Hardware Flashcards
What does a graphic do?
A graphic card is a computer hardware component that displays and renders graphics on a computer screen or monitor.
List the types of RAMS you know.
DRAM: that stores data in capacitors and needs to be refreshed constantly to store its data.
SRAM: stores data in transistors and does not need to be refreshed constantly to store its data.
Hybrid RAM: It combines features of the DRAM and Static RAM
Differentiate between an ECC RAM and a RAM?
RAM is the primary storage of a computer that stores data and the instructions of currently running programs temporally, while an Error Correcting Code RAM, is a type of RAM capable of detecting and correcting single bit errors that may occur during data transfer or storage
What is the BIOS?
It is firmware that controls the hardware components of a computer and makes it possible for them to communicate with the operating system and each other.
What are the three main functions of the BIOS?
-> It searches for the OS from the hard drive and boots it into the computer
-> It initializes hardware components like the RAM, CPU, e.t.c
-> It provides basic Input and Output Operations, such as reading and writing
What are the types of ROM?
ROM(written only by the manufacturer)
PROM(written once by user)
EPROM(written multiple times and erased with uv-like)
EEPROM(written multiple times and erased electrically using an external device)
Flash PROM
What are two characteristics of a hard disk?
It stores data permanently meaning it is non-volatile
It can store large amounts of data
Differentiate between software and hardware.
Software is the programs and applications that run on the computer, they are instructions that tell the computer what to do. e.g System software(OS) and Applications(Games)
Hardware is the physical components of the computer, that is tangible components that we can see and touch e.g Input and Output devices like keyboards and monitors respectively
What is a peripheral device?
This is computer hardware connected to the computer to extend its functionality e.g. Mouse, Microphone, Speakers, etc.
What does the CPU do?
The CPU processes data to turn it into information, executes instructions and calculations to enable the operation of the computer and its applications
What is a port?
It is a physical interface or socket on the computer that allows other devices to connect to it
Why do computers need hard drives?
-> To store programs and the operating system
-> To act as a large, non-volatile storage space
-> To store data, files, and documents
-> To act as virtual memory when the ram is full
Which hard is the most commonly used in the Input phase of a CBIS?
Mouse and Keyboard
What are the most common measuring units in a computer?
bits => for data
Herts => for processor clock speed
What component is used to both read and write data in the computer?
The read-write head of an HDD or SDD
