Who launched IBM's First PC in 1981?

Which was an early mainframe computer?

The software used to convert source program instructions to object instruction is known as

A magnetic tape volume that is used on a data processing operation without any change to its contents is

A device that prints one character at a time is kknown as

...... is collection of web pages and ...... is the very first page that we see on opening of a web-site

Which one of the following would be considered as a way that a computer virus can enter a computer system?

A high quality CAD system uses the following for printing drawing and graphs