Computing flashcards

What is the input function in computing?

Computers take in information through various channels such as microphones, keyboards, mice, and touchscreen input. This information is converted from continuous analog data to digital binary data.

What does the CPU do?

The CPU is the 'brains' of a computer. It makes mathematical calculations to interpret any input and decide on an appropriate output.

How does the GPU differ from the CPU?

A GPU is similar to a CPU but can perform thousands of small calculations in a linear fashion, primarily used for rendering 3D graphics and AI model training.

Define storage in computing.

Storage refers to the process of saving data on a computer for future use. It ensures data is not lost immediately after it is created or entered.

What are RAM and ROM?

RAM (Random Access Memory) is used to store data temporarily and can be quickly accessed. ROM (Read-Only Memory) is used to permanently store data.

How do SSDs and HDDs differ?

SSDs (Solid State Drives) store data on flash memory chips for long-term use. HDDs (Hard Disk Drives) use spinning disks to store data.

Explain the significance of output in computing.

Output is the information relayed to the user from the computer, thus allowing users to understand computational decisions and data processing.

Define bandwidth.

Bandwidth is a range of frequencies within a given band used for transmitting a signal.

What is DNS?

DNS (Domain Name System) translates domain names into numerical IP addresses, often referred to as the 'phonebook' of the internet.

Describe network protocols.

Network protocols are rules that define how connected devices communicate across a network to exchange information easily and safely.

What is network topology?

Network topology refers to the physical and logical arrangement of nodes and connections in a network, such as bus, star, and ring topologies.

Explain errors and error testing in programming.

There are three code errors: syntax errors, runtime errors, and logic errors, each requiring specific methods to detect and correct.

What is a network packet?

A network packet is a formatted block of data transmitted over a network.

What is a syntax error?

A syntax error is a mistake in the software language code that prevents it from being understood by the computer.

Define logic error.

A logic error doesn’t stop the program from running but results in incorrect outputs, requiring thorough testing to identify.