4200773
| Pregunta | Respuesta |
| What is a computer system? | Any equipment that uses computer technology. |
| What is hardware? | Physical part of a computer system that can be touched. |
| What is software? | The programs and apps that run on the computer systems. |
| What does software do? | Follows a set of instructions to perform a task. |
| What is a four box model? | |
| What is an input device? | Any device that allows you to input data into a computing system. |
| What is an output device? | Any device that allows you to output data into any system. |
| Give 3 examples of an input device. | Any 3 from the following: Mouse Keyboard Remote Button Touch Screen Camera Microphone |
| Give 3 examples of output devices. | Any 3 of the following: Speakers Printer Projector Phone screen |
| Compete the following sentence: An input device is a device that sends..... | Data to a computer. |
| What type of device does a device use to communicate the results of data processing by a computer? A. Input B. Output C. Storage | B. Output |
| What is a five box model? | |
| Give an example of the 'process' from the 4 and 5 box model. | Central Processing Unit (CPU) |
| Give an example of the 'storage' from the 4 and 5 box model. | Any from the following: Flashdrive SD Card Hardrive (HDD) Optical Storage (CD, Bluray, DVD) Solid State Drive (SSD) |
| What is an embedded system? A. A computer system that forms part of a device that has a dedicated function B. Consistently good in quality C. A pre determined set of instructions | A. A computer system that forms part of a device that has a dedicated function |
| Name an output device for someone for special needs and explain how it would help them. | Braille printer- allowing blind people to print something off and help someone else to print something off especially for a blind person. |
| Name and input device for someone who has special needs and explain how it would help them. | Colour coded keyboard- would help people with visual impairment and learning difficulties by having her different troupe of letters and punctuation in different colours to help someone distinguish what it is they want to write. |
| Name a communication device. | Bluetooth. |
| What is the rhyme to remember the units of storage? | Big- bit Naughty - nibble (4bits) Boys- byte (8 bits) Kicked- kilobyte (1024 bytes) My- megabytes (1024 kilobytes) Granny- gigabytes (1024 megabytes) Twice- terabyte (1024 gigabytes) |
| What is the difference between RAM and ROM? | RAM non-volatile is only when a computer is off ROM volatile and can only retain dater with power |
| What does installing more RAM do? | Decreases the use of virtual memory and speeds the performance up. |
| What is virtual memory? | The area of a HDD that is used for temporary storage of data from the main memory. |
| What does ROM stand for? | Read only memory. |
| What does RAM stand for? | Random access memory. |
| What does HDD stand for? | Hard disk drive. |
| Name a ethical consideration in the i.t world. | Computer privacy- who keeps what, where, when and for how long. |
| Name a legal consideration in the I.t world | Computer misuse act-illegal to gain unauthorised access to other people's computer. |
| Name an environmental issue in the I.t world. | E-waste- where non-recyclable e-waste is dumped. |
| A HDD is an example of what type of storgae? | Magnetic storage. |
| Which of the following are an example of secondary storage? A. RAM B. HDD C. SD Card | B. HDD C. SD Card |
| What does CD stand for? | Compact disk. |
| What does CPU stand for? | Central processing unit. |
| Order the following: Decode Execute Fetch | Fetch Decode Execute |
| Describe what happens for each point in the fetch, decode, execute cycle. | Fetch- The processor fetches the instruction from the memory Decode- The instruction is decoded Execute- Processor executes that instruction |
| What is the purpose of the CPU? | To control all the other parts of the computer and process data which it does by the fetch, decode, execute cycle. |
| What is clock speed? | A rate at which instructions are carried out. |
| What is clock speed measured in? | Hz |
| What does 1GHz mean? | One billion instructions are carried out per second. |
| What does the term core refer to? | The amount of CPU'S in a computer. |
| What does the amount of cores effect? | How fast a computer can execute an instruction. |
| What is cache? | A memory that sits between the CPU and main memory that acts as a buffer and temporarily stores instructions from the main memory. |
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