Exercise 5

Question 16 :

What was the clock speed of the original IBM PC?


A). Less than 5 MHz
B). 10 MHz
C). 8 MHz
D). Just over 16 MHz
Answer : Option A

Explanation :

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


Question 17 :

What is NAT?


A). Network Address Translation
B). Network Administration Tool
C). Novell Address Transfer
D). Newly Added Technology
Answer : Option A

Explanation :

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


Question 18 :

What is not always necessary for accessing the Web?


A). A Web browser
B). A connection to an Internet Access Provider
C). A computer
D). A modem
Answer : Option D

Explanation :

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.


Question 19 :

On what date was the debut of the first IBM Personal Computer?


A). August 12, 1981
B). January 21 1979
C). August 21, 1980
D). January 12, 1982
Answer : Option A

Explanation :

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.


Question 20 :

A computer virus that actively attacks an anti-virus program or programs in an effort to prevent detection is...


A). Worm
B). Retrovirus
C). Trojan
D). Ghost virus
Answer : Option B