ACROSS

Units that make up two bytes $($plural$)$

Designed a system to record census data in $1890$; started a company that eventually evolved into IBM

System of many transistors and other electronic elements fused onto a chip

One of two individuals who designed and built the first electronic digital computer

I$/$O device consisting of a keyboard and a cathoderay tube display

Tiny piece of semiconductor material, usually silicon

Computer programs that tell the computer what to do and how to store data

One of two mathematicians who built mechanical calculators using pegged wheels to perform automatically the four arithmetic functions

Type of data processing in which a computer performs operations on defined data without human input or intervention

One of the individuals involved in developing UNIVAC, the first commercially successful, general purpose, stored$-$program electronic digital computer

Primary control center unit that carries out instructions

Term indicating that a computer is powered by electrical devices rather than by a mechanical device

DOWN

Leader of a team of scientists at Bell Laboratories who, in $1948,$ developed the transistor

Type of memory used for storing computational instructions or data that might change from time to time; sometimes called read$-$write memory

In microcomputers, sometimes the CPU is referred to as the

Device that identifies the route of entry and directs data from an input device to destinations; transfers computed results to the output device selected

Operation in which information is transferred into primary memory

Type of memory module that consists of groups of silicon chips etched with extremely small storage circuits

Operation in which results of a computation are transferred from primary memory to storage or to the user

Secondary memory device that stores digital data on a mirrored surface by modulating the reflective properties of that surface

In $1842,$ designed an analytic engine to perform general calculations automatically

Visible components of a computer

Secondary memory device that stores data in a series of concentric magnetic tracks