3 utility programs c data ware the systematic and

3. Utility Programs
C. Data ware . The systematic and organized collection of data and procedures relevant to the
organization
D. People ware. Refers to personnel who manage and use the computer system, who design the
applications and systems software, who write and encode the programs and who run the hardware.
Computer Basic Operations
Input is whatever goes into the computer. Input
can take a variety of forms, from commands you enter by
keyboard to data from another computer (via a network
connection) or device (via direct or network connection). A
device that feeds data into a computer, such as a keyboard
or mouse, is called an input device .
Output is any information (data) that comes out of a computer. Output devices can be other
computers, display screens, speakers, and printers.
Storage
Computer data storage is referred to as storage or memory, which can save digital data. Examples
are RAM, hard disks, CDs, DVDs and removable flash memory sticks.
Permanent, or non-volatile, storage devices do not require power to remember the data stored.
Mass storage devices, like hard disk, are non-volatile; a loss of power does not affect their ability to retain
data. This category also includes ROM (Read Only Memory).
Temporary or volatile storage is more often called "memory". A loss of power means that any data
stored will be lost irretrievably. When you are using an application, such as a word processor, the data
(the document you are working on) is stored in RAM (Random Access Memory). If you lose power without
explicitly saving your work, you will likely lose data.
Processing
The processor is the brain of a computer. It's also called the CPU (Central processing unit) and it is
a microchip. For a non-programmer, this is where all the real action is. Programs just set the stage and
direct the play. (In this off hand analogy, the play itself, in written form, would be most like a program.)

COMPUTER SYSTEM SERVICING 7/8
K-12 –TECHNOLOGY AND LIVELIHOOD EDUCATION
The processor actually performs very simple operations like basic arithmetic and comparing two
values (but that may be like saying a stage actor just speaks, moves and emotes).
Despite it's apparent simplicity, the CPU does in fact run the show, controlling all of the
peripherals while executing the current software commands.
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