Monitors are the most common output device and include CRT and LCD displays. CRT monitors have a glass screen but produce heat and take up more space, while LCD monitors are smaller, lighter and use less power but are more expensive. Printers can produce physical copies and include laser, inkjet, and dot matrix printers. Laser printers use toners to produce high quality output quickly but are expensive, while inkjet printers use cartridges but offer cheaper printing in color or black and white. Dot matrix printers are not common now but were cheap to run and good for multiple copies. Other output devices include speakers, projectors, and providing instructions to devices like robots.
The clock speed of computers is usually measured in megahertz (MHz) or gigahertz (GHz). One megahertz (MHz) represents one million cycles per second, while one gigahertz (GHz) represents one billion cycles per second. A microprocessor that runs at 200 MHz would execute 200 million cycles per second. Faster clock speeds allow microprocessors to perform more instructions per second, making the computer run faster. However, other factors also influence a computer's overall speed.
Here are the key features of tables, queries, forms and reports in Microsoft Access:
A. Table
B. Query
C. Form
D. Report
2
A __________ extracts and
summarises information from one or
more tables.
A. Table
B. Query
C. Form
D. Report
3
A __________ provides an easy way
to view and enter information into a
database.
A. Table
B. Query
C. Form
D. Report
4
A __________ summarises
information from the database.
A. Table
B. Query
C. Form
D. Report
5
Tables store data
Monitors are the most common output device and include CRT and LCD displays. CRT monitors have a glass screen but produce heat and take up more space, while LCD monitors are smaller, lighter and use less power but are more expensive. Printers can produce physical copies and include laser, inkjet, and dot matrix printers. Laser printers use toners to produce high quality output quickly but are expensive, while inkjet printers use cartridges but offer cheaper printing in color or black and white. Dot matrix printers are not common now but were cheap to run and good for multiple copies. Other output devices include speakers, projectors, and providing instructions to devices like robots.
The clock speed of computers is usually measured in megahertz (MHz) or gigahertz (GHz). One megahertz (MHz) represents one million cycles per second, while one gigahertz (GHz) represents one billion cycles per second. A microprocessor that runs at 200 MHz would execute 200 million cycles per second. Faster clock speeds allow microprocessors to perform more instructions per second, making the computer run faster. However, other factors also influence a computer's overall speed.
Here are the key features of tables, queries, forms and reports in Microsoft Access:
A. Table
B. Query
C. Form
D. Report
2
A __________ extracts and
summarises information from one or
more tables.
A. Table
B. Query
C. Form
D. Report
3
A __________ provides an easy way
to view and enter information into a
database.
A. Table
B. Query
C. Form
D. Report
4
A __________ summarises
information from the database.
A. Table
B. Query
C. Form
D. Report
5
Tables store data
This document provides an introduction to a lesson on information and communication technology (ICT). It contains 10 multiple choice questions to test students' understanding of concepts related to ICT, including Tsai Lun's invention of paper, the development of alphabets, early forms of communication in Malaysia, and the definition of ICT. It also defines communication as the transmission of information and notes some key elements and advantages of ICT systems.
The Six Highest Performing B2B Blog Post FormatsBarry Feldman
If your B2B blogging goals include earning social media shares and backlinks to boost your search rankings, this infographic lists the size best approaches.
1) The document discusses the opportunity for technology to improve organizational efficiency and transition economies into a "smart and clean world."
2) It argues that aggregate efficiency has stalled at around 22% for 30 years due to limitations of the Second Industrial Revolution, but that digitizing transport, energy, and communication through technologies like blockchain can help manage resources and increase efficiency.
3) Technologies like precision agriculture, cloud computing, robotics, and autonomous vehicles may allow for "dematerialization" and do more with fewer physical resources through effects like reduced waste and need for transportation/logistics infrastructure.
