8,16,32,64) - 11address busidentifies the source/destination of data, width determines the max memory capacity
- 12Control buscontrols the timing of information, memory read/write signal, interrupts requests, clock signals
- 13how do buses work?The address bus carries the
location of the data
The data bus carries the
data
The control bus coordinates
the transfer - 14system buscombines the functions of the three busses
- 15expanation slotsa connector where you can add better video cards, sound cards, network cards
- 16video cardsimproved graphics to a monitor
(has its own possessor and memory, renders 2d and 3d graphics) - 17RAMprovides high-speed, short-term memory for your computer's CPU.
- 18Hard drivesprovides lots of non-volatile storage
core component is the OS
the HDs determine the efficiency - 19ssd vs hddsolid state drive : more commune, smaller and faster, noiseless
HDD more commun in older computers - 20hard drivesIDE, SCSI, SATA, magnetic storange of inf
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- Grade 10 Computer Studies FlashCards sobre Computer tech exam, criado por Janine Woodley [Student] em 25-06-2023.
- Criado por
- Janine Woodley [Student]
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