Computer Hardware Flashcards
What does the bus width determine
It determines the speed at which data travels
And is also referred to as the word size
What is a device driver
A device driver is a program that controls a device attached to the computer, such as a printer, monitor or video card
What is a binary system
A number system with two digits, 0 and 1 known as a bit (binary digit)
What does the binary digit 0 indicate
Its indicates the absence of an electronic charge
What does the binary digit 1 indicate
It indicates the presence of an electronic charge
What is a binary digit
The smallest unit of data a computer can process
What forms a byte
When 8 bits are grouped together, they form a byte
What can a byte represent
A single character in a computer or mobile device
Which of the following devices is easiest to upgrade, such as by adding RAM
A. Tablets
B. Desktop computers
C. Laptops
D. Smartphones
B. Desktop computers
What are input devices
Communicate instructions and commands to a computer.
Examples
Keyboard, mouse, stylus, scanner, WebCam, microphone and game controller
What are output devices
Conveys information from the computer to the user
Examples
Speakers, headphones, projectors, and printers
What is the CPU
It is a complex integrated circuit consisting of millions of electronic parts and is -
primarily responsible for converting input data into meaningful output information
A computer typically connect to a router via a
Network Interface Card
In order to support file sharing, your PC must run a network operating system.
True or False
False
Modern processors often have ___ levels of cache
3 levels
Random access memory is a permanent storage location.
True or False
False
Solid state hard drives are a type of ___ memory
Flash memory
The root directory is the main list of
Files and folders on the drive
RAID stands for?
Redundant array of independent disks
Cloud storage is
An internet service that provides remote data storage. A safe and easy way to back up files
Good for sharing links to large files
The main categories of software are
System software
Application software
Development software
What are the main categories of system software
Utilities and operating systems
What does an optical character recognition perform
An optical character recognition convert scanned documents into editable text
What are the components of a computer
CPU, memory, storage devices, input and output devices
What steps do instructions executed by the CPU go through
- Fetch
- Store
- Decode
- Execute
Name the different types of memory
RAM random access
ROM read only
VM virtual
Virtual memory
Virtual memory is an area of the hard disk that stores overflow data from RAM
Name two popular text coding schemes
Unicode - It is a 16 bit coding scheme
ASCII - it is an 8 bit coding scheme
