This is an audio version of the Wikipedia Article:
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00:01:17 1 Von Neumann architecture
00:02:17 2 Types of computer systems
00:02:27 2.1 Personal computer
00:02:54 2.1.1 Case
00:04:12 2.1.2 Power supply
00:04:38 2.1.3 Motherboard
00:07:28 2.1.4 Expansion cards
00:07:57 2.1.5 Storage devices
00:08:31 2.1.5.1 Fixed media
00:09:09 2.1.5.2 Removable media
00:09:35 2.1.6 Input and output peripherals
00:09:57 2.1.6.1 Input
00:10:25 2.1.6.2 Output device
00:10:45 2.2 Mainframe computer
00:11:11 2.3 Departmental computing
00:11:34 2.4 Supercomputer
00:13:15 3 Hardware upgrade
00:14:11 4 Sales
00:14:50 5 Recycling
00:15:57 5.1 Toxic computer components
00:16:34 5.2 Environmental effects
00:17:45 5.3 National services
00:18:19 6 See also
00:18:45 7 Sources
00:18:54 8 External links
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Speaking Rate: 0.9540894130065114
Voice name: en-US-Wavenet-B
"I cannot teach anybody anything, I can only make them think."
- Socrates
SUMMARY
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Computer hardware includes the physical, tangible parts or components of a computer, such as the cabinet, central processing unit, monitor, keyboard, computer data storage, graphic card, sound card, speakers and motherboard. By contrast, software is instructions that can be stored and run by hardware. Hardware is so-termed because it is "hard" or rigid with respect to changes or modifications; whereas software is "soft" because it can be easily updated or changed. Intermediate between software and hardware is "firmware", which is software that is strongly coupled to the particular hardware of a computer system and thus the most difficult to change but also among the most stable with respect to consistency of interface. The progression from levels of "hardness" to "softness" in computer systems parallels a progression of layers of abstraction in computing.
Hardware is typically directed by the software to execute any command or instruction. A combination of hardware and software forms a usable computing system, although other systems exist with only hardware components.
