Computers

This technical program provides a step-by-step explanation of the infrastructure of computers and how they actually work. An overview of the processor includes discussions about how its interconnections make memory possible. Other topics include the bus and binary works and memory storage locations. Using excellent computer graphics, we see how the arithmetic and logic unit (ALU) adds two binary numbers, and how the information is stored. A discussion of the ALU and flags concludes the program. (17 minutes)

Australia's largest independent digital media and entertainment company, destra, relies on a robust network for its day-to-day business. Using destra as a case study, this program begins with an overview of computer networks and then introduces issues involving architecture and infrastructure, processes and procedures, maintenance, security, and disaster recovery. An informative illustration of the technological requirements of an e-business leader. Original title: Networks. (27 minutes)

Computers: everyone uses them, but how do they actually work? This video goes beyond the desktop and program software to grapple with the system hardware itself. After a quick history of the computer, Inside a Computer takes a close look at the motherboard, with its central processing unit, RAM, and system clock; input devices such as the keyboard, mouse, and joystick; output devices like the monitor and printer; and storage devices, including internal and external hard disks and flash drives. The binary system of data management is also examined. Designed for computer novices, technicians-in-training, and experienced software users who want a better understanding of how a computer does what it does. Viewable/printable educational resources are available online. (27 minutes)

Designed for novices, this unintimidating program examines the basic steps involved in producing any piece of software: identifying the goal, crafting algorithms, coding and compiling, testing and debugging syntax and logic errors, and documenting. Since the video does not rely on viewer familiarity with specific computer languages, Introduction to Programming is a good starting point for any discussion of software-writing fundamentals. Viewable/printable educational resources are available online. (28 minutes)

Most computer users are familiar with terms such as chips, hard drives, and RAM, but what exactly is a chip and what does it do? What does a hard drive look like and how does it work? With helpful graphics and a lively presentation, this informative, entertaining program goes inside today's typical computer to look at the functions of its main components. Close-up visuals show the inner workings of the hard disc drive, while clever demonstrations make concepts such as memory, binary coding, and RAM easy to understand. Convenient summaries follow each section of new material. A viewable/printable instructor's guide is available online. (32 minutes)

Divided into five short segments for easy inclusion in lectures, this engaging and accessible program uses computer-rendered models to illustrate five essential topics in mathematics. These include how the Golden Ratio is calculated and has been applied to architecture, art, and design; the ratio of similitude and how it relates to the Pythagorean Theorem and fractals; defining pi using cylinders, regular polygons, the area of a circle, and the weight of geometric cutouts; Hippocratic crescents; and cylindrical and conic sections. An excellent tool for bringing a strong visual element into the teaching of algebra and geometry. (52 minutes)

Astonishing ways to share scientific data are emerging in the digital age. This program explores the phenomenal growth of supercomputing and its impact on medicine, oceanography, air traffic control, law enforcement, and other fields. Showcasing practical examples of dynamic visualization technology, the video looks at three-dimensional renderings of cities accurate to the square foot, medical imaging capabilities on the cellular level, and instantaneous collaboration between laboratories a hemisphere apart. Commentary by virtual reality pioneer Jaron Lanier and other innovators underscores the need to recognize the human factor in the age of supercomputers. (27 minutes)

The history of computers is not just the story of a specialized machine but of a great idea and the people who made it happen. Initially designed as large-scale calculators, computers have quickly become indispensable tools in every field of endeavor. This fascinating program traces the course of technological innovations leading up to today's computers, from Charles Babbage and his analytical engine of the 1860s to 21st-century PCs. All the major concepts, advances, and companies are explored using demonstrations, expert commentary, and historic film footage and interviews. The program shows how ideas such as Boolean logic, the binary system, magnetic/iron core memory, and microprocessors have dramatically increased the capacity of computers while drastically reducing their size, a phenomenon known as Moore's Law. The personal computer or PC boom is easily seen as an inevitable event, with software programmers such as Steve Jobs and Bill Gates emerging as its leaders. A viewable/printable instructor's guide is available online. A Cambridge Educational Production. (26 minutes)