chapter 02
Organizations invest in computer hardware to:
Improve worker productivity
Increase revenue, reduce costs
Provide better customer service
all of above
Green computing is
– Concerned with the efficient and environmentally responsible design, manufacture, operation, and disposal of IS-related products
– Applies the power of the computer to solve problems and perform specific tasks
– Use of computing resources on the Internet (the cloud) rather than on local computers
– Can reduce expenses by sharing its running applications among many businesses
Application software is
– Applies the power of the computer to solve problems and perform specific tasks
– Consists of programs that control the workings of the computer hardware
– Set of computer programs that controls the computer hardware to support users’ computing needs
– Set of integrated programs that manage a company’s vital business operations for an entire multisite, global organization
Utility Programs is
• Help to perform maintenance or correct problems with a computer system
• Some can help computer systems run better and longer without problems
• Can help to secure and safeguard data
all of above
Operating Systems
Get input from keyboard or another input device
Can be used to prevent unauthorized disclosure of information
– Can be used on many computer system types and platforms
all of above
Green Computing Concerned with
– Enable companies to lower their power-related costs
– Reduce the use of hazardous materia
– Enable the safe disposal or recycling of some 700,000 tons of computers each year
Efficient and environmentally responsible design, manufacture, operation, and disposal of IS-related products
Input Devices
Personal computer input devices
Organic light-emitting diodes (OLEDs)
Plasma display
non of above
Computer System Types :
Portable Computers
Nonportable
Multiple-User Computer Systems
all of above
Software as a service (SaaS):
– Consists of programs that control the workings of the computer hardware
– Can reduce expenses by sharing its running applications among many businesses
– Manages tasks to allocate computer resources through multitasking and time-sharing
– Applies the power of the computer to solve problems and perform specific tasks
Access Methods :
Direct access
Sequential access
Random access
A and B
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