Lesson 3 Flashcards

1
Q

A special machine that performs task, such as calculations, data processing, and handling

A

Computer

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2
Q

Computer is under the control of a set of instructions

A

Program

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3
Q

It usually reside within a computer and are retrieved and processed by the computer’s electronics

A

Program

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4
Q

A microprocessor chip that is a single piece of silicon containing millions of tiny microscopically wired electrical components

A

CPU / Central Processing Unit

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5
Q

Information is stored in a CPU memory location

A

Register

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6
Q

Thought as the CPUS tiny scratchpad, temporarily storing instructions or data

A

Register

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7
Q

It keeps track of which program instructions comes next by maintaining memory location

A

Program counter

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8
Q

Determines what the instruction will do

A

Decoder

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9
Q

The entire sequence of steps is called an

A

Instruction Cycle

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10
Q

Four Main Functions of a Computer

A

Accepts data
Processes data
Produces output
Stores results

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11
Q

A device that are both output and input

A

Touchscreen

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12
Q

Example of a 3d printer

A

Cloud printer

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13
Q

Example of impact printer

A

Dot matrix printer

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14
Q

A volatile; stores current data and programs; the more of it, the faster system

A

RAM

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15
Q

Meaning of RAM

A

Random Access Memory

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16
Q

A memory device:
Permanent storage of program; hold the computer boot directons

A

ROM / Read Only Memory

17
Q

ROM means

A

Read Only Memory

18
Q

Example of memory device

19
Q

It holds data and program permanently; different from RAM

A

Storage Device

20
Q

Floppy and hard drive

A

Magnetic Storage

21
Q

Uses a magnet to access data

A

Magnetic Storage

22
Q

This storage example is CD and DVD drives

A

Optical Drives

23
Q

Uses a laser to access a data

A

Optical storage

24
Q

Vary enormously in their computational power, speed, memory, and physical size.

A

Programmable computers

25
Small computers tha can be held in one hand are called
PDA / personal digital assistants
26
An example of small computer
Hand held game devices
27
These are used in businesses and at homes to communicate in computer networks, for processing, to track finances, and for entertainment
Portable laptop, netbook, desktop pc
28
Have more memory, speed and capabilities than workstations and usually shared by multiple users through a seried of interconnected computers
Mainframe computers
29
They are used to control businesses and industrial facilities and are used for scientific research
Mainframe computers
30
What are the types of computers
Digital Analog
31
It refers to the processes in computers that manipulate binary numbers (0s or 1s) which represent the switches that are turned on or off by electrical current
Digital
32
It refers to circuits or numerical values that have a continuous range
Analog
33
What type of computer: Both 0 and 1 can be represented by _____ but so can 0.5, 1.5 or pi (3.14)
Analog
34
What type of computer: A bit can have the value 0 or the value 1 but nothing in between 0 and 1
Digital