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brunyee.c18
Flashcards by brunyee.c18, updated more than 1 year ago
brunyee.c18
Created by brunyee.c18 over 5 years ago
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What is a computer system? A computer system is able to take a set of data inputs, process them and produce outputs. it does this using hardware and software
Define and input device. It is used to enter data into a system.
Name 5 input devices? 1. keyboard 2. microphone 3. web cam 4. touch screen computer 5. scanner
Define and output device. An output device is used to produce the results of data processed by the computer.
Name 5 output devices? 1. printer 2. headset 3. computer screen 4. webcam 5.speakers
RAM what does it stand for? random access memory
ROM what does it stand for? read only memory
what does volatile mean? Volatile means when the computer is switched of the contents of the RAM are lost.
RAM or ROM which is volatile? RAM is volatile and stores data ands instructions.
What is hardware? Computer hardware is the physical parts of a computer such as the keyboard or mouse.
what is software? Software is the programs used by the computer for example windows 8.
Memory order? bit = big = binary digit nibble = naughty = 4 bits byte = boys = 8 bits / 2 nibbles kilobyte = kicked = 1024 bytes megabytes = My = 1024 kilobytes gigabytes = granny = 1024 megabytes terabytes = twice = 1024 gigabytes
If a computer has a clock speed of 4GHz how many instructions can it carry out per seconds? 4 billion
If a computer has a clock speed of 2.4 MHz then how many instructions can it carry out per second ? 2.4 million
what type of storage would be most common in a computer tablet? SSD (solid state drive)
Hannah is a university student she needs to carry lots of work between school and home what would be the most suitable storage device to do so? Cloud Storage
What does the NOT gate do? The not gate take the input information and outputs the opposite.
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