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- 1computer hardware-consists of electronic components that input, process, output and store data according to instructions encoded in computer programmes and software
- 2central processing unit (CPU)-every computer has one
-sometimes called the brain of the computer
-selects instructions, processes them, performs arithmetic and logical comparisons and stores results of operations in memory
-computer can have two or more CPU
-->dual-processor
-->quad-processor (4)
-vary in speed, function and cost
-works in conjunction with main memory
-->reads data and instructions from memory and then stores the result of computations in main memory
-main memory also called RAM (random access memory)
-expressed in cycles called hertz
-->Moore's law: CPU speed continually increases - 3storage hardware-all computers include one
-used to save data and programmes
1.magnetic disks = hard disk: most common
2.solid-state storage = SSD drive: much faster & expensive than hard drive
3.USB flash drive: small, portable solid-state storage device
4.optical disks= CD, DVD - 4server-is a computer designed to support processing requests from many remote computers and users
-->essentially a computer on steroids
-server and client relationship
--> requests info such as web pages, email etc - 5server farm-a collection of thousands of servers
-server infrastructure delivered as service via internet = the cloud
-provides information to other computers - 6binary digits-computers represent data with it
-also called bits
either zero or one
-all forms of computer data are represented by bits
-->numbers, characters, photos, currency amounts = string of bits - 7computer data sizes
- 8volatile & nonvolatile-a device's cache and main memory are volatile=their contents are lost when power is off
-magnetic and optical disks are nonvolatile= contents survive when power is off - 9computer disk capacity.
- 10hertz-CPU speed measured in cycles
-slow personal computer3.0 Gigahertz
-fast PC >3.5 GHz - 11new hardware affects competitive strategy-new hardware represents potential opportunities
-potential to disrupt existing organisations:
1.Internet of Thing (IoT)
2.Self-driving vehicles
3.§D Printing - 12—
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- MIS - Management Information System Karteikarten am Ohne Titel, erstellt von A K am 18/09/2018.
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