Technology — Part 2 MCQs with Explanations

A chip found in almost every microprocessor.

A URL (Uniform {or Universal} Resource Locator) is an address for a specific document found on the Web. It is made up of several components: a domain name, the directories and sub-directories of the site, and the extension. To learn about these parts of a URL, visit the Evaluating Web Sites tutorial.

Device used to convert AC to DC voltage.

On December 23, 1947, William Shockley, Walter Brattain and John Bardeen, of Bell Labs, announced their discovery of the point-contact germanium transistor to management.

On September 12, 1958, Jack Kilby demonstrated the first working IC while working for Texas Instruments, although the U.S. patent office awarded the first patent for an integrated circuit to Robert Noyce of Fairchild.

The three most commonly used Boolean operators are: AND, OR, and NOT. On the Web, Boolean operators are used in advanced searches to combine search items. For example, an "AND" operator between two words ("football AND television") tells the search engine to find documents that contain both of these words.

Alexander Graham Bell's notebook entry of 10 March 1876 describes his successful experiment with the telephone. Speaking through the instrument to his assistant, Thomas A. Watson, in the next room, Bell utters these famous first words, "Mr. Watson -- come here -- I want to see you".

Novell (based in Provo, UT) created NetWare which is still one of the most used PC networking systems in the world.

PROM stands for Programmable Read Only Memory and is not a type of expansion slot or bus design. Today, PCI has become the most used expansion slot design in PCs. Older PCs incorporated both PCI and ISA slots for computability with older expansion devices.

It is a chip dedicated to performing 3D calculations.

DOCSIS was developed by CableLabs. A standard set for Cable equipment to ensure compatibility across all DOCSIS networks.

A search engine is a program that searches for Web documents with keyword (s) you specify. Yahoo!, Google, Bing and AltaVista are just some examples of search engines that have been created to help you find information on the Web.

Subject directories tend to house fewer—sometimes more relevant—sites than those found through search engines. Sites in a subject directory often have been handpicked by editorial teams or specialists in a particular field.

LCP is a part of PPP(Point-Point Protocol).

VCM was designed by NEC Corp. It is supposed to be faster than normal SDRAM, and it is, but it never caught on.

Spiders are also referred to as "bots" or "crawlers," and constantly scan the Internet for new and updated Web sites.

The original IBM PC ran at a breathtaking 4.77 MHz (Smmmmmmokin!) Today there are new PC processors that run faster than 3 gigahertz.

NAT is commonly used by nearly all consumer routers today, both hardware and software.

You need a browser, online access and a computer to surf the Web, but if you're on a local area network (LAN) that's connected to the Internet, you don't need a modem to go online.

Before IBM created its personal computer, two types of computer systems, Apple II and CP-M, dominated the microcomputer world. Neither of these systems were PC compatible, or Mac-compatible (the two primary standards in place today). The original IBM PC became a new standard in the microcomputer industry. Since then, hundreds of millions of PC-compatible systems have been sold, as the original PC grew into a large family of computers and peripherals. More software has been written for this computer family than for any other system on the market.

1990 Symantec launches Norton AntiVirus, one of the first anti-virus programs developed by a large company.

The original IBM PC used 5.25-inch floppy disks to store its operating system and programs. IBM referred to the new hard disk as a Fixed Disk. Today, even a the operating system wont fit on a 10 MB disk.

Before the invention of word processing and spreadsheet software, personal computers had little value in the mainstream business world. WordStar was used before the days of function keys and the mouse. It, instead, used a set of Ctrl and Alt key combinations to navigate and edit text documents.

The transistor, which essentially is a solid-state electronic switch, replaced the much less suitable vacuum tube. Because the transistor consumed significantly less power, a computer system built with transistors was much smaller, faster and more efficient than a computer system built with vacuum tubes.

Time To Live specifies how many more hops a packet can travel before being dropped.

It is a protocol used to create VPN connections over the net.

1983 Fred Cohen, while working on his dissertation, formally defines a computer virus as 'a computer program that can affect other computer programs by modifying them in such a way as to include a (possibly evolved)copy of itself.'

The World Wide Web is a subset of the Internet. Specifically, the Web is a collection of documents and applications residing on Internet servers around the world.

MAC is short for Media Access Control address, an address unique to every piece of network hardware.

This was one of the most common viruses unleashed in 1988.

Typically it relies on someone emailing it to you, it does not email itself, it may arrive in the form of a joke program or software of some sort.

The 386 chip was the first to offer a possible 32- or 64-bit access to data. OS-2 2.x or higher and Windows 95 required at least a 386 CPU while Windows NT 4.x required at least a 486 CPU to run.

An Extended Capabilities Port is about 10 times faster than the old standard one, but it is used the same way a regular parallel port is.

Reduced Instruction Set Computer - a type of microprocessor that relies on simple instructions which can be used to build more complicated ones.

ICMP Packets are used to send control messages including errors.

A new type of disc developed by Constellation 3D Inc. These discs can hold up to to 140 GB of data.

A virus hoax is usually an email that gets mailed in chain letter fashion describing some devastating highly unlikely type of virus, you can usually spot a hoax because there's no file attachment, no reference to a third party who can validate the claim and the general 'tone' of the message.

A protocol developed by Netscape to allow secure connections over the net.

URL stands for Uniform Resource Locator. It is an address for a specific document found on the Web.

The Intel 8080 was a jazzed-up calculator chip. It was included in microcomputer kits which were little more than demonstration tools and did little except blink lights. Besides the 8080 chip, the Altair included a power supply, a front panel with a large number of lights and 256 bytes (not kilobytes) of memory. The kit sold for {$395} and had to be assembled.