Karteikarten
Revision Que cards (COMPUTING)
Karten in diesem Stapel (14)
- 1What is hardware?Hardware is the physical components such as a keyboard, mouse, monitor, hard disk, printer, scanner, webcam or anything else you can touch.
- 2What is software?Software is the programs, including both the operating system and any application software, such as spreadsheet or presentation software.
- 3What are input devices?Input devices are used to put data into the computer. Keyboards, mice and webcams are examples of input devices.
- 4What is the purpose of the CPU?to fetch, decode and execute instructions from the main memory.
- 5Describe what is meant by '3MHz'.3 million instructions per second.
- 6Describe what is meant by 'quad core'.it means that the device has four CPU's.
- 7What does RAM stand for?Random Access Memory
- 8Name 3 things you can find computer systems in?Mobile Phone, Washing Machine and a Petrol Pump.
- 9What type of hardware device is this?Storage Device.
- 10What kind of device is this Iphone 6 screen? Explain?Input and Output, this is because you can input information into the screen by typing but it is also an output device because it shows you what it is on the screen.
- 11A computer has 1024 MegaBytes of RAM? How many GigaBytes of RAM does the computer have?1GB
- 12Describe what is meant by 2.4GHz CPU?2.4 billion instructions processed per second (how many clock cycles per second) clock speed/how fast the processor is.
- 13Explain how CACHE memory improves performance?CACHE memory is located close to the CPU, instructions loaded into CACHE from RAM, the CPU can execute instructions quicker. Speed up Fetch, Decode and Execute cycle.
- 14Explain the difference between count controlled and conditional loops?Count controlled loop- for loop in Python- loop/iterate a set amount of times.
Conditional loop-while loop in Python- loop/iterate until a condition is true/met.
Informationen
- Beschreibung
- Revision for devices to know what they are
- Erstellt von
- top sessioner · Dez 2015
- Aktualisiert
- 19 Feb 2016
- Aufrufe
- 2
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