Extension 2: Hardware & software Flashcards by Sara P

What are the 3 input devices?

1)Keyboard
2)Mouse
3)screen
ect

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What does the CPU contain? (3)

1)Porcessor
2)Main memory
3)Cache memory

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What are the 3 output devices?

1)SPeaker
2)Pinter
3)Projector

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What does an input do?

Enter/input data and commands to a processor

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What does an output do?

Allows users to see/hear output of processor

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What is storage?

Secondary storage devices store data/info for LT reuse. Nonvolatile, outside of CPU

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What is a CPU?

Central processing unit: the electronic circuits that execute the instructions specified in software (brain of the computer)

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What is called a computer with 2 CPUS?

Dual processor computer

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What are the 2 types of memory in a CPU?

1)Main memory (RAM)
2)Cache

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What is RAM?

Random access memory: temporary storage location that is directly accessible to the CPU. Volatile

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What is hardware?

Electronic components/related gadgetry that input, process, output, store data

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What are the types of hardware? (6)

1)Wearables
2)Personal computers
3)Tablets
4)Smartphone
5)Server
6)Server farm

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What are the 2 computer capacities?

1)Data storage volume
2)Speed

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What are bit?

computer representation of binary data

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How many bits are in a byte?

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What is the metrik for computer speed?

Hertz

Software can be… (2)

1)Operation system
2)Applications that run on operation system

What is operation system?

Program that controls computer’s ressources.

What do operation systems do?

read/write data, allocate main memory, perform memory-swapping, start/stop programs, manages user interface, respond to error

What are the 3 major operating systems?

1)Nonmobile (Windows, Macos, unix, Linux)
2)mobile (Android, IOS, windows)
3)Server (windows server, unix, Linux)

What are the 3 categories of Apps?

1)Horizontal market apps
2)Vertical market apps
3)One of a kind apps

What does application software do?

Performs service/function

What is horizontal market app?

general purpose, not customized. Provides capabilities common across all org/industries (Adobe)

What is vertical market?

Specific functions. Serve needs of specific industry

What is a one-of-a-kind app?

Developed for specific, unique needs, specific client

What are the sources of apps?

1)Off the shelf 2)Off the shelf and customized 3)Custom developed 4)open source

What are the specifics of an open source?

Open to public, no company can sell this license

What is a source code?

Computer code that is written/understood by humans

What is virtualization?

Process which one computer hosts the appearance of many computers

What are the 3 types of virtualization?

1)PC v 2)Server v 3)Desktop v

What is a virtual machine?

A host operating system that runs 1+ operating systems as apps

What is a PC virtualization?

Personal computer host different operating systems

What is server vistualization?

Server compuet host 1+ server computers. Log onto virtual machines

What is desktop virtualization?

A server that hosts multiple version of desktop operating systems. Each has a complete user environment. Ability to access your desktop from anywhere

What are native apps?

Can run just 1 operating system

What are web apps?

run in browsers on many different operating system