Computers and hardware

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What are the main types of computer?
Mainframe, desktop, laptop, netbook, PDA, smartphone.
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What are the advantages of a laptop?
1) Portability 2) Users can work anywhere, compact.
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What are the disadvantages of a smartphone?
1) Keyboards are small 2) Screen size makes it difficult to read long documents 3) Costs can be high 4) Some webpages or browsers might not function entirely.
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What are the advantages of a mainframe computer?
1) Capable of processing very big jobs 2) Capable of storing complex problem-solving that would take smaller computers much longer to do.
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What are the disadvantages of a mainframe computer?
1) Mainframes are so large that they take up the whole room 2) They are complex to set up 3) Expensive to operate and maintain as it requires specialist technicians to operate.
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What are the advantages of a PC (desktop or personal computer)?
1) Spare pars are often cheap because they are standardised 2) They often have faster processors than laptop 3) There are fewer problems with overheating.
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What are the disadvantages of a laptop or notebook?
1) Prone to loss and theft 2) Battery life is limited 3) Keyboards and pointing devices are not as flexible as PC’s 4) Laptops can overheat easily.
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What are the disadvantages of a netbook?
1) Screens are smaller and may not display as effectively as large computers 2) Keyboards are small, which can make them difficult to use over long periods of time 3) Netbooks don't have CD/DVD drives
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What are the advantages of a PDA?
1) Extremely portable 2) Bigger screens than cell phones 3) Web and email connectivity 4) Have a QWERTY keyboard 5) Designed for organising information.
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What are the disadvantages of a PC?
1) Lack of portability 2) Files have to be copied and stored on portable discs.
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What are the advantages of a netbook?
1) Extremely portable 2) Often very cheap.
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What are the advantages of a smartphone?
1) Online access to data 2) Good web browsing 3) One device accomplishes many tasks at home or at work 4) One can integrate contacts’ details.
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What are the disadvantages of a PDA?
1) Keyboards are very small making it hard to type 2) Screen sizes make it difficult to read documents 3) Versions of software that have a limited range of functions may make it difficult to complete tasks effectively.
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What are the devices attached to a computer called?
Peripheral devices.
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What is system software?
Programs and files that make up the computer’s operating system.
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What is applications software?
It’s also known as the applications programs, and allow users to use different programs that provide a service for use, such as spreadsheets, blank documents, database software, etc.
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What does CPU stand for and what does it do?
CPU = Central Processing Unit, and it: 1) interprets and executes commands from the computer’s hardware and software 2) Monitors the output, input and storage devices. 3) Has a single integrated circuit, that involve control of the entire device
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What is another name for CPU?
Microprocessor
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What are other names for the main memory?
Internal, central or primary memory.
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What 2 types of central memory are there?
RAM and ROM
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What do RAM and ROM stand for?
Random Access Memory and Read Only Memory
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What are the characteristics of RAM?
1) Can be both read and written to 2) Volatile, because contents are lost 3) It has more memory 4) The memory used when running programs 5) Data is temporary
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What are the characteristics of ROM?
1) Can’t be read or written to 2) Permanent memory is used to store the start-up processes 3) Retains its contents when power is turned off 4) Also called non-volatile or permanent memory 5) Contains BIOS to run the startup file
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What does BIOS do?
What does BIOS do? 1) Checks that all the hardware devices are attached and working 2) Copies the operating system to RAM 3) stores the data, time and system configuration on a non-volatile chip called CMOS (Complementary Metal Oxide Semiconductor)
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What does BIOS stand for?
Basic Input and Output System
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What are input devices?
Those that are used to put information into the computer.
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What are output devices?
Those that take information from the computer or other devices.
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Other cards in this set

Card 2

Front

What are the advantages of a laptop?

Back

1) Portability 2) Users can work anywhere, compact.

Card 3

Front

What are the disadvantages of a smartphone?

Back

Preview of the front of card 3

Card 4

Front

What are the advantages of a mainframe computer?

Back

Preview of the front of card 4

Card 5

Front

What are the disadvantages of a mainframe computer?

Back

Preview of the front of card 5
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