Flashcards
Computer hardware, memory and storage
Flashcards do conjunto (17)
- 1WHAT IS A COMPUTER SYSTEM?A collection of hardware and software that work together.
- 2WHAT DOES RAM STAND FOR AND WHAT DOES IT DO?Random Access Memory. Used to store program instruction and data that are currently being used by the processor.
- 3WHAT DOES ROM STAND FOR AND WHAT DOES IT DO?Read Only Memory. retains data even when the power is switched off.
- 4WHAT DOES THE MOTHERBOARD HOLD?Holds both the Processor and RAM.
- 5WHAT DOES THE PROCESSOR (CPU) HOLD?The purpose of a processor is to process data by executing instructions.
It coordinates other parts of a computer system. - 6WHAT DOES A HARD DISK DO?stores data.
- 7WHAT IS CLOCK SPEED AND WHAT IS IT MEASURED IN?it represents the number of instructions the cpu can perform and it is measured in HZ.
- 8WHAT DOES DUAL CORE AND QUAD CORE MEAN?dual core - can perform two tasks
quad core - can perform four tasks simultaneously. - 9WHAT IS CACHE MEMORY AND HOW DOES IT IMPROVE A CPU?it is high speed memory in the cpu and it improves the operating speed by storing frequently used instructions.
- 10WHY ARE OUTPUT DEVICES NEEDED?to communicate the result of processed data.
- 11WHY IS SECONDARY STORAGE NEEDED?to store large amounts of data and programs that are not running on the cpu.
- 12WHAT IS THE FETCH-EXECUTE SYSTEM?fetches instructions from main memory.
decodes the instruction.
executes the instruction. - 13WHY ARE INPUT DEVICES NEEDED?to send control signals to the computer.
- 14WHAT FACTORS SHOULD YOU CONSIDER WHEN SELECTING A SECONDARY STORAGE DEVICE?how much it costs, portability, durability, speed and how much storage it has.
- 15NAME THE USE, ADVANTAGES AND DISADVANTAGES OF MAGNETIC STORAGEuse - in hard disks in computers.
advantages - very reliable, high capacity, low cost.
disadvantages - not portable, not very durable, has moving parts. - 16NAME THE USE, ADVANTAGES AND DISADVANTAGES OF OPTICAL STORAGEuse - transfers files, distributing software
advantages - low cost, light weight, portable.
disadvantages - limited capacity, bad durability can be easily scratched. - 17NAME THE USE, ADVANTAGES AND DISADVANTAGES OF SOLID STATE MEMORYuse - found in cameras and phones.
advantages - no moving parts, durable, large capacity, high read/write speed.
disadvantages - more expensive.
Informações
- Descrição
- These flashcards are all about computing memory, hardware and storage.
- Criado por
- Sienna Kirk-Carver
- Visualizações
- 10
- Avaliação